Updated on 2024/10/11

Information

 

写真a

 
TANAKA HIROYOSHI
 
Organization
Faculty of Engineering Department of Mechanical Engineering Assistant Professor
School of Engineering （Concurrent）
Graduate School of Engineering Department of Hydrogen Energy Systems（Concurrent）
Title
Assistant Professor
Contact information
メールアドレス
Tel
0928023075
Profile
Based on the rolling sliding contact fatigue of mechanical rolling elements and DLC coating film, effects of hydrogen on mechanical elements have been investigated. These will help to provide practical education and activation for work with business region.
External link

Degree

  • PhD

  • BPh

Research Interests・Research Keywords

  • Research theme： Friction and wear properties and environmental compatibility of rubber materials used in hydrogen facilities

    Keyword： Hydrogen, rubber materials, environmental compatibility, friction and wear, failure

    Research period： 2022.4 - 2024.3

  • Research theme： Durability Evaluation of Ultra-High Pressure fitting used in hydrogen facilities

    Keyword： Hydrogen, CT fitting, deformation, failure

    Research period： 2019.4 - 2023.3

  • Research theme： Friction and wear of DLC films in hydrogen

    Keyword： DLC, hydrogen, friction, wear

    Research period： 2012.5

  • Research theme： Lubrication performance of greases

    Keyword： grease, friction and wear, rolling contact fatigue

    Research period： 2010.4

  • Research theme： Friction and wear in hydrogen gas, Rolling contact fatigue in hydrogen, peameation properties of hydrogen into materials under high pressure hydrogen.

    Keyword： sliding contact, friction and wear, rolling contact, fatigue life, high pressure hydrogen, peameation properties of hydrogen, surface analysis

    Research period： 1989.4

Awards

  • ２０１３年度第５７期日本トライボロジー学会 論文賞

    2014.5   一般社団法人日本トライボロジー学会   Effect of Environment Gas on Surface Initiated Rolling Contact Fatigue，Tribology Online, 8,1, (2013) pp.90-96.

    　More details

    It is widely recognized that hydrogen atoms adsorbed at steel surface permeate into the steel in rolling contact to reduce rolling contact fatigue life. Oxide film on steel surface may influence the permeation properties of hydrogen. However, how the surface film prevents or promotes hydrogen permeation is yet to be studied for the purpose of finding an effective way to prevent hydrogen permeation and early occurrence of spalling failure. This paper describes a study to explore the effects of temperature on the formation of oxide film and fatigue life in hydrogen, argon and air. Rolling contact fatigue tests are conducted at 333 K and 363 K by using a three-ball-on-disk type apparatus. The rolling contact fatigue life in hydrogen was shorter than that in argon, and life in air was the longest. Relationship was found between fatigue life and hydrogen concentration in steel. Also, it was found that iron oxide grew to larger grain size in the surface layer in hydrogen environment, which may result in shorter fatigue life. Finally, fatigue failure on ball surface which frequently occurs in hydrogen at 363 K is discussed.

  • International hydrogen energy development forum 2010 Distinguished Presentation Award

    2010.2   National Institute of Advanced Industrial Science and Technology - Recearch Center for Hydrogne Industrial Use and Strage (HYDROGENIUS)   Effects of exposure to high pressure hydrogen on DLC films

Papers

  • Effects of Boundary Lubrication with Alkyl Diphenyl Ether Oils on Rolling Contact Fatigue Life of Steel Reviewed

    TANAKA Hiroyoshi, HATA Masayuki, MANO Kazuhito, SUGIMURA Joichi

    JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS   69 ( 3 )   207 - 217   2024.3   （ ISSN:09151168 eISSN:21899967 ）

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japanese Society of Tribologists  

    <p>Alkyl diphenyl ether, ADE, synthetic lubricant oil is often used in severe lubrication conditions by its high oxidation stability and lubrication properties. In this study, pure rolling and rolling-sliding contact fatigue test was conducted lubricated with ADE’s. Poly alpha olefin, PAO was also used as reference lubricant. Some polyphenyl ethers were added to ADE to know the effects of polarity of ether group under severe rolling contact condition. In pure rolling condition at 150°C in nitrogen, ADE showed higher fatigue life than PAO. The bearing life was extended further by polyphenyl ether additives. ADE and ADE with polyphenyl ether oils formed carbon rich surface film on the rolling track during the rolling contact fatigue test. ADE also showed a higher bearing life than PAO under rolling-sliding contact. Traction force and wear was slightly higher with ADE than PAO in a higher slip range.</p>

    DOI： 10.18914/tribologist.23-00005

    CiNii Research

  • Study on Lubrication and Rolling Contact Fatigue with Alkyl Diphenyl Ether Oil Reviewed

