Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Hisao MATSUNAGA Last modified date:2024.04.01

Professor / Hydrogen Utilization Engineering / Department of Mechanical Engineering / Faculty of Engineering


Presentations
1. Masanobu Kubota, Hisao Matsunaga, Toshiyuki Sunaba, Yukinori Yanase, INPEX-Kyushu University joint project on hydrogen embrittlement of natural gas pipeline steels, Hydrogen and Materials Integrity Workshop (SNEAC II), 2023.06.
2. Naoyuki OSADA, Yuya TANAKA, Yasushi SHIMIZU, Hisao MATSUNAGA, Determination mechanism of cycle-dependent fatigue crack acceleration in steels in hydrogen gas environment, Hydrogen and Materials Integrity Workshop (SNEAC II), 2023.06.
3. Hisao Matsunaga, Fatigue crack acceleration in martensitic steels under high-pressure hydrogen, Fatigue Design, 2023.11.
4. Sungcheol Park, Yuya Tanaka, Saburo Okazaki, Hideto Kawashima, Yusuke Funakoshi, Hisao Matsunaga, Inferior fatigue resistance of additively-manufactured Ni-based superalloy 718 and its dominating factor, The 13th International Fatigue Congress (Fatigue 2022+1), 2023.11.
5. Yuya Tanaka, Sungcheol Park, Saburo Okazaki, Hisao Matsunaga, Fatigue Limit Evaluation of Ni-based Superalloy 718, Considering the Competition between Opening- and Shear-mode Fatigue Crack-growth, The 13th International Fatigue Congress (Fatigue 2022+1), 2023.11.
6. Yuya Tanaka, Masahiro Endo, Hisao Matsunaga, Quantitative Evaluation of the Sliding-mode Crack-closure Affecting the Shea-mode Fatigue Crack-growth Threshold in Ni-based Superalloy 718
, The 13th International Fatigue Congress (Fatigue 2022+1), 2023.11.
7. Eric Koren, Roy Johnsen, Dong Wang, Catalina H. M. Hagen, Annette B. Hagen, Bard Nyhus, Antonio Alvaro, Hisao Matsunaga, Can electrochemical charging replace hydrogen gas charging during hydrogen embrittlement testing?, AMPP Annual Conference + Expo 2023, 2023.03.
8. Hisao Matsunaga, Overview of materials for hydrogen service , ASME PVP 2023, 2023.07.
9. Kentaro Okumura, Kojiro Motoyama, Hisao Matsunaga, Fatigue crack growth property of ductile cast iron in hydrogen gas with low oxygen concentrations at various temperatures, ASME PVP 2023, 2023.07.
10. Yuya Tanaka, Naoki Hirakawa, Hisao Matsunaga, Kaneaki Tsuzaki, Akinobu Shibata, Fracture toughness evaluation for an ultra-high strength steel in high-pressure hydrogen environment II: Effect of specimen thickness on fracture toughness
, ASME PVP 2023, 2023.07.
11. Yuya Tanaka, Naoki Hirakawa, Hisao Matsunaga, Kaneaki Tsuzaki, Akinobu Shibata, Fracture Toughness Evaluation for an Ultra-High Strength Steel in High-Pressure Hydrogen Environment I: Establishing the Testing Method for a Thin Plate, ASME PVP 2023, 2023.07.
12. Yuya Tanaka, Naoki Hirakawa, Kaneaki Tsuzaki, Akinobu Shibata, Hisao Matsunaga, Establishing the Fracture Toughness Testing-method for an Ultra-high Strength Steel Sheet in High-pressure Hydrogen Environment, MRM2023/IUMRS-ICA2023, 2023.12.
13. Naoki Hirakawa1, Yuya Tanaka, Kaneaki Tsuzaki, Akinobu Shibata, Hisao Matsunaga, Fracture toughness evaluation of an ultrahigh-strength steel sheet in air and high-pressure hydrogen-gas, MRM2023/IUMRS-ICA2023, 2023.12.
14. Hibiki Okano, Ryosuke Matsumoto, Yasushi Shimizu, Hisao Matsunaga, The mechanism of cycle-dependent fatigue crack acceleration in steels in hydrogen gas environment, MRM2023/IUMRS-ICA2023, 2023.12.
15. Timothee. Redarce, Hisao Matsunaga, Guillaume Lambard, Fatigue Property Prediction by Machine Learning for Low Alloy Steels in a Hydrogen Environment, MRM2023/IUMRS-ICA2023, 2023.12.
16. Hisao Matsunaga, A Digital Transformation Approach to Hydrogen-enhanced Cracking, MRM2023/IUMRS-ICA2023, 2023.12.
17. Sho Hashimoto, Hiroki Komata, Hisao Matsunaga, Quantitative evaluation of the flaking strength of rolling bearing having small defect (Part 1: FEM analyses of stress intensity factor KII under rolling contact), Third International Symposium on Fatigue Design and Material Defects (FDMD3), 2017.09.
18. Hisao Matsunaga, Sho Hashimoto, Hiroki Komata, Quantitative evaluation of the flaking strength of rolling bearing having small defect (Part 2: Evaluation of the flaking strength of rolling bearing having a small drilled hole based on stress intensity factor), Third International Symposium on Fatigue Design and Material Defects (FDMD3), 2017.09.
