Kyushu University Academic Staff Educational and Research Activities Database
List of Papers
Hideharu Nakashima Last modified date:2020.01.06

Professor / Structural Material Science / Department of Advanced Materials Science and Engineering / Faculty of Engineering Sciences


Papers
1. Shigeto Yamasaki, Tomo Okuhira, Masatoshi Mitsuhara, Hideharu Nakashima, Jun Kusui, Mitsuru Adachi, Effect of Fe addition on heat-resistant aluminum alloys produced by selective laser melting, Metals, 10.3390/met9040468, 9, 4, 2019.04, The effect of Fe addition on the high-temperature mechanical properties of heat-resistant aluminum alloys produced by selective laser melting (SLM) was investigated in relation to the alloy microstructures. Fe is generally detrimental to the properties of cast aluminum alloys; however, we found that Fe-containing alloys produced by SLM had improved high-temperature strength and good ductility. Microstructural observations revealed that the increase in the high-temperature strength of the alloys was due to the dispersion of fine rod-shaped Fe-Si-Ni particles unique to the SLM material instead of the cell-like structure of eutectic Si..
2. Kazuki Tonotsuka, Yoshikazu Todaka, Nozomu Adachi, Motohiro Horii, Kenichi Toda, Masatoshi Mitsuhara, Masumi Iwasaki, Yoshinori Shiihara, Yoshitaka Umeno, Minoru Nishida, Hideharu Nakashima, Effect of lattice defects on tribological behavior for high friction coefficient under TCP added PAO lubrication in nanostructured steels, Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 10.2355/tetsutohagane.TETSU-2018-043, 105, 2, 160-167, 2019.02, Synopsis: The effect of lattice defects on the tribological behavior for high friction coefficient under tricresyl phosphate (TCP) added poly-α-olefin (PAO) lubrication was investigated in the nanostructured steels produced by heavy plastic deformation processes. In the surface-nanostructured SUJ2 bearing steel, the tribological behavior with high friction coefficient was observed in the ball-on-disk tests in comparison with the non-deformed steel. In addition, the similar phenomenon was observed in the ultra-low carbon (ULC) steel with high-density of lattice defects (grain boundary, dislocation and so on). By increasing the density of lattice defects, higher friction coefficient was shown. The reason of the tribo-logical behavior with high friction coefficient seems that the compound film of Fe-O-P system formed in the ball-on-disk test was worn..
3. Ken Takata, Kohsaku Ushioda, Kenji Kaneko, Ryutaro Akiyoshi, Ken ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Solid solution hardening in supersaturated AlMgSi alloy, Materials Transactions, 10.2320/matertrans.MT-M2019190, 60, 12, 2525-2529, 2019.01, The yield strength and work hardening of AlMgSi alloys are related to the concentration of solute atoms. This study was carried out to clarify the effect of two kinds of solute atoms on these properties in terms of a linear combination of contributions from a solid solution. Tensile tests were conducted with Al and with Al0.62Mg0.32Si, Al0.65Mg0.81Si, Al2.4Mg, and Al4.4Mg (mass%) alloys in solid solution. Work hardening was analyzed using the KocksMecking model, yielding two parameters which indicate the storage and recovery of dislocations in the material. The yield strength could not be expressed as a linear combination of solute atom concentrations, but the amount of dislocation storage and dynamic recovery could be expressed as such linear combinations. In the high-strain region, the KocksMecking model no longer applies, and the maximum stress at which the model failed increased with increasing concentrations of solute atoms. It is generally known that an interaction between strain fields around solute atoms and quenched-in vacancies can affect the yield strength owing to dislocation motion and that these atoms can retard the development of microstructures in high-strain regions. A linear combination of contributions from solid solutions is possible only for the storage and recovery of dislocations in the low-strain region..
4. Solid Solution Hardening in Supersaturated Al-Mg-Si Alloy.
5. Yusuke Shimada, Satoshi Hata, Ken ichi Ikeda, Hideharu Nakashima, Akiyoshi Matsumoto, Kazumasa Togano, Hiroaki Kumakura, Infiltration behavior of molten Mg and its influence on microstructural evolution in SiC-doped MgB2 wires prepared by internal Mg diffusion process, Journal of Alloys and Compounds, 10.1016/j.jallcom.2018.01.012, 740, 305-311, 2018.04.
6. Ken Ichi Ikeda, Takuya Takashita, Ryutaro Akiyoshi, Satoshi Hata, Hideharu Nakashima, Kazuhiro Yamada, Kenji Kaneko, Effects of scandium and zirconium addition on recrystallization behavior of AlMgSi alloy, Materials Transactions, 10.2320/matertrans.L-M2018802, 59, 4, 590-597, 2018.01.
7. Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Development of high-chromium ferritic heat-resistant steels with high nitrogen content, isij international, 10.2355/isijinternational.ISIJINT-2017-758, 58, 6, 1146-1154, 2018.01, New ferritic heat-resistant steels with high nitrogen content were prototyped and their microstructures and mechanical properties at high temperature were evaluated. The addition of 0.3 mass% N into ferritic steels was achieved without the formation of blowholes by applying pressurized melting methods under an atmosphere of up to 4.0 MPa. The high-nitrogen ferritic heat-resistant steels contained several kinds of nitrides within the lath martensitic structure. V-rich coarse particles were identified as crystallized MN. Fine VN or Cr
2
N particles were precipitated on the martensitic grain boundaries such as prior-austenite grain boundary, packet boundary, block boundary and lath boundary depending on the V content. The martensitic structure of the high-nitrogen steels contained a hierarchical microstructure including martensitic laths, blocks, packets, and prior-austenitic grains. These martensitic structures satisfied the Kurdjumov–Sachs relationship as with conventional carbon steel. The creep strengths of the prototyped steels were comparable with those of Gr. 91 steel, albeit lower than those of Gr. 92. Additional precipitates other than nitrides are required for further strengthening of the developed steels..
8. Ken Takata, Kohsaku Ushioda, Kenji Kaneko, Ryutaro Akiyoshi, Ken Ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Solid solution hardening in supersaturated Al-Mg-Si alloy, Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, 10.2320/jinstmet.J2018015, 82, 8, 314-318, 2018.01, The yield strength and work hardening of Al.Mg.Si alloys are related to the concentration of solute atoms. This study was carried out to clarify the effect of two kinds of solute atoms on these properties in terms of a linear combination of contributions from a solid solution. Tensile tests were conducted with Al and with Al.0.62Mg-0.32Si, Al.0.65Mg.0.81Si, Al.2.4Mg and Al.4.4Mg (mass%) alloys in solid solution. Work hardening was analysed using the Kocks .Mecking model, yielding two parameters which indicate the storage and recovery of dislocations in the material. The yield strength could not be expressed as a linear combination of solute atom concentrations, but the amount of dislocation storage and dynamic recovery could be expressed as such linear combinations. In the high.strain region, the Kocks .Mecking model no longer applies, and the maximum stress at which the model failed increased with increasing concentrations of solute atoms. It is generally known that an interaction between strain fields around solute atoms and quenched.in vacancies can affect the yield strength owing to dislocation motion and that these atoms can retard the development of microstructure in high.strain regions. A linear combination of contributions from solid solutions is possible only for the storage and recovery of dislocations in the low.strain region..
9. Masayuki Takano, Keiji Kuroda, Kohei Hase, Shuuto Tanaka, Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Effect of Bi or Sb addition on high temperature deformation behavior in Sn-Cu-Ni solder alloys, Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, 10.2320/jinstmet.J2017025, 81, 11, 502-509, 2017.09.
10. D. Hirakami, K. Ushioda, T. Manabe, K. Noguchi, K. Takai, Y. Hata, Satoshi Hata, Hideharu Nakashima, Change in the microstructure and mechanical properties of drawn pearlitic steel with low-temperature aging, 38th Riso International Symposium on Materials Science IOP Conference Series: Materials Science and Engineering, 10.1088/1757-899X/219/1/012026, 219, 1, 2017.08, Hydrogen embrittlement is a serious problem in high-strength steels. Drawn pearlitic steel shows excellent resistance to hydrogen embrittlement despite its high strength, and aging treatment at a low temperature can simultaneously improve its strength and hydrogen-embrittlement resistance. To clarify the mechanism for this we have used thermal desorption analysis (TDA) and the newly developed precession electron diffraction analysis method in the transmission electron microscope. After aging at 100 °C for 10 min, the amount of hydrogen seen amount on the TDA curve reduced at around 100 °C. In contrast, when aging was performed at 300 °C, the hydrogen amount further reduced at around 100 °C and the unevenly deformed lamellar ferrite zone was locally recovered. For the samples that were aged at the low temperature, we confirmed that their yield strength and relaxation stress ratios increased simultaneously with improvement in the hydrogen-embrittlement property. We infer that segregation of carbon or formation of very fine carbide in dislocations during aging is the cause of these behaviors..
11. Takanori Ito, Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Minoru Nishida, Mitsuharu Yonemura, Microstructure and creep property in polycrystalline Ni-based alloy with intergranular intermetallics, Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 10.2355/tetsutohagane.TETSU-2016-107, 103, 7, 434-442, 2017.07.
12. Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Mitsuharu Yonemura, Evaluation of local creep strain in face-centred cubic heatresistant alloys using electron backscattered diffraction analysis, ISIJ International, 10.2355/isijinternational.ISIJINT-2016-712, 57, 5, 851-856, 2017.05.
13. Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Deformation microstructure and fracture behavior in creep-exposed Alloy 617, Materials Transactions, 10.2320/matertrans.M2016407, 58, 3, 442-449, 2017.03.
14. Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Development of high-chromium ferritic heat-resistant steels with high-nitrogen addition, Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 10.2355/tetsutohagane.TETSU-2016-057, 103, 1, 64-72, 2017.01.
15. Masayuki Takano, Keiji Kuroda, Kohei Hase, Shuuto Tanaka, Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima, Effect of Cu and Ni addition on high temperature deformation behavior in Sn-Cu-Ni solder alloys, Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, 10.2320/jinstmet.J2016069, 81, 7, 337-344, 2017.01.