    TANAKA Hiroyoshi, HATA Masayuki, MANO Kazuhito, SUGIMURA Joichi

    JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS   69 ( 2 )   134 - 144   2024.2   （ ISSN:09151168 eISSN:21899967 ）

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japanese Society of Tribologists  

    <p>Rolling contact fatigue, RCF, of steel under lubrication with alkyl diphenyl ether, ADE, and poly alpha olefin, PAO, in three environmental gas conditions was studied. RCF tests were conducted at 150°C with ball and disk configuration, and hydrogen concentration in steel, chemical changes of oils and rolling surfaces were analyzed after the tests. In order to confirm basic oil properties, such as viscosity-pressure coefficient of oil under contact condition, film thicknesses under pure rolling contact were also measured by interferometry method with using ball on disk type tribo tester. ADE had greater RCF life in nitrogen than PAO with the same viscosity. This was caused by ADE’s higher viscosity-pressure coefficient, carbon-rich surface film formation and higher chemical stability to decompose and to generate hydrogen on nascent steel surface. On the other hand, in air, ADE also showed greater RCF life than PAO. This was ascribed to higher anti-oxidation stability of ADE.</p>

    DOI： 10.18914/tribologist.23-00003

    CiNii Research

  • Tribochemistry of Transfer Layer Evolution during Friction in HiPIMS W-C and W-C:H Coatings in Humid Oxidizing and Dry Inert Atmospheres Reviewed International coauthorship International journal

    Lofaj, F; Tanaka, H; Bures, R; Kabatova, M; Sawae, Y

    COATINGS   12 ( 4 )   2022.4   （ eISSN:2079-6412 ）

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Coatings  

    The experimental and theoretical investigations of transfer layers in the dry sliding contacts between steel ball and HiPIMS W-C and W-C:H coatings were performed in humid air, dry nitrogen, hydrogen and vacuum on a series of coatings with different contents of carbon and hydrogen in the matrix. Transfer layers formed on the ball in all friction tests, but their composition varied depending on the environment. In humid air, the mechano(tribo)chemical reactions necessary for the obtained phases involved oxidation of WC and Fe, water vapor decomposition and hydrogenation of carbon. Modeling indicated that humidity enhanced oxidation and carbon hydrogenation. In nitrogen, WC decomposition generating carbon was dominant, whereas, in hydrogen, it was carbon hydrogenation. In vacuum, WC decomposition producing W was found to be responsible for high coefficients of friction (COFs). COFs approaching superlubricity were obtained in the H2 atmosphere in the coatings with sufficiently high matrix C:H content. COFs seem to be controlled by the ratio of hydrogenated carbon and oxide phases in transfer layer, which depends on the reactions possible in the surrounding atmosphere.

    DOI： 10.3390/coatings12040493

    Web of Science

    Scopus

  • Modelling of tribo-chemical reactions in HiPIMS W-C:H coatings during friction in different environments Reviewed International coauthorship International journal

    Lofaj, F; Bures, R; Kabátová, M; Tanaka, H; Sawae, Y

    SURFACE & COATINGS TECHNOLOGY   434   2022.3   （ ISSN:0257-8972 eISSN:1879-3347 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Surface and Coatings Technology  

    The modelling of simultaneous chemical reactions in complex systems was successfully applied to mechano(tribo)chemical reactions during friction between steel ball and High Power Impulse Magnetron Sputtered (HiPIMS) W-C:H coatings in humid air, dry nitrogen, hydrogen and in vacuum. The main mechano(tribo)chemical reactions leading to transfer layer formation in humid air - oxidation of WC and Fe, water vapor decomposition and carbon hydrogenation - were confirmed. In nitrogen, the decomposition of WC producing carbon was predicted. The prediction in hydrogen was only the formation of methane. In vacuum, the decomposition of WC and FeOWO3 into W and Fe and CO formation were dominant. Thus, the friction is controlled via amount of hydrogenated carbon resulting from the dominant mechano(tribo)chemical reactions.

    DOI： 10.1016/j.surfcoat.2022.128238

    Web of Science

    Scopus

  • Effect of Environmental Gas on Surface Initiated Rolling Contact Fatigue Reviewed International journal

    Hiroyoshi Tanaka

    Tribology Online   8 ( 1 )   90 - 96   2013.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    This paper describes an exploratory study on the effects of temperature on the formation of oxide film and rolling contact fatigue life in hydrogen, argon and air. Rolling contact fatigue tests were conducted at 333 K and 363 K by using a three-ball-on-disk type apparatus. The rolling contact fatigue life in hydrogen was shorter than that in argon, and life in air was the longest. Relationship was found between fatigue life and hydrogen concentration in steel. Cross sections of the specimens show that iron oxide grew to larger grain size in the subsurface in hydrogen environment, which may have resulted in shorter fatigue life. It was also found that fatigue failure occurs on ball surface in hydrogen at 363 K.