19. Kentaro Wada, Adeyinka Abass, Saburo Okazaki, Yoshihiro Fukushima, Hisao Matsunaga, Kaneaki Tsuzaki, Fatigue Crack Threshold of Bearing Steel at a Very Low Stress Ratio, Third International Symposium on Fatigue Design and Material Defects (FDMD3), 2017.09.
20. Kentaro Wada, Adeyinka Abass,Saburo Okazaki, Yoshihiro Fukushima, Hisao Matsunaga, Kaneaki Tsuzaki, Small Fatigue Crack Growth Threshold of Bearing Steel under Compressive Mean Stress, Third International Symposium of FATIGUE DESIGN and MATERIAL DEFECTS (FDMD3), 2017.09.
21. Yukitaka MURAKAMI, Hisao MATSUNAGA, Arezou ABYAZI, Yoshihiro FUKUSHIMA, Effect of Defect Size on Fracture Toughness of High Strength Steel in Presence of Hydrogen , The second International Conference on Metals & Hydrogen (Steel & Hydrogen 2014), 2014.05, [URL].
22. Jean-Gabriel Sezgin, Hallvard G. Fjær, Hisao Matsunaga, Junichiro Yamabe, Vigdis Olden, Hydrogen Trapping in X70 Structural Pipeline Steel and Weldments, The Twenty-eighth (2018) International Ocean and Polar Engineering Conference, 2018.06.
23. Hisao MATSUNAGA, Masahiko MAKIZAKI, Darrell F. SOCIE, Keiji YANASE, Masahiro ENDO, Mode I fatigue crack growth with occasional mode II loading in 7075 aluminum alloy, The Tenth International Conference on Multiaxial Fatigue & Fracture (ICMFF10), 2013.06.
24. Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Recent progress in the study on strength properties of metallic materials in high-pressure hydrogen environments, The 8th World Hydrogen Technologies Convention (WHTC2019), 2019.06.
25. Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Recent progress in the study on strength properties of metallic materials in high-pressure hydrogen environments, The 8th World Hydrogen Technologies Convention (WHTC2019), 2019.06.
26. Hisao MATSUNAGA, Hiroki KOMATA, Yamabe Junichiro, Yoshihiro FUKUSHIMA, Saburo MATSUOKA, Effect of Size and Depth of Small Defect on the Rolling Contact Fatigue Strength of Bearing Steel JIS-SUJ2, The 20th European Conference on Fracture (ECF20), 2014.07.
27. Susumu Motomura, Hisao Matsunaga, Junichiro Yamabe, Saburo Matsuoka, Norikazu Osawa, Hydrogen Susceptibility of Austenitic Stainless Steel Pipes Brazed with Ni-30Cr-4Si-6P Filler Metal, The 2017 World Congress on Advances in Structural Engineering and Mechanics (ASEM17), 2017.08.
28. Junichiro Yamabe, Daiki Takagoshi, Hisao Matsunaga, Hiroki Yamada, Hideyuki Uyama, Hydrogen permeation of black oxide-treated and diamond-like carbon –coated bearing steels using high-pressure hydrogen gas, The 2017 World Congress on Advances in Structural Engineering and Mechanics (ASEM17), 2017.08.
29. Junichiro Yamabe, Daiki Takagoshi, Hisao Matsunaga, Hiroki Yamada, Hideyuki Uyama, Hydrogen permeation of black oxide-treated and diamond-like carbon –coated bearing steels using high-pressure hydrogen gas, The 2017 World Congress on Advances in Structural Engineering and Mechanics (ASEM17), 2017.08.
30. Saburo OKAZAKI, Hisao MATSUNAGA, Masahiro ENDO, A Unified Quantitative Evaluation of Small Shear-mode Fatigue Crack Threshold , The 15th IUMRS-ICA (International Union of Materials Research Societies, International Conference in Asia), 2014.08.
31. Mari Åman, Saburo Okazaki, Hisao MATSUNAGA, Gary Marquis, Effect of adjacent small defects on fatigue limit of steels, The 12th International Conference on the Mechanical Behavior of Materials (ICM12), 2015.05, [URL].
32. Saburo Okazaki, Hisao MATSUNAGA, Masahiro Endo, Application of √area parameter for estimation of threshold stress intensity factor range ∆Kτth of small shear-mode cracks, The 12th International Conference on the Mechanical Behavior of Materials (ICM12), 2015.05, [URL].
33. Takashi Matsuo, Kosei Yamada, Hisao MATSUNAGA, Masahiro Endo, Saburo MATSUOKA, The role of graphite in fatigue crack growth of ductile cast iron under the presence of internal and external hydrogen, The 12th International Conference on the Mechanical Behavior of Materials (ICM12), 2015.05, [URL].
34. Saburo Okazaki, Hisao MATSUNAGA, Masahiro Endo, Application of √area parameter for estimation of threshold stress intensity factor range ∆Kτth of small shear-mode cracks, The 12th International Conference on the Mechanical Behavior of Materials (ICM12), 2015.05.