16. Wan song Li, Hong ye Gao, Hideharu Nakashima, Satoshi Hata, Wen huai Tian, In-situ EBSD study of deformation behavior of retained austenite in a low-carbon quenching and partitioning steel via uniaxial tensile tests, Materials Characterization, 10.1016/j.matchar.2016.06.020, 118, 431-437, 2016.08, 先進炭素鋼を変形させた際の微細組織変化を電子顕微鏡内のその場観察により明らかにした。.
17. Wan song Li, Hong ye Gao, Hideharu Nakashima, Satoshi Hata, Wen huai Tian, Microstructural evolution and mechanical properties of a low-carbon quenching and partitioning steel after partial and full austenitization, International Journal of Minerals, Metallurgy and Materials, 10.1007/s12613-016-1306-0, 23, 8, 906-919, 2016.08.
18. Jun jie SHEN, Ken ichi IKEDA, Satoshi Hata, Hideharu Nakashima, Primary-transient creep and anelastic backflow of pure copper deformed at low temperatures and ultra-low strain rates, Transactions of Nonferrous Metals Society of China, 10.1016/S1003-6326(16)64285-1, 26, 7, 1729-1735, 2016.07.
19. D. HIRAKAMI, T. MANABE, K. USHIODA, K. NOGUCHI, K. TAKAI, Y. HATA, S. HATA, H. NAKASHIMA, Effect of Aging Treatment on Hydrogen Embrittlement of Drawn Pearlitic Steel Wire, ISIJ International, 56, 5, 893-898, 2016.05.
20. Daisuke Hirakami, Toshiyuki Manabe, Kohsaku Ushioda, Kei Noguchi, Kenichi Takai, Yoshinori Hata, Satoshi Hata, Hideharu Nakashima, Effect of aging treatment on hydrogen embrittlement of drawn pearlitic steel wire, ISIJ International, 10.2355/isijinternational.ISIJINT-2015-735, 56, 5, 893-898, 2016.05.
21. Nobuo Nakada, Ken Ichi Ikeda, Hiroshi Shuto, Tatsuo Yokoi, Toshihiro Tsuchiyma, Satoshi Hata, Hideharu Nakashima, Setsuo Takaki, Quantification of large deformation with punching in dual phase steel and change of its' microstructure - Part II
Local strain mapping of dual phase steel by a combination technique of electron backscatter diffraction and digital image correlation methods, Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 10.2355/tetsutohagane.TETSU-2015-086, 102, 5, 253-259, 2016.05.
22. M. Mitsuhara, S. Yamasaki, M. Miake, H. Nakashima, M. Nishida, J. Kusumoto, A. Kanaya, Creep strengthening by lath boundaries in 9Cr ferritic heat-resistant steel, Philosophical Magazine Letters, 96, 2, 76-83, 2016.03.
23. W. Li, H. Gao, Z. Li, H. Nakashima, S. Hata, W. Tian, Effect of lower bainite/martensite/retained austenite triplex microstructure on the mechanical properties of a lowcarbon steel with quenching and partitioning process, International Journal of Minerals, Metallurgy, and Materials, 23, 3, 303-313, 2016.02.
24. S. Yamasaki, M. Mitsuhara, S. Hata, H. Nakashima, Multi-dimensional Quantification of Dislocation Substructure by SEM Electron Channeling Contrast Imaging Method, Microscopy, 64, S1, i35, 2015.11.
25. Y. Shimada, S. Hata, A. Matsumoto, H. Kumakura, A. Yamamoto, H. Nakashima, T. J. Konno, Effectiveness of multi-scale observations for polycrystalline superconducting materials, Microscopy, 64, S1, i61, 2015.11.
26. S. Hata, M. Shimizu, K. Ikeda, H. Nakashima, Electron Tomography Observation of Dislocation Morphology near Surfaces of Mo (001) Thin Foils, Microscopy, 64, S1, i13, 2015.11.
27. Y. Shimada, S. Hata, K. Ikeda, H. Nakashima, S. Matsumura, H. Tanaka, A. Yamamoto, J. Shimoyama, K. Kishio, Microstructural connectivity in sintered ex-situ MgB2 bulk superconductors, Journal of Alloys and Compounds, 656, 172-180, 2015.10.
28. Yusuke Shimada, Takato Kajihara, Satoshi Hata, Ken-ichi Ikeda, Hideharu Nakashima, Akiyoshi Matsumoto, Hitoshi Kitaguchi, Toshiya Doi, Microstructural Studies of the Effect of Heat-Treatment on Bi,Pb-2223 Films Prepared by RF Sputtering, IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 25.0, 3.0, 2015.06.
29. Yusuke Shimada, Satoshi Hata, Ken-ichi Ikeda, Hideharu Nakashima, Syo Matsumura, Hiroya Tanaka, Akiyasu Yamamoto, Jun-ichi Shimoyama, Kohji Kishio, Microstructural Characteristics of Ball-Milled Self-Sintered Ex Situ MgB2 Bulks, IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 25.0, 3.0, 2015.06.