  • DLC膜に及ぼす40MPa水素ガス曝露の影響 Reviewed

    田中宏昌，森田健敬，澤江義則，杉村 丈一

    トライボロジスト   54 ( 12 )   2009.12

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

    Effects of Exposure to 40MPa Hydrogen on DLC Films

  • Introduction to Special, Extreme Environment Reviewed

    TANAKA Hiroyoshi

    JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS   68 ( 8 )   564 - 566   2023.8   （ ISSN:09151168 eISSN:21899967 ）

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japanese Society of Tribologists  

    DOI： 10.18914/tribologist.68.08_564

    CiNii Research

  • Hydrocarbon Luricants Can Control Hydrogen Embrittlement Invited Reviewed International journal

    Monica Ratoi, Hiroyoshi Tanaka, Brian, G. Mellow, Joichi Sugimura

    Scientific Reports   2021.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi.org/10.1038/s41598-020-58294-y , 10:1361

  • The role of synthetic oils in controlling hydrogen permeation of rolling/sliding contacts Invited Reviewed International journal

    Hiroyoshi Tanaka, Monica Ratoi, Joichi Sugimura

    RSC Advances   11   726 - 738   2020.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/d0ra00294a,

  • Use of Pyrene for Quantitative Fluorewcence Observation of Li-Grease around EHL Contacts Invited Reviewed International journal

    David Kostal, Shugo Onitsuka, Hiroyoshi Tanaka, Joichi Sugimura, Ivan Krupka, Martin Hartl,

    Tribology Online   15 ( 3 )   117 - 125   2020.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.triboint.2020.106458

  • Effect of Slip on Permeation of Hydrogen into Steel in Cyclic Contact Reviewed International journal

    takehumi Otsu, Hiroyoshi Tanaka, Joichi Sugimura

    Tribology letter   63 ( 4 )   1 - 8   2016.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    The amount of hydrogen in the steel specimens
    obtained from a cyclic contact test was investigated in
    order to understand the process of permeation of hydrogen
    into the steel in rolling contact. Cyclic contact test with slip
    was conducted in a sealed chamber, in which cyclic stress,
    slip and surrounding gas were controlled. The amount of
    hydrogen in the steel after the test was analysed by secondary
    ion mass spectrometry. It was found that the
    amount of permeated hydrogen after the test performed in
    hydrogen gas was not greater than those after the tests in
    dry air and vacuum condition. It was also found that the
    oxide film and the hydroxide film were formed on the
    contact area after the test in hydrogen gas. These results
    suggested that the oxide film and the hydroxide film,
    formed in the process of cyclic contact with slip, prevented
    hydrogen from permeating into the steel.

    DOI： 10.1007/s11249-016-0691-x

  • Simple Experiment on Permeation of Hydrogen into Steel in Cyclic Contact Reviewed International journal

    Takefumi Otsu, Hiroyoshi Tanaka, Katsu Ohnishi and Joichi Sugimura

    Tribology Online   6 ( 7 )   2011.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.2474/trol.6.311

  • Observation of Hydrogen Permeation into Fresh Bearing Steel Surface by Thermal Desorption Spectroscopy Reviewed International journal

    Hiraku Tanimoto, Hiroyoshi Tanaka and Joichi Sugimura

    Tribology Online   6 ( 7 )   2011.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.2474/trol.6.291

  • 水素ガス雰囲気におけるDLC膜の摩擦摩耗 Reviewed

    田中宏昌・和泉直志・杉村丈一

    トライボロジスト   2009.10

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

    Friction and wear of DLC films in hydrogen gas

  • New Experiment System for Sliding Tests in Hydrogen and Surface Analysis with Transfer Vessel Reviewed International journal

    H. Tanaka, Y. Sawae, K. Fukuda, S. Yamagami, T. Morita, N. Izumi, J. Sugimura

    Tribology Online   2009.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    New Experiment System for Sliding Tests in Hydrogen and Surface Analysis with Transfer Vessel

  • Friction and wear characteristics of molybdenum dithiocarbamate with alloy steels Reviewed International journal

    Hiroyoshi Tanaka, Masaaki Hashimoto, Seigo Gondo and Yuji Yamamoto,

    Tribology online   2006.10

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    Language：English   Publishing type：Research paper (scientific journal)  

▼display all

Presentations

  • Effects of Transition Metals on Low Friction of DLC Coatings Invited International conference

    Hiroyoshi Tanaka, Joichi Sugimura

    2021 Hydrogenius and I2Cner Tribology Symposium  2021.1 

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    Event date： 2021.1

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Online   Country：Japan  

  • Effects of transition metals on low friction of DLC coatings International conference

    田中 宏昌

    2019 ITC sendai, Miyagi Japan  2019.9 

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    Event date： 2019.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Miyagi, Japan   Country：Japan  

    In this study, two transient metals, Titanium and Chromium, are selected and doped to the DLC coating. Sliding tests are conducted to see how the transient metals gives rise to low friction and wear.