35. , [URL].
36. Yukitaka MURAKAMI, Yamabe Junichiro, Hisao MATSUNAGA, Microscopic Mechanism of Hydrogen Embrittlement in Fatigue and Fracture, Seventh International Conference on Materials Structure & Micromechanics of Fracture (MSMF7), 2013.07.
37. Hisao Matsunaga, Junichiro Yamabe, Saburo Matsuoka, Frequency dependence on hydrogen-enhanced fatigue crack growth in steel, SNEAC Workshop: Environmental Assisted Cracking, 2016.06.
38. Yuhei Ogawa, Hisao Matsunaga, Junichiro Yamabe, Michio Yoshikawa, Saburo Matsuoka, Anomaous fatigue fracture surface of carbon steel JIS-SM490B, SNEAC Workshop: Environmental Assisted Cracking, 2016.06.
39. Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Matsuoka Saburo, Effects of hydrogen on fatigue crack growth in steels, Royal Society Scientific Discussion Meeting, the Challenges of Hydrogen and Metals, 2017.01.
40. Osamu Takakuwa, Hisao Matsunaga, Junichiro Yamabe, Yoshiyuki Furuya, Matsuoka Saburo, Characterizing the degradation of tensile properties for various austenitic stainless steels with external and internal hydrogen, Royal Society Scientific Discussion Meeting, the Challenges of Hydrogen and Metals, 2017.01.
41. Afrooz Barnoush, David Dye, Xavier Feaugas, Hisao Matsunaga, Barbara Shollock, Mechanisms of hydrogen embrittlement in steels: panel discussion, Royal Society Scientific Discussion Meeting, the Challenges of Hydrogen and Metals, 2017.01.
42. Threshold of shear-mode fatigue crack growth in bearing steel
Semi-elliptical shear-mode fatigue cracks were studied in SAE52100 bearing steel loaded with fully-reversed cyclic torsion combined with a static axial compressive stress. Non-propagating cracks smaller than 1 mm in length were obtained in the following two ways; (i) decreasing stress amplitude tests using notched specimens, and (ii) constant stress amplitude tests using smooth specimens. The shape and dimensions of the non-propagating cracks were investigated by a successive polishing of the specimen surface, and the threshold stress intensity factor ranges, δK IIth and δK IIIth, were estimated. The threshold values decreased with a decrease in crack size. There was no significant difference between δK IIth and δK IIIth. Wear on the crack surfaces during crack-growth was inferred by a change in microstructure..
43. K. Wada, J. Yamabe, Y. Ogawa, O. Takakuwa, T. Iijima, H. Matsunag, Fracture and deformation behavior in slow-strain-rate tensile testing of Cu–Ni alloy with internal hydrogen, Pressure Vessels & Piping Conference 2019, 2019.07.
44. Yuhei Ogawa, Osamu Takakuwa, Saburo Okazaki, Saburo Matsuoka, Hisao Matsunaga, Change of crack initiation and propagation modes in hydrogen-related failure of a precipitation-strengthened Ni-based superalloy 718 under internal and external hydrogen conditions, Pressure Vessels & Piping Conference 2019, 2019.07.
45. K. Wada, J. Yamabe, Y. Ogawa, O. Takakuwa, T. Iijima, H. Matsunag, Fracture and deformation behavior in slow-strain-rate tensile testing of Cu–Ni alloy with internal hydrogen, Pressure Vessels & Piping Conference 2019, 2019.07.
46. Yuhei Ogawa, Osamu Takakuwa, Saburo Okazaki, Saburo Matsuoka, Hisao Matsunaga, Change of crack initiation and propagation modes in hydrogen-related failure of a precipitation-strengthened Ni-based superalloy 718 under internal and external hydrogen conditions, Pressure Vessels & Piping Conference 2019, 2019.07.
47. Hisao MATSUNAGA, Yamabe Junichiro, Saburo MATSUOKA, Tensile and fatigue behavior of steels in high pressure hydrogen gas atmospheres, Plenary Lecture, The 12th International Conference on the Mechanical Behavior of Materials (ICM12), 2015.05.
48. Hisao MATSUNAGA, Yamabe Junichiro, Saburo MATSUOKA, Fatigue Characteristics of Steels in Presence of Hydrogen, MATHRYCE FINAL DISSEMINATION WORKSHOP, 2015.09.
49. Yamabe Junichiro, Hisao MATSUNAGA, Saburo MATSUOKA, Proposal of fatigue-design method for steels in high-pressure gaseous hydrogen, MATHRYCE FINAL DISSEMINATION WORKSHOP, 2015.09.
50. Hisao Matsunaga, Recent activities of HYDROGENIUS and the contribution to industry, Joint HYDROGENIUS and I2CNER International Workshop onHydrogen-Materials Interactions 2016, 2016.02.
51. Junichiro Yamabe, Hisao Matsunaga, Matsuoka Saburo, Breakthrough against the NASA database in hydrogen compatibility of metallic materials, Joint HYDROGENIUS and I2CNER International Workshop on Hydrogen-Materials Interactions 2017, 2017.02.