30. S. Yamasaki, M. Mitsuhara, K. Ikeda, S. Hata, H. Nakashima, 3D visualization of dislocation arrangement using scanning electron microscope serial sectioning method, Scripta Materialia, 101.0, 80-83, 2015.05.
31. Yoji Miyajima, Shin-ya Komatsu, Masatoshi Mitsuhara, Satoshi Hata, Hideharu nakashima, Nobuhiro Tsuji?, Microstructural change due to isochronal annealing in severely plastic deformed commercial purity aluminium, Philosophical Magazine, 95.0, 11.0, 1139-1149, 2015.03.
32. Hata, Satoshi, Kazuhisa Sato, Mitsuhiro Murayama, Toshihiro Tsuchiyama, Hideharu Nakashima, An Experimental Protocol Development of Three-Dimensional Transmission Electron Microscopy Methods for Ferrous Alloys: Towards Quantitative Microstructural Characterization in Three Dimensions, ISIJ International, 55.0, 3.0, 623-631, 2015.03.
33. H. Gao, K. Ikeda, T. Morikawa, K. Higashida, H. Nakashima, Analysis of kink boundaries in deformed synchronized long-period stacking ordered magnesium alloys, MaterialsLetters, 146, 30-33, 2015.02.
34. Shigeto Yamasaki, Masatoshi Mitsuhara, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Low-Stress Creep Deformation in Long-Term Aged Ferritic Heat-Resistant Steel, Materials Transactions, Vol.55, pp.842-849, 2014.05.
35. P. S. Ghosh, A. Arya, U. D. Kulkarni, G. K. Dey, Satoshi Hata, T. Nakano, K. Hagihara, H. Nakashima, Ab-initio study of long-period superstructures and anti-phase boundaries in Al-rich γ-TiAl (L10) based alloys, Philosophical Magazine, 94.0, 11.0, 1202-1218, 2014.03.
36. Shigeto Yamasaki, Masatoshi Mitsuhara, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Mitsuharu Yonemura, Evaluation of creep strain in austenitic heat-resistant steel by local crystallographic orientation analysis, Proceedings of 6th International 'HIDA' Conference (HIDA-6), S9-3, 2013.12.
37. Hajime Matsuo, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, H. Yamada, C. N. Xu, Phase transformation behavior and pseudoelastic deformation in SrAl2O4, JOURNAL OF ALLOYS AND COMPOUNDS, 10.1016/j.jallcom.2012.04.009, 577, S507-S516, 2013.11.
38. Yusuke Shimada, Yuuki Kubota, Satoshi Hata, Ken-ichi Ikeda, Hideharu Nakashima, Toshiya Doi, Takanori Fujiyoshi, Influences of Microstructure on Critical Current Properties in MgB2/Al Film, IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 10.1109/TASC.2013.2238284, 23, 3, 2013.06.
39. GAO HONGYE, Ken-ichi Ikeda, Tatsuya Morikawa, Kenji Higashida, Hideharu Nakashima, Microstructures of Long-Period Stacking Ordered Phase of Mg-Zn-Y Alloy, MATERIALS TRANSACTIONS, 10.2320/matertrans.MI201219, 54, 5, 632-635, 2013.05.
40. T. Kajihara, Y. Shimada, S. Hata, K. Ikeda, H. Nakashima, A. Matsumoto, T. Mochiku, H. Kitaguchi, T. Doi, Formation of Bi,Pb-2223 and Microstructural evolution in Pb-Ca-Cu deposited Bi-2212(001) single crystal by heat treatment, Physics Procedia, doi: 10.1016/j.phpro.2013.04.054, 45, 69-72, 2013.03.
41. Junjie Shen, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, “Abnormal transient creep” in fine-grained Al-5356 alloy observed at low strain rates by high-resolution strain measurement, Transactions of Nonferrous Metals Society of China, DOI: 10.1016/S1003-6326(13)62585-6, 23, 1209-1214, 2013.03.
42. Junjie Shen, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, A new deformation region and how low do you go? – “intrinsic deformation limit”, Materials Science Forum, 747-748, 559-563, 2013.02.
43. Ryosuke Imamura, Satoshi Hata, Ken-ichi Ikeda, Hideharu Nakashima, Shinji Yamamoto, Toshihiro Tsuchiyama, Akama Daichi, Satoshi Morooka, Mitsuhiro Murayama, Deformation of Cu Precipitates in Cold-Rolled Fe-Cu Alloy, Proc. 14th Cross Straits Symp. Mater. Ener. Environ. Sci. Tech (CSS-EEST14), 81-82, 2013.02.
44. Satoshi Hata, Harini Sosiati, Yusuke Shimada, Akiyoshi Matsumoto, Ken-ichi Ikeda, Hideharu Nakashima, Hitoshi Kitaguchi, Hiroaki Kumakura, Imperfection of microstructural control in MgB2 superconducting tapes fabricated using an in-situ powder-in-tube process: toward practical applications, JOURNAL OF MATERIALS SCIENCE, 10.1007/s10853-012-6901-5, 48, 1, 132-139, 2013.01.