  • Effect of molecular structure of synthetic oils on decomposition and hydrogen generation in rolling contact International conference

    田中 宏昌

    2018 Tribology Frontiers Conference, Chicago Illinois  2018.10 

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    Event date： 2018.10 - 2018.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Chicago, US   Country：United States  

    This study describes effects of additives on hydrogen permeation into bearing steel under rolling contact. Rolling contact tests were conducted under oil lubrication in hydrogen. PAO, POE, PPG were used as lubricants.

  • Permeation of hydrogen into steel under rolling contact in various gas with additive free oils International conference

    田中 宏昌

    Tribology frontier 2016  2016.11 

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    Event date： 2016.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Chicago, US   Country：United States  

    This study describes effects of additives on hydrogen permeation into bearing steel under rolling contact. Rolling contact tests were conducted under oil lubrication in hydrogen. PAO, POE, PPG were used as lubricants.

  • Effects of lubricant additives on hydrogen permeation under rolling contact International conference

    田中 宏昌

    Tribology frontier 2015  2015.10 

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    Event date： 2015.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Denver   Country：United States  

    This study describes effects of additives on hydrogen permeation into bearing steel under rolling contact. Rolling contact tests were conducted under oil lubrication in hydrogen. WS2 nanoparticles, TOP, DBDS, ZDDP and MoDTC were used as lubricant additive

  • Hydrogen Permeation through Oxide Layer on Steels International conference

    田中 宏昌

    ITC2015  2015.9 

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    Event date： 2015.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Tokyo   Country：Japan  

    This paper describes the surface film formation and hydrogen permeation on steel surface under hydrogen environment. Sliding tests of bearing steel AISI52100 and stainless steel AISI440C are conducted in hydrogen and vacuum with oil lubrication.

  • 鋼表面における酸化膜形成と水素侵入 Invited

    田中宏昌

    日本トライボロジー学会　第81回メンテナンス・トライボロジー研究会  2012.2 

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    Event date： 2012.2

    Presentation type：Oral presentation (general)  

    Venue：九州大学伊都キャンパス   Country：Japan  

  • Fluid Flow between Parallel Sliding Surfaces with Rectangular Microdimples International conference

    Takahiro Yamanaka, Hiroyoshi Tanaka, Kazuyuki Yagi, Joichi Sugimuura

    International Tribology Conference, Hiroshima 2011  2011.11 

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    Event date： 2011.10 - 2011.11

    Presentation type：Oral presentation (general)  

    Venue：Hiroshima   Country：Japan  

    Surface micro-texturing has recently attracted considerable attention for its capability to improve lubrication. The roles of the textures in the form of dimples and grooves are roughly threefold; to improve hydrodynamic lubrication to provide lower friction or higher load capacity, to act as oil reservoirs to provide oil supply, and to collect wear debris from contact area to minimize subsequent wear caused by the debris. Although everyone may know them, it appears that the mechanisms for these functions are not fully understood. This study focuses on the second function, the fluid supply to thin lubricating film with textured surfaces. Following the previous experiments on regularly arranged circular microdimples, rectangular microdimples with different orientations are studied.

  • Effect of Temperature on Surface Initiated Rolling Contact Fatigue in Hydrogen Environment International conference

    Hiroyoshi Tanaka, Tatsuhiko Morofuji, Masaaki Hashimoto, Joichi Sugimura

    International Tribology Conference, Hiroshima 2011  2011.11 

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    Event date： 2011.10 - 2011.11

    Presentation type：Oral presentation (general)  

    Venue：Hiroshima   Country：Japan  

    It is widely recognized that hydrogen atoms adsorbed at steel surface permeate into the steel in rolling contact resulting in reduction of rolling contact fatigue life. Oxide film on steel surface may influence the permeation properties of hydrogen. However, how surface film prevents or promotes hydrogen permeation is yet to be studied for the purpose of finding an effective way to prevent hydrogen permeation and early occurrence of flaking failure. This paper describes a study to explore the effects of temperature on formation of oxide film and fatigue life in hydrogen, argon and air. Rolling contact fatigue tests in fully flooded conditions are conducted by using a three-ball-on-disk type apparatus at 333 K and 363 K.