52. Osamu Takakuwa, Junichiro Yamabe, Hisao Matsunaga, Matsuoka Saburo, Comprehensive understanding for ductility loss of various austenitic stainless steels with external and internal hydrogen, Joint HYDROGENIUS and I2CNER International Workshop on Hydrogen-Materials Interactions 2017, 2017.02.
53. Hisao Matsunaga, Junichiro Yamabe, Saburo Matsuoka, Strength properties of steels in high-pressure hydrogen gas and strength design of components, Japan-Norway Energy Science Week 2015, 2015.05.
54. Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Recent activities for hydrogen compatibility of materials used in hydrogen stations in Japan, International workshop on standards and codes for hydrogen infrastructure safety, 2018.11.
55. Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Recent activities for hydrogen compatibility of materials used in hydrogen stations in Japan, International workshop on standards and codes for hydrogen infrastructure safety, 2018.11.
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57. Teruki USUDA, Hisao MATSUNAGA, Keiji YANASE, Masahiro ENDO, Effect of Internal Hydrogen on Ductility Loss in Ductile Cast Irons, International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS (THERMEC’2013), 2013.12.
58. Takumi SAITO, Saburo OKAZAKI, Masahiro ENDO, Shigeaki MORIYAMA, Keiji YANASE, Hisao MATSUNAGA, A Cyclic Ring-on-ring Contact Testing, International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS (THERMEC’2013), 2013.12.
59. Masahiko MAKIZAKI, Hisao MATSUNAGA, Keiji YANASE, Effect of Occasional Mode II Loading on Mode I Fatigue Crack Growth in Aluminum Alloy, International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS (THERMEC’2013), 2013.12.
60. Hisao Matsunaga, Junichiro Yamabe, Saburo Matsuoka, Strength properties of steels in high-pressure gaseous hydrogen and strength design of components, IEA HIA Hydrogen Safety Task 37 Meeting, 2015.10.
61. Hisao Matsunaga, Junichiro Yamabe, Saburo Matsuoka, Strength design of components used in high-pressure hydrogen gas, I2CNER INTERNATIONAL SYMPOSIUM NORWAY-JAPAN IN HYDROGEN AND FUEL CELL - SATELLITE SYMPOSIUM OF THE JAPAN-NORWAY ENERGY SCIENCE WEEK -, 2015.05.
62. @松永 久生, Hydrogen Compatibility of Metallic Materials and Strength Design of Components, HYDROGENIUS-BAM Joint Hydrogen Symposium, 2021.07.
63. Kentaro Wada, Adeyinka Abass,Saburo Okazaki, Yoshihiro Fukushia,Kaneaki Tsuzaki, Hisao Matsunaga, Development of Crack Closure in Bearing Steel SUJ2 under Low Stress Ratio, HYDROGENIUS, I2CNER & HYDROMATE Joint Research Symposium, 2018.02.
64. Kevinsanny, S. Okazaki, O. Takakuwa, J. Yamabe, H. Matsunaga, S. Matsuoka, M. Takegoshi, H. Sunagawa, T. Kobayashi, K. Okita, Effect of small defects on fatigue limit properties of Ni-based superalloy 718, HYDROGENIUS, I2CNER & HYDROMATE Joint Research Symposium, 2018.02.
65. Yuta Sakata, Saburo Okazaki, Osamu Takakuwa, Junichiro Yamabe, Hisao Matsunaga, Saburo Matsuoka, Masao Takegoshi, Hideo Sunagawa, Teiu Kobayashi, Kouichi Okita, Influence of Hydrogen on Fatigue Strength Properties of Ni-base Superalloy 718, HYDROGENIUS, I2CNER & HYDROMATE Joint Research Symposium, 2018.02.
66. Yuhei Ogawa, Domas Birenis, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Interpretation of hydrogen-assisted fatigue crack propagation in a pure BCC iron based on crack tip plasticity evolution, HYDROGENIUS, I2CNER & HYDROMATE Joint Research Symposium, 2018.02.
67. Yuhei Ogawa, Saburo Okazaki, Osamu Takakuwa, Hisao Matsunaga, Micro-scale observation of fatigue crack wake in metastable austenitic stainless steels with internal and external hydrogen, HYDROGENIUS, I2CNER & HYDROMATE Joint Research Symposium, 2018.02.
68. Susumu Motomura, Hisao Matsunaga, Takashi Hosoda and Kazuya Hashimoto, The mechanism of hydrogen-induced intergranular fracture in precipitation-hardened high manganese austenitic steel, HYDROGENIUS, I2CNER & HYDROMATE Joint Research Symposium, 2018.02.
69. Hirotaka Sano, Yuhei Ogawa, Hisao Matsunaga, Junichiro Yamabe, Saburo Matsuoka, Effect of hydrogen on threshold of short fatigue crack propagation in austenitic stainless , HYDROGENIUS, I2CNER & HYDROMATE Joint Research Symposium, 2018.02.
70. 和田健太郎、山辺純一郎、松永久生, Hydrogen induced ductility-loss accompanied with intergranular fracture in pure Ni and Cu–Ni binary alloy, HYDROGENIUS, I2CNER and HydroMate Joint Research Symposium 2021, 2021.01.
