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研究成果 1994 2019

2019

A new diffraction line profile breadth analysis approach for evaluating plastic lattice strain anisotropy in cold-worked nickel under various strain paths

Jiang, F., Masumura, T., Hirata, K., Tsuchiyma, T. & Takaki, S., 1 1 2019, : : International Journal of Plasticity. 112, p. 89-107 19 p.

研究成果: ジャーナルへの寄稿記事

Nickel
Anisotropy
Diffraction
Plastics
Cold working

Comparison of microstructure and hardness between high-carbon and high-nitrogen martensites

Tsuchiyma, T., Inoue, K., Hyodo, K., Akama, D., Nakada, N., Takaki, S. & Koyano, T., 1 1 2019, : : isij international. 59, p. 161-168 8 p.

研究成果: ジャーナルへの寄稿記事

Martensite
Nitrogen
Carbon
Hardness
Microstructure
公開
Iron
iron
Ferritic steel
Crystallite size
Textures

Difference in local deformation and ductile fracture behaviors between hard VC and soft Cu particle dispersion ferritic steels

Tsuchiyma, T., Koga, M., Shimoji, I., Hirabayashi, S. & Masumura, T., 2 1 2019, : : Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 105, 2, p. 60-67 8 p.

研究成果: ジャーナルへの寄稿記事

公開
Ductile fracture
Steel
Ferritic steel
steels
Plastic deformation
1 引用 (Scopus)

Dislocation characterization by the direct-fitting/modified Williamson–Hall (DF/mWH) method in cold worked ferritic steel

Takaki, S., Masumura, T. & Tsuchiyma, T., 3 1 2019, : : isij international. 59, 3, p. 567-572 6 p.

研究成果: ジャーナルへの寄稿記事

Ferritic steel
Anisotropy
Diffraction
Cold rolling
Full width at half maximum

Effect of grain boundary segregation of carbon on critical grain boundary strength of ferritic steel

Araki, S., Mashima, K., Masumura, T., Tsuchiyma, T., Takaki, S. & Ohmura, T., 8 1 2019, : : Scripta Materialia. 169, p. 38-41 4 p.

研究成果: ジャーナルへの寄稿記事

Ferritic steel
Grain boundaries
Carbon
grain boundaries
steels
4 引用 (Scopus)

Effect of nitrogen-addition on the absorption and diffusivity of hydrogen in a stable austenitic stainless steel

Macadre, A., Masumura, T., Manabe, R., Tsuchiyma, T. & Takaki, S., 1 8 2019, : : International Journal of Hydrogen Energy. 44, 2, p. 1263-1271 9 p.

研究成果: ジャーナルへの寄稿記事

austenitic stainless steels
Austenitic stainless steel
diffusivity
Nitrogen
nitrogen
2018
8 引用 (Scopus)

Correction of elastic anisotropy in williamson-hall plots by diffraction young's modulus and direct fitting method

Takaki, S., Jiang, F., Masumura, T. & Tsuchiyma, T., 1 1 2018, : : isij international. 58, 4, p. 769-775 7 p.

研究成果: ジャーナルへの寄稿評論記事

Anisotropy
Diffraction
Elastic moduli
Iron
Yield stress
1 引用 (Scopus)

Correction of the Williamson-Hall plots by the diffraction Young's modulus

Takaki, S., Akama, D., Jiang, F. & Tsuchiyma, T., 3 1 2018, : : Zairyo/Journal of the Society of Materials Science, Japan. 67, 3, p. 383-388 6 p.

研究成果: ジャーナルへの寄稿記事

modulus of elasticity
Diffraction
Elastic moduli
plots
elastic anisotropy
2 引用 (Scopus)

Difference between carbon and nitrogen in thermal stability of metastable 18%Cr-8%Ni austenite

Masumura, T., Tsuchiyma, T., Takaki, S., Koyano, T. & Adachi, K., 9 1 2018, : : Scripta Materialia. 154, p. 8-11 4 p.

研究成果: ジャーナルへの寄稿記事

austenite
Austenite
Thermodynamic stability
thermal stability
Nitrogen

Discussion about procedure for determining parameter α in Modified Williamson-Hall method

Masumura, T., Takaki, S., Jiang, F. & Tsuchiyma, T., 11 1 2018, : : Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 104, 11, p. 717-719 3 p.

研究成果: ジャーナルへの寄稿記事

Crystallite size
routes
approximation
2 引用 (Scopus)
Stress Concentration
Comparative Study
Stress concentration
Steel
Crack
3 引用 (Scopus)

Effect of grain size on the yield stress of cold worked iron

Tanaka, Y., Takaki, S., Tsuchiyma, T. & Uemori, R., 5 1 2018, : : Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 104, 5, p. 284-291 8 p.

研究成果: ジャーナルへの寄稿記事

Yield stress
Ferrite
Iron
grain size
Plastic flow
2 引用 (Scopus)

Effect of grain size on the yield stress of cold worked iron

Tanaka, Y., Takaki, S., Tsuchiyma, T. & Uemori, R., 10 1 2018, : : isij international. 58, 10, p. 1927-1933 7 p.