  • Surface film formation and hydrogen permeation of austenitic stainless steel under high pressure hydrogen International conference

    Hiroyoshi Tanaka, Yoshinori Sawae, Joichi Sugimura

    ASME/STLE 2011 International Joint Tribology Conference, IJTC2011  2011.10 

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    Event date： 2011.10

    Presentation type：Oral presentation (general)  

    Venue：Los Angeles, California   Country：United States  

    This paper describes the surface film formation and hydrogen permeation of stainless steel under high pressure hydrogen. In order to see the hydrogen permeation property of stainless steels, exposure test into high pressure hydrogen were demonstrated using stainless steel AISI Type 440C, 316 and 316L disks specimens. To investigate the content of hydrogen in the specimens and characteristics of surface oxide layer, desorption spectra of hydrogen and water by TDS were acquired. Meanwhile, XPS analyses were performed to identify chemical composition of the exposed surface. These results suggested that the permeation property of hydrogen through the steel surface related to the desorption behavior of moisture, which may be caused by the surface film formed during the exposure to high pressure and/or desorption process during TDS.

  • Oxidation of steel surface under repeated contact in hydrogen2011.09.08. International conference

    Joichi Sugimura, Hiroyoshi Tanaka, Hiraku Tanimoto, Takefumi Otsu, Masaaki Hashimoto,

    38th Leeds-Lyon Symposium on Tribology  2011.9 

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    Event date： 2011.9

    Venue：Lyon   Country：France  

  • Effects of High Pressure Hydrogen Gas on Surface Properties of Steels International conference

    Hiroyoshi Tanaka, Nobuo Sakai, Yoshinori Sawae, Joichi Sugimura

    2011 Hydrogenius Tribology Symposium, International Hydrogen Energy Development Forum 2011  2011.2 

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    Event date： 2011.2

    Presentation type：Symposium, workshop panel (public)  

    Venue：Kyushu University   Country：Japan  

  • Effects of High Pressure Hydrogen Gas on Surface Properties of Steels International conference

    Hiroyoshi Tanaka, Nobuo Sakai, Yoshinori Sawae, Joichi Sugimura

    2011 Hydrogenius Tribology Symposium, International Hydrogen Energy Development Forum 2011  2011.2 

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    Event date： 2011.2

    Presentation type：Symposium, workshop panel (public)  

    Venue：Kyushu University   Country：Japan  

  • 水素ガス雰囲気中の転がり疲れ Invited

    田中宏昌

    明治大学学術フロンティア第4回シンポジウム2010-03-05  2010.3 

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    Event date： 2010.3

    Presentation type：Symposium, workshop panel (public)  

    Venue：明治大学   Country：Japan  

    Rolling fatigue in hydrogen gas environment

  • Different failure modes in rolling contact of steel under grease lubrication International conference

    田中 宏昌, Joichi Sugimura, Suguru Ikeda

    STLE tribology frontier 2014  2014.10 

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    Language：English   Presentation type：Oral presentation (general)  

    Venue：Chicago, US   Country：United States  

    Rolling contact fatigue test under grease lubrication is conducted for the purpose of clarifying effect of surrounding gas on rolling contact fatigue life. The influence of temperature, atmosphere, and grease types is investigated through surface analysis, hydrogen diffused in steel, the composition of surface film and the characteristics of lubrication state. The bearing life depended on environment and lubricant, and surface failure was classified into three types in terms of surface roughness and temperature change. At higher temperature, there is a tendency that roughness becomes smaller and bearing life is extended.

  • Rolling Contact Fatigue under Grease Lubrication in Hydrogen International conference

    Hiroyoshi Tanaka

    IJTC2012  2012.10 

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    Language：English   Presentation type：Oral presentation (general)  

    Venue：Denver Colorado US   Country：United States  

    In order to investigate the effects of greases on rolling contact fatigue life in hydrogen, we will focus on how surface film formation
    Wettability or polarity of base oil, thickener of grease affects the surface initiated and/or subsurface initiated rolling contact fatigue.

  • PERMEATION OF HYDROGEN INTO STEEL IN SIMPLE CYCLIC CONTACT TESTS International conference

    田中 宏昌

    ISFF7  2013.4 

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    Language：English   Presentation type：Oral presentation (general)  

    Venue：Christchurch Oxford, UK   Country：United Kingdom  

    This paper describes permeation of hydrogen under simple mechanical motion at tribo-interface. It has been believed that hydrogen plays an important role in degrading mechanical properties of ferrous materials in rolling contact. It is necessary to study each of the effects of elementary processes at contact and slip on hydrogen permeation into steel. An experimental apparatus was used which enabled a variety of simple contact tests with cyclic normal loading and reciprocating sliding for each in controlled environment

  • Rolling contact fatigue test with greases in hydrogen environment International conference

    田中 宏昌

    WTC2013  2013.9 

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    Language：English   Presentation type：Oral presentation (general)  

    Venue：Trino, Italy   Country：Italy  

    This paper describes a study on grease lubrication of rolling element bearing under hydrogen environment. Rolling contact fatigue tests were conducted with greases under hydrogen and other gas environments. In order to find influences of hydrogen on several greases, relationship between RCF life and permeation of hydrogen and/or surface condition are focused on.