71. 和田健太郎, 山辺純一郎, 松永久生, Hydrogen induced ductility-loss accompanied with intergranular fracture in pure Ni and Cu–Ni binary alloy, HYDROGENIUS, I2CNER and HydroMate Joint Research Symposium 2021, 2021.01.
72. Kevinsanny, Saburo Okazaki, Osamu Takakuwa, Yuhei Ogawa, Koichi Okita, Yusuke Funakoshi, Junichiro Yamabe, Saburo Matsuoka, Hisao Matsunaga , Effect of defects and hydrogen on the fatigue limit of Ni-based superalloy 718
, Fatigue Design 2019, 2019.11.
73. Kevinsanny, Saburo Okazaki, Osamu Takakuwa, Yuhei Ogawa, Koichi Okita, Yusuke Funakoshi, Junichiro Yamabe, Saburo Matsuoka, Hisao Matsunaga, Effect of defects and hydrogen on the fatigue limit of Ni-based superalloy 718, Fatigue Design 2019, 2019.11.
74. Pablo LORENZINO, Saburo OKAZAKI, Hisao MATSUNAGA, Yukitaka MURAKAMI, Effect of orientation of small defects on fatigue limit of steels, FATIGUE DESIGN & MATERIAL DEFECTS, FDMD II – JIP 2014 –, 2014.06, [URL].
75. Hisao Matsunaga, Compatibility of Low Alloy Steels to High-pressure Hydrogen Gas Environment , ExxonMobil Technology and Engineering Company, Hydrogen Research Seminar - CCS & Hydrogen Monthly, 2022.07.
76. Hisao Matsunaga, Compatibility of Low Alloy Steels to High-pressure Hydrogen Gas Environment, ExxonMobil Technology and Engineering Company, Hydrogen Research Seminar - CCS & Hydrogen Monthly, 2022.07.
77. Yuhei OGAWA, Hisao MATSUNAGA, Saburo MATSUOKA, Yamabe Junichiro, Michio Yoshikawa, Fatigue properties of low alloy steel JIS-SCM435 and carbon steel JIS-SM490B in high-pressure hydrogen gas, EUROMAT 2015, 2015.09.
78. Hisao MATSUNAGA, Hiroki KOMATA, Yamabe Junichiro, Saburo MATSUOKA, Effect of hydrogen on shear-mode fatigue crack growth in bearing steel under rolling contact loading, EUROMAT 2015, 2015.09.
79. Masahiro Endo, Hisao Matsunaga, Saburo Okazaki, THRESHOLD CONDITION FOR PROPAGATION OF A SMALL SHEAR-MODE FATIGUE CRACK IN BEARING STEEL: A REVIEW OF PREVIOUS WORKS
, ESIS TC-10 Workshop (Environmentally Assisted Cracking & Hydrogen Embrittlement), 2015.04.
80. Jean-Gabriel Sezgin,Osamu Takakuwa, Hisao Matsunaga, Junichiro Yamabe, Assessment of the contribution of internal pressure to the structural damage in a hydrogen-charged Type 316L austenitic stainless steel during slow strain rate tensile test, ECF22, 2018.08.
81. Haruki Nishida, Hisao Matsunaga, Yuhei Ogawa, The Resistance of Pearlitic Lamellar Structure to Hydrogen-Induced Fatigue Crack Growth Acceleration in Carbon Steels, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
82. Yuhei Ogawa, Osamu Takakuwa, Hisao Matsunaga, Fatigue Crack Growth in Ferritic Microstructure Under the Exposure to Gaseous Hydrogen: An Overview, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
83. Keiichiro Iwata, Yuhei Ogawa, Masami Nakamura, Saburo Okazaki, Osamu Takakuwa, Hisao Matsunaga, Fatigue Crack Growth Retardation After Single Overloading, as an Indicator of Hydrogen-Effect on the Extension of Crack-Tip Plastic-Zone, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
84. Kohei Noguchi, Yuhei Ogawa, Osamu Takakuwa, Hisao Matsunaga, Temperature-Effects on the Internal/external-Hydrogen-Driven Tensile Ductility Loss and Relevant Failure Mechanisms in a Ni-Based Superalloy 718, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
85. Yuhei Ogawa, Masaki Hino, Masami Nakamura, Hisao Matsunaga, Role of Pearlite in Ductility Loss of Carbon Steels Under High-Pressure Hydrogen Gas, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
86. Yuhei Ogawa, Osamu Takakuwa, Hisao Matsunaga, Fatigue Crack Growth in Ferritic Microstructure Under the Exposure to Gaseous Hydrogen: An Overview, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
87. Keiichiro Iwata, Yuhei Ogawa, Masami Nakamura, Saburo Okazaki, Osamu Takakuwa, Hisao Matsunaga, Fatigue Crack Growth Retardation After Single Overloading, as an Indicator of Hydrogen-Effect on the Extension of Crack-Tip Plastic-Zone, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
88. Yuhei Ogawa, Masaki Hino, Masami Nakamura, Hisao Matsunaga, Role of Pearlite in Ductility Loss of Carbon Steels Under High-Pressure Hydrogen Gas, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
89. Kohei Noguchi, Yuhei Ogawa, Osamu Takakuwa, Hisao Matsunaga, Temperature-Effects on the Internal/external-Hydrogen-Driven Tensile Ductility Loss and Relevant Failure Mechanisms in a Ni-Based Superalloy 718, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
90. Haruki Nishida, Hisao Matsunaga, Yuhei Ogawa, The Resistance of Pearlitic Lamellar Structure to Hydrogen-Induced Fatigue Crack Growth Acceleration in Carbon Steels, ASME Pressure Vessels & Piping Conference 2021, 2021.07.