研究成果: ジャーナルへの寄稿記事

Yield stress
Ferrite
Iron
Plastic flow
Strengthening (metal)

Effect of instrumental correction on X-ray line profile analysis in cold rolled ferritic steel

Takaki, S., Masumura, T., Jiang, F. & Tsuchiyma, T., 1 1 2018, : : isij international. 58, 6, p. 1181-1183 3 p.

研究成果: ジャーナルへの寄稿記事

Ferritic steel
X rays
Carbon steel
1 引用 (Scopus)

Effect of low temperature aging on hall-petch coefficient in ferritic steels containing a small amount of carbon and nitrogen

Araki, S., Fujii, K., Akama, D., Tsuchiyma, T., Takaki, S., Ohmura, T. & Takahashi, J., 10 1 2018, : : isij international. 58, 10, p. 1920-1926 7 p.

研究成果: ジャーナルへの寄稿記事

Ferritic steel
Nitrogen
Carbon
Aging of materials
Grain boundaries
6 引用 (Scopus)

Effect of the surface layer strained by mechanical grinding on x-ray diffraction analysis

Jiang, F., Hirata, K., Masumura, T., Tsuchiyma, T. & Takaki, S., 1 1 2018, : : isij international. 58, 2, p. 376-378 3 p.

研究成果: ジャーナルへの寄稿記事

Sanders
Steel
Full width at half maximum
X ray diffraction analysis
Diffraction
2 引用 (Scopus)

Evaluation of dislocation density in cold worked low carbon ferritic steel

Takaki, S., Masumura, T., Jiang, F. & Tsuchiyma, T., 11 1 2018, : : Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 104, 11, p. 683-688 6 p.

研究成果: ジャーナルへの寄稿記事

Cold rolling
Ferritic steel
cold rolling
Carbon steel
steels
2 引用 (Scopus)

Proposal of simplified modified Williamson-Hall equation

Takaki, S., Masumura, T. & Tsuchiyma, T., 12 1 2018, : : isij international. 58, 12, p. 2354-2356 3 p.

研究成果: ジャーナルへの寄稿記事

Diffraction
Anisotropy
Crystallite size
Martensite
Austenite
2 引用 (Scopus)

Relation between diffraction young's modulus ratio and elastic anisotropy in metals

Takaki, S., Masumura, T., Jiang, F. & Tsuchiyma, T., 9 1 2018, : : Zairyo/Journal of the Society of Materials Science, Japan. 67, 9, p. 855-860 6 p.

研究成果: ジャーナルへの寄稿記事

elastic anisotropy
modulus of elasticity
Anisotropy
Diffraction
Elastic moduli
1 引用 (Scopus)

Theoretical discussion of dislocation strengthening in cold rolled iron

Takaki, S. & Tsuchiyma, T., 1 1 2018, : : Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 104, 2, p. 117-120 4 p.

研究成果: ジャーナルへの寄稿記事

Strengthening (metal)
Iron
iron
Metals
Composite materials
4 引用 (Scopus)
Crack tips
Visualization
Steel
Imaging techniques
Electrons

九州大学大学院 工学研究院材料工学部門 材料加工工学大講座

田中將己 & 土山聡宏, 2018, まてりあ, 57, 3, p. 123-123 1 p.

研究成果: 専門家出版物への寄稿タイプ レター

2017
5 引用 (Scopus)

Effect of low temperature aging on hall-petch coefficient in ferritic steels containing a small amount of carbon and nitrogen

Araki, S., Fujii, K., Akama, D., Tsuchiyma, T., Takaki, S., Ohmura, T. & Takahashi, J., 1 1 2017, : : Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 103, 8, p. 491-497 7 p.

研究成果: ジャーナルへの寄稿記事

Ferritic steel
Hall effect
Nitrogen
Carbon
Aging of materials
1 引用 (Scopus)
Ductile fracture
Phase structure
plastic deformation
Plastic deformation
Dacarbazine
1 引用 (Scopus)

Effect of Ni on the dislocation strengthening in ferritic iron

Akama, D., Tsuchiyma, T. & Takaki, S., 1 1 2017, : : Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 103, 5, p. 230-235 6 p.

研究成果: ジャーナルへの寄稿記事

Strengthening (metal)
Yield stress
Iron
iron
Elastic moduli
2 引用 (Scopus)

Energy-resolved small-angle neutron scattering from steel

Oba, Y., Morooka, S., Ohishi, K., Suzuki, J. I., Takata, S. I., Sato, N., Inoue, R., Tsuchiyma, T., Gilbert, E. P. & Sugiyama, M., 1 1 2017, : : Journal of Applied Crystallography. 50, p. 334-339 6 p.

研究成果: ジャーナルへの寄稿記事

Small Angle Scattering
Steel
Neutrons
Neutron scattering
Neutron sources
9 引用 (Scopus)

Evaluation of dislocation density in cold-worked iron as measured via X-ray diffractometry

Akama, D., Tsuchiyma, T. & Takaki, S., 7 1 2017, : : Zairyo/Journal of the Society of Materials Science, Japan. 66, 7, p. 522-527 6 p.