  • EFFECTS OF HYDROGEN ON STRUCTURAL CHANGE AND ROLLING CONTACT FATIGUE OF STEEL International conference

    田中 宏昌

    Asiatrib2014  2014.2 

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    Language：English   Presentation type：Oral presentation (general)  

    Venue：Agra, India   Country：India  

    This paper describes experimental study of rolling contact fatigue under various conditions. Ball-on-disk type rolling contact fatigue tests were conducted in hydrogen and other gasses. Some of the specimens contained extra amount of hydrogen by the pre-treatment of hydrogen exposure prior to the tests. After the rolling contact fatigue test, hydrogen content measurement with thermal desorption spectroscopy, cross section observations with SEM(Scanning electron microscope) and EsB (Energy selective back-scatter) detector were conducted.

  • Effects of environmental gas on decomposition of lubricant and hydrogen generation at nascent iron surface International conference

    田中 宏昌, Joichi Sugimura, Taiki komatsu

    Asiatrib2014  2014.2 

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    Language：English   Presentation type：Oral presentation (general)  

    Venue：Agra, India   Country：India  

    Lubricated sliding tests of iron were made in a temperature controlled chamber, and the amount of hydrogen generated was determined with gas chromatography. The lubricants used included polyalphaolephine polyorester, polypropyrenglycol and dimethyl silicone oil. It was found that the amount of hydrogen generated is significantly larger when nascent surface is continuously created than under static non-sliding conditions. It was also found that hydrogen generation is retarded when the environment gas contains more oxygen. Among the oils tested, the silicone oil showed very low hydrogen generation under non-sliding condition while it generates much greater amount of hydrogen than other lubricants.

  • DLC膜と純金属の摩擦耗に及ぼす酸素水分影響 Effects of Oxygen and Water on Friction Wear DLC against Pure Metals

    @田中 宏昌，# 眞鍋 佳資， @杉村丈一

    トライボロジー会議2017秋高松  2017.11 

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    Event date： 2017.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：高松   Country：Japan  

  • Effects of exposure to high pressure hydrogen on DLC films International conference

    Hiroyoshi Tanaka, Takehiro Morita, Yoshinori Sawae, Joichi Sugimura

    International hydrogen energy development forum 2010  2010.2 

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    Event date： 2010.2

    Presentation type：Symposium, workshop panel (public)  

    Venue：Kyushu university   Country：Japan  

  • Sliding friction and wear of DLC coating films in hydrogen environment International conference

    Hiroyoshi Tanaka, Naoshi Izumi, Joichi Sugimura

    WTC2009  2009.9 

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    Event date： 2009.9

    Presentation type：Oral presentation (general)  

    Venue：Kyoto international coference center   Country：Japan  

    Sliding friction and wear of DLC coating films in hydrogen environment

  • Sliding experiments in hydrogen and surface analysis of DLC coating films International conference

    Hiroyoshi Tanaka, Joichi Sugimura

    ECOTRIB2009  2009.6 

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    Event date： 2009.6

    Presentation type：Oral presentation (general)  

    Venue：Pisa university   Country：Italy  

    Sliding experiments in hydrogen and surface analysis of DLC coating films

  • Sliding friction and wear of DLC coating films in hydrogen environment

    Hiroyoshi Tanaka

    International hydrogen energy development forum 2009  2009.2 

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    Event date： 2009.2

    Presentation type：Symposium, workshop panel (public)  

    Venue：九州大学伊都キャンパス   Country：Japan  

  • Friction test and analysis system with transfer vessel International conference

    Hiroyoshi Tanaka

    International hydrogen energy development forum 2008  2008.2 

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    Event date： 2008.2

    Presentation type：Symposium, workshop panel (public)  

    Venue：九大伊都キャンパス   Country：Japan  

  • Effects of content of Mo in Fe alloy on formation of MoS2 surface film at sliding contact International conference

    H. Tanaka, Y. Yamamoto, B. Ono

    International Tribology Conference Kobe  2005.6 

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    Presentation type：Oral presentation (general)  

    Venue：Kobe   Country：Japan  

  • Rolling contact fatigue of bearing steel in hydrogen environment International conference

    H. Tanaka, M. Hashimoto, J. Sugimura, Y. Yamamoto,

    WTC2005  2005.9 

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    Presentation type：Oral presentation (general)  