91. Yuhei Ogawa, Dain Kim, Hisao Matsunaga, Saburo Matsuoka , Evaluation of the Compatibility of High-Strength Aluminum Alloy 7075-T6 to High-Pressure Gaseous Hydrogen Environments
, ASME 2018 Pressure Vessels and Piping Conference (PVP2018), 2018.07.
92. Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz and Annett Thøgersen , ASME 2018 Pressure Vessels and Piping Conference (PVP2018)
, ASME 2018 Pressure Vessels and Piping Conference (PVP2018), 2018.07.
93. Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz and Annett Thøgersen, ASME 2018 Pressure Vessels and Piping Conference (PVP2018), ASME 2018 Pressure Vessels and Piping Conference (PVP2018), 2018.07.
94. Yuhei Ogawa, Dain Kim, Hisao Matsunaga, Saburo Matsuoka, Evaluation of the Compatibility of High-Strength Aluminum Alloy 7075-T6 to High-Pressure Gaseous Hydrogen Environments, ASME 2018 Pressure Vessels and Piping Conference (PVP2018), 2018.07.
95. , [URL].
96. Masahiro Endo, Takumi Saito, Shigeaki Moriyama, Saburo Okazaki, Hisao Matsunaga, Friction and wear properties of heat-treated cr-mo steel during reciprocating sliding contact with small relative motion, 4th International Conference on Fracture Fatigue and Wear, FFW 2015, 2015.08.
97. Junichiro Yamabe, Michio Yoshikawa, Hisao Matsunaga, Matsuoka Saburo, Effects of hydrogen pressure, test frequency and test temperature on fatigue crack growth properties of low-carbon steel in gaseous hydrogen, 21th European Conference on Fracture (ECF21), 2016.06.
98. Saburo Okazaki, Hisao Matsunaga, Masami Nakamura,Shigeru Hamada, Saburo Matsuoka, Influence of Hydrogen on Tensile and Fatigue Life Properties of 304/308 Austenitic Stainless Steels Butt Welded Joints, 2018 Pressure Vessels & Piping Conference, 2018.07.
99. Naoaki Nagaishi,Michio Yoshikawa, Saburo Okazaki, Hisao Matsunaga,Junichiro Yamabe, Saburo Matsuoka, Fatigue Life Properties of Circumferentially-Notched Bar of Austenitic Stainless Steel with Various Stress Concentration Factors, 2018 Pressure Vessels & Piping Conference, 2018.07.
100. Chris San Marchi,Junichiro Yamabe, Saburo Matsuoka,Martina Schwarz, Hisao Matsunaga, Stefan Zickler, Hideo Kobayashi, Global Harmonization of Fatigue Life Testing in Gaseous Hydrogen, 2018 Pressure Vessels & Piping Conference, 2018.07.
101. Hideo Kobayashi,Hiroshi Kobayashi,Takeru Sano,Takashi Maeda,Hiroaki Tamura,Ayumu Ishizuka,Mitsuo Kimura, Nobuhiro Yoshikawa,Takashi Iijima,Junichiro Yamabe, Saburo Matsuoka, Hisao Matsunaga, Methods of Material Testing in High-Pressure Hydrogen Environment and Evaluation of Hydrogen Compatibility of Metallic Materials: Current Status in Japan, 2018 Pressure Vessels & Piping Conference, 2018.07.
102. Osamu Takakuwa, Saburo Matsuoka, Saburo Okazaki,Michio Yoshikawa, Junichiro Yamabe, Hisao Matsunaga, Temperature Dependence of Fatigue Crack Growth in Low-Alloy Steel Under Gaseous Hydrogen, 2018 Pressure Vessels & Piping Conference, 2018.07.
103. Yuhei Ogawa, Hisao Matsunaga, Saburo Matsuoka,Dain Kim,, Evaluation of the Compatibility of High-Strength Aluminum Alloy 7075-T6 to High-Pressure Gaseous Hydrogen Environment, 2018 Pressure Vessels & Piping Conference, 2018.07.
104. Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa,Junichiro Yamabe,Annett Thøgersen, Hydrogen-Assisted Fatigue Crack Propagation in a Pure BCC Iron, 2018 Pressure Vessels & Piping Conference, 2018.07.
105. Hajime Fukumoto,Wada Yoru,Hisao Matsunaga,Takeru Sano, Hiroshi Kobayashi, Introduction of Technical Document in Japan for Safe Use of Ground Storage Vessels Made of Low Alloy Steels for Hydrogen Refueling Stations, 2018 Pressure Vessels & Piping Conference, 2018.07.