45. Satoshi Hata, Harini Sosiati, Yusuke Shimada, Akiyoshi Matsumoto, Ken-ichi Ikeda, Hideharu Nakashima, Hitoshi Kitaguchi, Hiroaki Kumakura, Imperfection of microstructural control in MgB2 superconducting tapes fabricated using an in-situ powder-in-tube process: toward practical applications, JOURNAL OF MATERIALS SCIENCE, 10.1007/s10853-012-6901-5, 48, 1, 132-139, 2013.01.
46. Shigeto Yamasaki, Masatoshi Mitsuhara, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Creep behavior at ultra-low strain rate in 9% Cr steel studied by helical spring creep test, Proceedings of the 12th International Conference on Creep and Fracture of Engineering Materials and Structures (Creep2012), B33, 2012.10.
47. Ken-ichi Ikeda, Sota Goto, Tomoaki Shibata, Motoki Takasuga, Satoshi Hata, Hideharu Nakashima, Hiroyuki Omura, High temperature deformation behavior of die-cast Mg-Al-Ca-Sn alloys, Proceedings of the 12th International Conference on Creep and Fracture of Engineering Materials and Structures (Creep2012), C43, 2012.10.
48. Shigeto Yamasaki, Masatoshi Mitsuhara, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Low stress creep deformation behavior of ferritic heat-resistant steel subjected to long-term aging, New Methods of Damage and Failure Analysis of Structural Parts, 468-472, 2012.09.
49. Ken-ichi Ikeda, Ryutaro Akiyoshi, Takuya Takashita, Masatoshi Mitsuhara, Satoshi Hata, Hideharu Nakashima, Kazuhiro Yamada, Kenji Kaneko, Precipitation morphology in Al-Mg-Si-Sc-Zr hot-rolled sheet, Proc. of 13th International Conference on Aluminum Alloys (ICAA13), 1181-1185, 2012.06.
50. Ryutaro Akiyoshi, Ken-ichi Ikeda, Mitsuhara Masatoshi, Satoshi Hata, Hideharu Nakashima, Ken Takata, Makoto Saga, Kohsaku Ushioda, Kenji Kaneko, Masao Kikuchi, Precipitation morphology and tensile properties of Al-0.62Mg-0.32Si alloy aged at low temperature, Proc. of 13th International Conference on Aluminum Alloys (ICAA13), 1229-1234, 2012.06.
51. Effect of Nitrogen on Creep Rupture Strength and Toughness After Aging of an Austenitic Heat Resistant Steel.
52. R.Akiyoshi, T.Takashita, K.Ikeda, S.Hata, H.Nakashima, Effect of scandium and zirconium addition on recrystallization behavior of Al-Mg-Si alloy, Proc. 13th Cross Straits Symp. Mater. Ener. Environ. Sci., 203-204, 2011.11.
53. Y.Kamiyama, S.Yamasaki, M.Mitsuhara, K.Ikeda, S.Hata, H.Nakashima, M.Yonemura, Creep property and microstructure of heat-resistant austenitic steels strengthened by intermetallic compounds, Proc. 13th Cross Straits Symp. Mater. Ener. Environ. Sci., 189-190, 2011.11.
54. T.Kajihara, S.Hata, K.Ikeda, H.Nakashima, Texture analysis in polycrystalline SmBa2Cu3Oy superconducting film by hybrid microscopy observation, Proc. 13th Cross Straits Symp. Mater. Ener. Environ. Sci., 165-166, 2011.11.
55. S.Yamasaki, R.Imamura, M.Mitsuhara, K.Ikeda, S.Hata, H.Nakashima, H.Watanabe, A.Kanaya, Assessment of creep degradation in ferritic heat-resistant steel by electron diffraction, Proc. 13th Cross Straits Symp. Mater. Ener. Environ. Sci., 53-54, 2011.11.
56. J.Shen, K.Ikeda, S.Hata, H.Nakashima, Creep Mechanisms in a Fine-Grained Al-5356 Alloy at Low Stress and High Temperature, Mater. Trans., 52, 10, 1890-1898, 2011.10.
57. J.Shen, K.Ikeda, S.Hata, H.Nakashima, Transient Creep in High-Purity Aluminum at Ultra-Low Strain Rate and Room Temperature by Constant Stress and Changing-Stress Experiments, Mater. Trans., 52, 10, 1885-1889, 2011.10.
58. J.Shen, S.Yamasaki, K.Ikeda, S.Hata, H.Nakashima, Low-Temperature Creep at Ultra-Low Strain Rates in Pure Aluminum Studied by a Helicoid Spring Specimen Technique, Mater. Trans., 52, 7, 1381-1387, 2011.07.
59. S.Hata, H.Miyazaki, S.Miyazaki, M.Mitsuhara, M.Tanaka, K Kaneko, K.Higashida, K.Ikeda, H.Nakashima, S.Matsumura, J.S.Barnard, J.H.Sharp, P.A.Midgley, High-angle triple-axis specimen holder for three-dimensional diffraction contrast imaging in transmission electron microscopy, Ultramicroscopy, 111, 8, 1168-1175, 2011.07.