    Venue：washington D.C.   Country：United States  

  • FRICTIONAL PROPERTIES OF DLC COATING FILM UNDER HYDROGEN ENVIRONMENT International conference

    Hiroyoshi Tanaka*, Joichi Sugimura,Takahiro Nakahigashi and Masanori Tsujioka

    ASIATRIB 2006 KANAZAWA  2006.10 

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    Presentation type：Oral presentation (general)  

    Venue：kanazawa   Country：Japan  

  • ROLLING CONTACT FATIGUE OF SOME BEARING STEELS IN HYDROGEN ENVIRONMENT International conference

    Hiroyoshi Tanaka*, Masaaki Hashimoto, Joichi Sugimura and Yuji Yamamoto

    ASIATRIB 2006 KANAZAWA  2006.10 

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    Presentation type：Oral presentation (general)  

    Venue：kanazawa   Country：Japan  

  • Rolling contact fatigue life under pure rolling in hydrogen environment International conference

    Hiroyoshi TANAKA , Takahiro YAMAMOTO, Yuji YAMAMOTO, Joichi SUGIMURA

    34th Leeds-Lyon symposium on Tribology  2007.9 

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    Presentation type：Oral presentation (general)  

    Venue：INSA de LYON, Lyon   Country：France  

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Industrial property rights

Patent   Number of applications: 0   Number of registrations: 0
Utility model   Number of applications: 0   Number of registrations: 0
Design   Number of applications: 0   Number of registrations: 0
Trademark   Number of applications: 0   Number of registrations: 0

Professional Memberships

  • 日本機械学会

  • 日本トライボロジー学会

Committee Memberships

  • 日本機械学会設計工学システム部門   広報委員   Domestic

    2015.5 - 2018.4   

  • トライボロジー学会   編集委員，広報情報化委員   Domestic

    2012.5 - 2015.5   

Academic Activities

  • chairperson International contribution

    2023 Hyrogenius and I2Cner Tribology Symposium  （ Hospital Campus, Kyushu University Japan ） 2023.2

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    Type：Competition, symposium, etc. 

  • Screening of academic papers

    Role(s)： Peer review

    2022

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：3

    Number of peer-reviewed articles in Japanese journals：1

  • chairperson International contribution

    2021 Hyrogenius and I2Cner Tribology Symposium  （ Online Japan ） 2021.1

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    Type：Competition, symposium, etc. 

  • Screening of academic papers

    Role(s)： Peer review

    2021

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：3

    Number of peer-reviewed articles in Japanese journals：1

  • 実行委員 International contribution

    日中トライボロジ先端フォーラム2018  （ Japan ） 2018.4

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    Type：Competition, symposium, etc. 

    Number of participants：70

  • 座長（Chairmanship）

    機械学会年次大会  （ Japan ） 2016.9

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    トライボロジー学会2015春姫路  （ Japan ） 2015.5

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    トライボロジー会議2014秋盛岡  （ Japan ） 2014.11

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    機械学会九州支部第６６期総会講演会  （ Japan ） 2013.3

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    トライボロジー会議2012秋室蘭  （ Japan ） 2012.9

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    機械学会九州支部第６５期総会講演会  （ Japan ） 2012.3

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship） International contribution

    International Tribology Conference, Hiroshima 2011  （ Hiroshima Japan ） 2011.10 - 2011.11

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    トライボロジー会議２０１１春東京  （ Japan ） 2011.5

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    トライボロジー会議２０１０春東京  （ Japan ） 2010.5

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    機械学会九州支部四国九州支部合同企画長崎講演会  （ Japan ） 2009.10

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    トライボロジー会議２００７秋佐賀  （ Japan ） 2007.9

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    Type：Competition, symposium, etc. 

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Research Projects

  • 戦略的国際共同研究プログラム（SICORP） 「水素技術」における日本－ドイツ国際産学連携共同研究 International coauthorship

    2022.4 - 2025.3

    九州大学(日本)　NOK株式会社(日本)　ドイツ連邦材料試験所(ドイツ)　フロイデンベルグ(ドイツ) 

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    Authorship：Coinvestigator(s) 

  • 超高圧水素インフラ本格普及技術研究開発事業

    2018.6 - 2021.2

    経済産業省 

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    Authorship：Coinvestigator(s) 

    長寿命高圧水素シール部材・継手部材および機器開発に関する研究開発

  • CREST:エネルギー高効率利用のための相界面科学

    2015.5

    文部科学省 

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    Authorship：Coinvestigator(s) 

    超低摩擦機械システムのためのトライボ化学反応を制御したナノ界面創成

  • WPI international institute for carbon neutral energy research International coauthorship

    2012.5

  • U.S. Department of Energy, Wind and water power program International coauthorship

    2010.11 - 2011.1

    Department of Energy (U.S.) 