106. Yuhei Ogawa, Junichiro Yamabe, Hisao Matsunaga, Matsuoka Saburo, Excellent Resistance to Hydrogen Embrittlement of High-strength Copper-Based Alloy, 2017 Pressure Vessels & Piping Conference, 2017.07.
107. Saburo Okazaki, Hisao Matsunaga, Shigeru Hamada, Masami Nakamura, Hisatake Itoga, Matsuoka Saburo, A case study on cooling pipe of pre-cooler utilized for demonstration project of 70 MPa hydrogen station, 2017 Pressure Vessels & Piping Conference, 2017.07.
108. Nagaishi Naoaki, Michio Yoshikawa, Saburo Okazaki, Hisao Matsunaga, Junichiro Yamabe, Matsuoka Saburo, Fatigue Life Properties of Circumferentially-notched Austenitic Stainless Steel Type 304 in Hydrogen Gas, 2017 Pressure Vessels & Piping Conference, 2017.07.
109. Osamu Takakuwa, Junichiro Yamabe, Hisao Matsunaga, Yoshiyuki Furuya, Matsuoka Saburo, Recent Progress on Interpretation of Tensile Ductility Loss for Various Austenitic Stainless Steels with External and Internal Hydrogen, 2017 Pressure Vessels & Piping Conference, 2017.07.
110. Yuhei Ogawa, Hisao Matsunaga, Michio Yoshikawa, Junichiro Yamabe, Matsuoka Saburo, FATIGUE LIFE PROPERTIES AND ANOMALOUS MACROSCOPIC FATIGUE FRACTURE SURFACES OF LOW CARBON STEEL JISSM490B IN HIGH-PRESSURE HYDROGEN GAS ENVIRONMENT, 2016 Pressure Vessels & Piping Conference, 2016.07.
111. Hisao Matsunaga, Takuya Nakashima, Kosei Yamada, Takashi Matsuo, Junichiro Yamabe, EFFECT OF TEST FREQUENCY ON HYDROGEN-ENHANCED FATIGUE CRACK GROWTH IN TYPE 304 STAINLESS STEEL AND DUCTILE CAST IRON, 2016 Pressure Vessels & Piping Conference, 2016.07.
112. Matsuoka Saburo, Junichiro Yamabe, Hisao Matsunaga, MECHANISM OF HYDROGEN-ASSISTED SURFACE CRACK GROWTH OF AUSTENITIC STAINLESS STEELS IN SLOW STRAIN RATE TENSILE TEST, 2016 Pressure Vessels & Piping Conference, 2016.07.
113. Masaki Hino, Hisao Matsunaga, Junichiro Yamabe, Matsuoka Saburo, Surface Cracking in SSRT Test of Carbon Steels in High-Pressure Hydrogen Gas, 2016 International Hydrogen Conference, 2016.09.
114. Yuhei Ogawa, Hisao Matsunaga, Junichiro Yamabe, Michio Yoshikawa, Matsuoka Saburo, S-N Properties and Fatigue Fracture Surfaces of Carbon Steel in 0.7 and 115 MPa Hydrogen Gas Environment, 2016 International Hydrogen Conference, 2016.09.
115. Junichiro Yamabe, Hironori Suzuki, Yuhei Ogawa, Hisao Matsunaga, Matsuoka Saburo, Design and Life Prediction of Cr-Mo Steel Pressure Vessel for Next Generation Fuel-Cell Forklift Truck, 2016 International Hydrogen Conference, 2016.09.
116. Hisao Matsunaga, Saburo Okazaki, Junichiro Yamabe, Yuhei Ogawa, Michio Yoshikawa, Matsuoka Saburo, Effect of Microstructure and Strength Level on Fatigue Life Properties of Low Alloy Steels in High-Pressure Hydrogen Gas, 2016 International Hydrogen Conference, 2016.09.
117. Hisatake ITOGA, Hisao MATSUNAGA, Yamabe Junichiro, Saburo MATSUOKA, Effects of External and Internal Hydrogen on Tensile Properties of Austenitic Stainless Steels Containing Additive Elements, 2015 ASME Pressure Vessels & Piping Conference (PVP2015), 2015.07.
118. Hisao MATSUNAGA, Michio Yoshikawa, Ryota Kondo, Hisatake ITOGA, Yamabe Junichiro, Saburo MATSUOKA, Hydrogen-assisted Cracking of Cr-Mo Steel in Slow Strain Rate Tensile Test with High-pressure Gaseous Hydrogen, 2015 ASME Pressure Vessels & Piping Conference (PVP2015), 2015.07.
119. Yamabe Junichiro, Hisao MATSUNAGA, Yoshiyuki Furuya, Saburo MATSUOKA, On the Material Qualification and Strength Design for Hydrogen Service, 2015 ASME Pressure Vessels & Piping Conference (PVP2015), 2015.07.
120. Hisatake ITOGA, Akihiro Orita, Hisao MATSUNAGA, Saburo MATSUOKA, SSRT AND FATIGUE CRACK GROWTH PROPERTIES OF HIGH-STRENGTH AUSTENITIC STAINLESS STEELS IN HIGH-PRESSURE HYDROGEN GAS, 2014 ASME Pressure Vessels & Piping Conference, 2014.07.