60. J.Shen, K.Ikeda, S.Hata, H.Nakashima, Creep behavior in a fine-grained Al-5356 alloy at low stress and intermediate temperature, 九州大学総理工報告, 33, 1, 1-6, 2011.06.
61. Y.Shimada, Y.Kubota, S.Hata, K.Ikeda, H.Nakashima, A.Matsumoto, K.Togano, J.Hur, H.Kumakura, Microstructure in high-density MgB2 wires prepared by an internal Mg diffusion method, IEEE Transactions on Applied Superconductivity, 21, 3, 2668-2671, 2011.06.
62. Y.Shimada, Y.Kubota, S.Hata, K.Ikeda, H.Nakashima, A.Matsumoto, K.Togano, H.Kumakura, Electron microscopy observation of MgB2 wire prepared by an internal Mg diffusion method, Physica C, 471, 1137-1141, 2011.05.
63. H. Gao, K, Ikeda, S, Hata, H. Nakashima, D. Wang, H. Nakashima, Microstructure and strain distribution in strained freestanding Si membrane, Proc. The 17th International Microscopy Congress, (IMC17), (2010), 2010.09.
64. S. Hata, M. Mitsuhara, M. Tanaka, K. Kaneko, K. Higashida, K. Ikeda, H. Nakashima, T. Daio, S. Matsumura, Development of 3D TEM imaging techniques using diffraction contrast, Proc. The 17th International Microscopy Congress, (IMC17), (2010), 2010.09.
65. M. Mitsuhara, S. Hata, K. Ikeda, H. Nakashima, M. Tanaka, K. Higashida, Three-dimensional evaluation of dislocation arrangements using electron tomography in austenitic steel, Proc. 31st Riso International Symposium on Materials Science: Challenges in materials science and possibilities in 3D and 4D characterization techniques,, 2010.09.
66. K. Ikeda, K. Terada, M. Mitsuhara, S. Hata, H. Nakashima, K. Tanaka, M. Saga, J. Takahashi, K. Ushioda, K. Kaneko, M. Kikuchi, Effects of Clusters and Precipitates on Tensile Properties in Al-Mg-Si Alloys, Proc. The 12th International Conference of Aluminium Alloys, (ICAA12), (2010), 2246-2251, 2010.09.
67. K. Takata, J. Takahashi, M. Saga, K. Ushioda, K. Ikeda, M. Mitsuhara, K. Terada, S. Hata, H. Nakashima, K. Kaneko, M. Kikuch, Analysis of Yield Strength for Isothermal Aged Al-Mg-Si Alloys, Proc. The 12th International Conference of Aluminium Alloys, (ICAA12), (2010), 1179-1183, 2010.09.
68. Yoji Miyajima, Shin-Ya Komatsu, Masatoshi Mitsuhara, Satoshi Hata, Hideharu Nakashima, Nobuhiro Tsuji, Change in electrical resistivity of commercial purity aluminium severely plastic deformed, Philos. Mag., 90(2010), 4475-4488, 2010.09.
69. Hongye Gao, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Dong Wang, Hiroshi Nakashima, Microstructure and strain distribution in freestanding Si membrane strained by SixNy deposition, Mater. Sci. Eng., 527(2010), 6633-6637, 2010.07.
70. Hongye Gao, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Dong Wang, Hiroshi Nakashima, Strain distribution in freestanding Si/SixNy membranes studied by transmission electron microscopy, Thin Solid Films, 518(2010), 6787-6791, 2010.06.
71. S. Hata, H. Sosiati, Y. Shimada, T. Doi, A. Matsumoto, H. Kitaguchi, K. Ikeda, H. Nakashima, Microstructure in MgB2/Ni alternately-layered superconducting film, AMTC Letters, ,2(2010), 268-269, 2010.06.
72. Tomoaki Isobe, Masatoshi Mitsuhara, Ken-ichi Ikeda, Satoshi Hata, Hideharu Nakashima, Yoshikazu Todaka, Minoru Umemoto, Electron Microscopy Observation of Pure Copper Deformed by High Pressure Torsion, Annual Reports of HVEM Laboratory Kyushu University,, pp. 31-32, (2009), 2009.11.
73. S. Yamasaki, M. Mitsuhara, K. Ikeda, S. Hata, H. Nakashima, Evaluation of Low Rate Creep Behavior in Stainless Steel by Herical Spring Creep Test, Proc. 11th Cross Straits Symp. Mater. Ener. Environ. Sci, pp. 114-116, (2009)., 2009.11.
74. Y. Shimada, T. Ohashi, S. Hata, K. Ikeda, H. Nakashima, T. Mochizuki, J. Shimoyama, K. Kishio, Influences of Fabrication Conditions on Superconducting Properties of High- Density MgB2 Bulks, Proc. 11th Cross Straits Symp. Mater. Ener. Environ. Sci, pp. 114-116, (2009)., 2009.11.