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    Authorship：Coinvestigator(s) 

    Argonne national laboratory has contributed to the wind program funded by U.S. Department of Energy, my research was in the part of this program. Purpose of this study is rolling contact fatigue in wind turbines system, especially in micropitting on gears in wind turbines.

  • 水素先端科学基礎研究事業

    2008.7

    NEDO技術開発機構 

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    水素について重要な科学的知見を集積して、水素を安全・簡便に利用するための指針を産業界に提供することにより、水素社会到来に向けた基盤整備を行うことを目的とする

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Educational Activities

  • charge of practice of experiment, graduation thesis, helping for foreign students

Class subject

  • プログラミング演習(P)

    2024.6 - 2024.8   Summer quarter

  • 機械設計II（B）

    2024.4 - 2024.6   Spring quarter

  • 機械設計Ⅰ（B）

    2023.12 - 2024.2   Winter quarter

  • 機械工学実験第二

    2023.10 - 2024.3   Second semester

  • 機械設計Ⅰ（B）

    2022.12 - 2023.2   Winter quarter

  • プログラミング演習(P)

    2022.6 - 2022.8   Summer quarter

  • 機械設計Ⅱ（B）

    2021.12 - 2022.2   Winter quarter

  • 機械設計Ⅰ（B）

    2021.10 - 2021.12   Fall quarter

  • プログラミング演習(P)

    2021.6 - 2021.8   Summer quarter

  • 機械設計Ⅱ(Bクラス）

    2020.12 - 2021.2   Winter quarter

  • 機械設計Ⅰ(Bクラス）

    2020.10 - 2020.12   Fall quarter

  • 機械設計Ⅱ（Bクラス）

    2019.12 - 2020.2   Winter quarter

  • 空間表現実習Ⅰ

    2019.10 - 2020.3   Second semester

  • 機械工学実験第二（Aクラス）

    2019.10 - 2020.3   Second semester

  • 機械工学実験第二（Bクラス）

    2019.10 - 2020.3   Second semester

  • 機械設計Ⅰ（Bクラス）

    2019.10 - 2019.12   Fall quarter

  • プログラミング演習

    2019.4 - 2019.9   First semester

  • 機械設計Ⅱ

    2018.12 - 2019.2   Winter quarter

  • 空間表現実習Ⅰ

    2018.10 - 2019.3   Second semester

  • 機械設計Ⅰ

    2018.10 - 2018.12   Fall quarter

  • プログラミング演習

    2018.4 - 2018.9   First semester

  • 機械設計第一・同演習

    2017.10 - 2018.3   Second semester

  • ﾌﾟﾛｸﾞﾗﾐﾝｸﾞ演習

    2017.4 - 2017.9   First semester

  • 機械工学実験第二

    2016.10 - 2017.3   Second semester

  • 機械工学実験第二

    2016.4 - 2016.9   First semester

  • 設計工学演習

    2015.10 - 2016.3   Second semester

  • 機械工学実験第二

    2015.4 - 2015.9   First semester

  • 情報処理演習Ⅲ

    2012.4 - 2012.9   First semester

  • コアセミナー

    2012.4 - 2012.9   First semester

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FD Participation

  • 2016.12   Role：Participation   Title：「発明」で未来を“拓く”～仲間づくり・議論の技術・考える技術～

    Organizer：Undergraduate school department

  • 2012.8   Role：Participation   Title：科研費採択にむけて －準備へのヒント－, 科研費申請書類の作成について.

    Organizer：Undergraduate school department

  • 2012.2   Role：Participation   Title：企業での育成と育つ人材

    Organizer：Undergraduate school department

Other educational activity and Special note

  • 2004  Special Affairs  学部３年生長期工場見学会引率（２名）

    　詳細を見る

    学部３年生長期工場見学会引率（２名）

Outline of Social Contribution and International Cooperation activities

  • Support of post-doctral researchers for their experimental works, attending SICORP project(JST)

Social Activities

  • 福岡水素エネルギー戦略会議平成28年度製品開発支援事業　液体水素用金属シールの実用化に向けた開発課題の抽出と性能向上に関する研究開発（TOKiエンジニアリング株式会社）共同研究者

    2016

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    福岡水素エネルギー戦略会議平成28年度製品開発支援事業　液体水素用金属シールの実用化に向けた開発課題の抽出と性能向上に関する研究開発（TOKiエンジニアリング株式会社）共同研究者

Travel Abroad

  • 2010.11 - 2011.1

    Staying countory name 1：United States   Staying institution name 1：Argonne Natinal Laboratory

    Staying countory name 2：Other  

  • 2009.4

    Staying countory name 1：United Kingdom   Staying institution name 1：Brunel university