121. Yamabe Junichiro, Hisatake ITOGA, Torhu Awane, Hisao MATSUNAGA, Shigeru Hamada, Saburo MATSUOKA, FATIGUE-LIFE AND LEAK-BEFORE-BREAK ASSESSMENTS OF Cr-Mo STEEL PRESSURE VESSELS WITH HIGH-PRESSURE GASEOUS HYDROGEN, 2014 ASME Pressure Vessels & Piping Conference, 2014.07.
122. Hisao MATSUNAGA, Michio Yoshikawa, Hisatake ITOGA, Yamabe Junichiro, Shigeru Hamada, Saburo MATSUOKA, TENSILE- AND FATIGUE-PROPERTIES OF LOW ALLOY STEEL JIS-SCM435 AND CARBON STEEL JIS-SM490B IN 115 MPA HYDROGEN GAS, 2014 ASME Pressure Vessels & Piping Conference, 2014.07.
123. Masahiro ENDO, Dietmar EIFLER, Frank BALLE, Keiji YANASE, Hisao MATSUNAGA, Small-notch effect in Ti-6Al-4V, 13th International Conference on Fracture (ICF13), 2013.06.
124. Yukitaka MURAKAMI, Hisao MATSUNAGA, Arezou ABYAZI, YOSHIHIRO FUKUSHIMA, Small Crack Effect on Threshold Stress Intensity KTH for High Strength Steel with Internal Hydrogen, 13th International Conference on Fracture (ICF13), 2013.06.
125. Hisao MATSUNAGA, Teruki USUDA, Keiji YANASE, Masahiro ENDO, Ductility loss in Hydrogen-charged Ductile Cast Iron, 13th International Conference on Fracture (ICF13), 2013.06.
126. Yuhei Ogawa, Domas Birenis, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen, Hydrogen-assisted fatigue crack propagation in a pure BCC iron. Part I: intergranular crack propagation at relatively low stress intensities, 12th International Fatigue Congress (Fatigue 2018), 2018.05, [URL].
127. Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen, Hydrogen-assisted fatigue crack propagation in a pure BCC iron. Part II: accelerated regime manifested by
quasi-cleavage fracture at relatively high stress intensity range values, 12th International Fatigue Congress (Fatigue 2018), 2018.05, [URL].
128. Kentaro Wada, Soma Yoshimura, Tomoko Yamamoto, Yoshihiro Ohkomori, Hisao Matsunaga, Shear-mode Crack Initiation Behavior in the Martensitic and Bainitic Microstructures, 12th International Fatigue Congress (Fatigue 2018), 2018.05, [URL].
129. Kentaro Wada,Soma Yoshimura, Tomoko Yamamoto, Yoshihiro Ohkomori, Hisao Matsunaga, Shear-mode Crack Initiation Behavior in the Martensitic and Bainitic Microstructures, 12th International Fatigue Congress, 2018.05.
130. Yuhei Ogawa, Domas Birenis, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen , Hydrogen-assisted fatigue crack propagation in a pure BCC iron. Part I: Intergranular crack propagation at relatively low stress intensities
, 12th International Fatigue Congress (FATIGUE 2018), 2018.05.
131. Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen , Hydrogen-assisted fatigue crack propagation in a pure BCC iron. Part II: Accelerated regime manifested by quasi-cleavage fracture at relatively high stress intensity range values
, 12th International Fatigue Congress (FATIGUE 2018), 2018.05.
132. Mari Aman, Kentaro Wada, Hisao Matsunaga, Heikki Remes, Gary Marquis, The effect of interacting small defects on the fatigue limit of a mild- and low-strength pure iron, 12th International Fatigue Congress (FATIGUE 2018), 2018.05.
133. Yuhei Ogawa, Domas Birenis, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen, Hydrogen-assisted fatigue crack propagation in a pure BCC iron. Part I: Intergranular crack propagation at relatively low stress intensities, 12th International Fatigue Congress (FATIGUE 2018), 2018.05.
134. Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen, Hydrogen-assisted fatigue crack propagation in a pure BCC iron. Part II: Accelerated regime manifested by quasi-cleavage fracture at relatively high stress intensity range values, 12th International Fatigue Congress (FATIGUE 2018), 2018.05.
135. Mari Aman, Kentaro Wada, Hisao Matsunaga, Heikki Remes, Gary Marquis, The effect of interacting small defects on the fatigue limit of a mild- and low-strength pure iron, 12th International Fatigue Congress (FATIGUE 2018), 2018.05.
136. Hisao Matsunaga, Chengqi Sun, Youshi Hong, Yukitaka Murakami, Dominant Factors for Very High Cycle Fatigue of High Strength Steels, The Sixth International Conference on Very High Cycle Fatigue (VHCF-6), 2014.10, [URL].
137. Matsuoka Saburo, Junichiro Yamabe, Hisao Matsunaga, Understanding the mechanism of hydrogen embrittlement of austenitic stainless steels-mechanism of hydrogen-assisted surface crack growth in slow strain rate tensile (SSRT) testing, 8th International Conference on Materials Structure & Micromechanics of Fracture (MSMF8), 2016.06.