75. K. Oshibuchi, M. Mitsuhara, K. Ikeda, S. Hata, H. Nakashima, S. Ohtsuka, Creep Behavior of Oxide Dispersion Strengthened-9Cr Ferritic Steels under High-Temperature and Low-Stresses Conditions, Proc. 11th Cross Straits Symp. Mater. Ener. Environ. Sci, pp. 110-111, (2009)., 2009.11.
76. Yutaka Tsukano, Toshiya Doi, Hiroki Yamashita, Akira Tanaka, Ikumi Iwasaki, Yoshinori Hakuraku, Hitoshi Kitaguchi, Ken-ichiro Takahashi, Harini Sosiati, Satoshi Hata, Ken-ichi Ikeda, Hideharu Nakashima, Fabrication of multilayered MgB2/Ni thin films and their flux pinning properties, IEEE, Transactions on Applied Superconductivity,, 19(3), 2807-2810 (2009)., 2009.05.
77. T.Ishobe, M.Mitsuhara, K.Ikeda, S.Hata, H.Nakashima, Y.Todaka, M.Umemoto, Electron Microscopy Observation of Pure Copper Deformed by High Pressure Torsion, Proceedings of International Symposium on Giant Straining Process for Advanced Materials (GSAM-2008),, (2008), 83-84., 2008.11.
78. J.Yamada, H.Fujiwara, K.Ameyama, S.Hata, H.Nakashima, K.Ikeda, Effects of Cryogenic Mechanical Milling on Microstructure in Metallic Powders, Proceedings of International Symposium on Giant Straining Process for Advanced Materials (GSAM-2008),, (2008), 69, 2008.11.
79. S.Ii, N.Takata, K.Ikeda, H.Nakashima, N.Tsuji, Asymmetric Grain Boundaries Observed in Ultrafine Grained Aluminum by ARB Process, Proceedings of International Symposium on Giant Straining Process for Advanced Materials (GSAM-2008),, (2008), 64-65., 2008.11.
80. H.Nakashima, T.Ishobe, S.Hata, K.Ikeda, T.Shimokawa, Grain Boundary of SPD Material - TEM and MD Structures -, Proceedings of International Symposium on Giant Straining Process for Advanced Materials (GSAM-2008),, (2008), 24-25., 2008.11.
81. M.Mitsuhara, M.Tanaka, K.Ikeda, S.Hata, H.Nakashima, Three-dimensional imaging of dislocations in steel using STEM tomography, Korean Journal of Microscopy, Supplement,, Vol. 38 No. 4 (2008), 223-224., 2008.11.
82. S.Ii, Y.Takaki, K.Ikeda, H.Nakashima, H.Nakashima, Microstructural change of dislocation structure around SiGe/Si interface in SGOI wafer with ramping process, Thin Solid Films,, Vol. 517 (2008), 38-40., 2008.08.
83. S.Ii, M.Hishida, N.Takata, K.Ikeda, H.Nakashima, N.Tsuji, Grain Boundary Structures of ARB Processed Aluminum, Mater. Sci. Forum,, Vol. 584-586 (2008), 716-721., 2008.08.
84. S.Ii, T.Hirota, K.Fujimoto, Y.Sugimoto, N.Takata, K.Ikeda, H.Nakashima, H.Nakashima, Direct Evidence of Polycrystalline Silicon Thin Films Formation during Aluminum Induced Crystallization by In-Situ Heating TEM Observation, Mater. Trans., ., Vol. 49 No. 4 (2008), 723-727, 2008.04.
85. .Ikeda, K.Yamada, N.Takata, F.Yoshida, H.Nakashima, N.Tsuji, Grain Boundary Structure of Ultrafine Grained Pure Copper Fabricated by Accumulative Roll Bonding, Mater. Trans, Vol. 49 No. 1 (2008), 24-30., 2008.01.
86. .Ikeda, K.Yamada, N.Takata, F.Yoshida, H.Nakashima, N.Tsuji, Grain Boundary Structure of Ultrafine Grained Pure Copper Fabricated by Accumulative Roll Bonding, Mater. Trans, Vol. 49 No. 1 (2008), 24-30., 2007.11.
87. M.Mitsuhara, Y.Yoshida, K.Ikeda, H.Nakashima, T.Wakai, Effects of Addition of V and Nb on W in High Cr Ferritic Steels, Mater. Sci. Forum, 2007.11.
88. 波多聰、池田賢一、中島英治、木村耕輔、H.Gao、松村晶、土井稔, Ni-Al-Ti合金におけるγ’粒子の相分離の3次元TEM観察, 耐熱金属材料123委員会研究報告:超合金分科会, 48,2, 2007.06.
89. M.Mitsuhara, Y.Yoshida, K.Ikeda, H.Nakashima, T.Wakai, Effect of Vanadium and Niobium on Creep Strength in 10% Chromium Steel Analyzed by STEM-EDS, Proc. of Creep8 Eighth International Conference on Creep and Fatiue at Elevated Temperatures, CREEP2007-26746, 2007.05.
90. N.Takata, K.Ikeda, H.Nakashima, N.Tsuji, In-situ EBSP Analysis of Grain Boundary Migration during Recrystallization in Pure Aluminum Foils, Mater. Sci. Forum, 558-559,351-356, 2007.04.
91. K.Ikeda, T.Yoshihara, N.Takata, H.Nakashima, Relation between Ridging and Texture Components in Al-Mg-Si Alloy, Mater. Sci. Forum, 558-559,71-76, 2007.04.
92. Y.Sugimoto, H.Adachi, K.Yamamoto, D.Wang, H.Nakashima, H.Nakashima, Electrical characterization of high-k gate dielectrics facricated using plasma oxidation and post-deposition annealing of a Hf/SiO2/Si structure, Materials Science in Semiconductor Processing, 9巻P1031-1036, 2006.11.
93. N. Takata, T. Mizuguchi, K. Ikeda, H. Nakashima, Atomic and Electronic Structure of <110> Symmetric Tilt Boundaries in Palladium, Mater. Trans., 10.2320/matertrans.45.2099, 45, 7, 2099-2105, Vol. 45 (No. 7), pp. 2099-2105, 2004.07.
94. N. Takata, K. Ikeda, F. Yoshida, H. Nakashima, H. Abe, Influence of Purity on the Formation of Cube Texture in Aluminum Foils for Electrolytic Capacitors, Mater. Trans., 10.2320/matertrans.45.1687, 45, 5, 1687-1692, Vol. 45 (No. 5), pp. 1687-1692, 2004.05.
95. N. Tsuji, X. Huang, H. Nakashima, Microstructure of metals and alloys deformed to ultrahigh strains, Proc. of the 25th Riso Int. Symp. on Materials Science, pp. 147-170, 2004.01.
96. K. Ikeda, K. Yamada, N. Takata, F. Yoshida, H. Nakashima, N. Tsuji, Atomic structure of grain boundaries in ARB processed copper, Proc. of the 25th Riso Int. Symp. on Materials Science, pp. 357-362, 2004.01.
97. N. Takata, J. Higashi, K. Ikeda, F. Yoshida, H. Nakashima, Correlation between deformation microstructure and evolution of cube texture in heavily rolled copper, Proc. of the 25th Riso Int. Symp. on Materials Science, pp. 539-544, 2004.01.
98. F. Yoshida, K. Ikeda, N. Takata, H. Nakashima, Deformation substructure control for development of cube texture in aluminum foil for electrolytic capcacitors, Proc. of the 25th Riso Int. Symp. on Materials Science, pp. 571-576, 2004.01.
99. N. Takata, K. Ikeda, F. Yoshida, H. Nakashima, H. Abe, Grain Boundary Structure and its Energy of <110> Symmetric Tilt Boundary in Copper, Mater. Sci. Forum, 467-470, 807-812, Vol. 467-470, pp. 807-812, 2004.01.
100. F. Yoshida, M. Uehara, K. Ikeda, H. Nakashima, H. Abe, Grain Boundary Migration of <110> Tilt Σ11 and Σ27 Boundaries in Pure Aluminum, Mater. Sci. Forum, 467-470, 835-840, Vol. 467-470, pp. 835-840, 2004.01.
101. H. Nakashima, Change in Microstructure of Modified 9Cr-1Mo Martensitic Steel during Creep Deformation, Proc. of FAILURES2004, pp. 203-210, 2004.01.
102. L. Zhao, N. H. Luu, D. Wang, Y. Sugimoto, K. Ikeda, H. Nakashima, H. Nakashima, Low-Temperature Growth of Thin Silicon Nitride Film by Electron Cyclotron Resonance Plasma Irradiation, Jpn. J. Appl. Phys., 10.1143/JJAP.43.L47, 43, 1A-B, L47-L49, Vol. 43 (No. 1A/B), pp. L47-L49, 2004.01.
103. M.Tanaka, K.Higashida, H.Nakashima, H.Takagi, M.Fujiwara, Fracture Toughness Evaluated by Indentation Methods and Its Relation to Surface Energy in Silicon Single Crystals, Mater. Trans., 10.2320/matertrans.44.681, 44, 4, 681-684, 2003.04.
104. K.Kawahara, S.Tsurekawa, H.Nakashima, Effect of Boron and Carbon Addition on High Temperature Deformation Behavior of β-Silicon Carbide, Mater. Sci. Forum, 304-3, 519-524, 1998.01.
105. K.Morita, H.Nakashima, Atomic Periodicity of <001> Symmetric Tilt Boundary in Molybdenum, Mater. Sci. Eng., 10.1016/S0921-5093(97)00306-7, 234, 1053-1056, 1997.01.
106. H.Nakashima, M.Watase, H.Yoshinaga, Reliability of Experimental Values for Work-Hardening and Recovery Rates in Pure Aluminum during High-Temperature Deformation, Mater. Trans., JIM, 27, 2, 122-133, 1986.02.
107. N. H. Luu, L. Zhao, D. Wang, Y. Sugimoto, K. Ikeda, H. Nakashima, H. Nakashima, Optimization of Ar-diluted N2 electron cyclotron resonance plasma for high-quality SiN film growth at low temperature, 九大総理工報告, Vol. 26 (No. 1), pp. 1-8.