研究成果: ジャーナルへの寄稿記事

Dislocations (crystals)
X ray diffraction analysis
Carbon steel
Yield stress
Iron
4 引用 (Scopus)

Fatigue crack non-propagation assisted by nitrogen-enhanced dislocation planarity in austenitic stainless steels

Habib, K., Koyama, M., Tsuchiyma, T. & Noguchi, H., 11 1 2017, : : International Journal of Fatigue. 104, p. 158-170 13 p.

研究成果: ジャーナルへの寄稿記事

Austenitic Stainless Steel
Planarity
Fatigue Crack
Steel
Austenitic stainless steel
3 引用 (Scopus)

Hydrogen-induced increase in phase stability in metastable austenite of various grain sizes under strain

Macadre, A., Tsuchiyma, T. & Takaki, S., 3 1 2017, : : Journal of Materials Science. 52, 6, p. 3419-3428 10 p.

研究成果: ジャーナルへの寄稿記事

Phase stability
Martensite
Austenite
Hydrogen
Hydrogen embrittlement
2 引用 (Scopus)

Matrix switch related to microstructural connectivity and its effect on strength in metals with duplex microstructure

Nakada, N., Kawasaki, S., Kogakura, Y., Tsuchiyma, T. & Takaki, S., 4 6 2017, : : Materials Science and Engineering A. 690, p. 270-276 7 p.

研究成果: ジャーナルへの寄稿記事

austenite
Austenite
switches
Metals
Switches
4 引用 (Scopus)

Quantitative evaluation of Cu particle dissolution in cold-worked ferritic steel

Asano, M., Masumura, T., Tsuchiyma, T., Takaki, S., Takahashi, J. & Ushioda, K., 11 1 2017, : : Scripta Materialia. 140, p. 18-22 5 p.

研究成果: ジャーナルへの寄稿記事

Steel
Ferritic steel
dissolving
Dissolution
steels
2016
13 引用 (Scopus)

Change in dislocation characteristics with cold working in ultralow-carbon martensitic steel

Akama, D., Tsuchiyma, T. & Takaki, S., 1 1 2016, : : isij international. 56, 9, p. 1675-1680 6 p.

研究成果: ジャーナルへの寄稿記事

Cold working
Martensitic steel
Martensite
Carbon steel
Cold rolling
5 引用 (Scopus)

Magnetic scattering in the simultaneous measurement of small-angle neutron scattering and Bragg edge transmission from steel

Oba, Y., Morooka, S., Ohishi, K., Sato, N., Inoue, R., Adachi, N., Suzuki, J. I., Tsuchiyma, T., Gilbert, E. P. & Sugiyama, M., 10 1 2016, : : Journal of Applied Crystallography. 49, 5, p. 1659-1664 6 p.

研究成果: ジャーナルへの寄稿記事

Small Angle Scattering
Steel
Neutrons
Neutron scattering
Scattering
23 引用 (Scopus)

Microstructure and mechanical properties of a medium manganese steel treated with interrupted quenching and intercritical annealing

Tsuchiyma, T., Inoue, T., Tobata, J., Akama, D. & Takaki, S., 9 1 2016, : : Scripta Materialia. 122, p. 36-39 4 p.

研究成果: ジャーナルへの寄稿記事

Steel
Manganese
martensite
Martensite
manganese
12 引用 (Scopus)

Plastic deformation and dissolution of ϵ-Cu particles by cold rolling in an over-aged particle dispersion strengthening Fe-2mass%Cu alloy

Tsuchiyma, T., Yamamoto, S., Hata, S., Murayama, M., Morooka, S., Akama, D. & Takaki, S., 7 1 2016, : : Acta Materialia. 113, p. 48-55 8 p.

研究成果: ジャーナルへの寄稿記事

Cold rolling
Strengthening (metal)
Plastic deformation
Dissolution
Steel
2 引用 (Scopus)
Punching
Steel
proposals
steels
damage
6 引用 (Scopus)

Quantification of large deformation with punching in dual phase steel and change of its microstructure - Part I: Proposal of the quantification technique of the punching damage of the dual phase steel

Yokoi, T., Shuto, H., Ikeda, K. I., Nakada, N., Tsuchiyma, T., Ohmura, T., Mine, Y. & Takashima, K., 1 1 2016, : : isij international. 56, 11, p. 2068-2076 9 p.

研究成果: ジャーナルへの寄稿記事

Punching
Steel
Microstructure
Flanges
Electron diffraction
5 引用 (Scopus)
Punching
Correlation methods
Steel
Electron diffraction
Microstructure
1 引用 (Scopus)
Punching
Correlation methods
Steel
Electron diffraction
steels
15 引用 (Scopus)

Self-stabilization of untransformed austenite by hydrostatic pressure via martensitic transformation

Nakada, N., Ishibashi, Y., Tsuchiyma, T. & Takaki, S., 5 15 2016, : : Acta Materialia. 110, p. 95-102 8 p.

研究成果: ジャーナルへの寄稿記事

Martensitic transformations
Hydrostatic pressure
Austenite
Stabilization
Martensite
2015
2 引用 (Scopus)
Iron alloys
Steel
Transmission electron microscopy
Polishing
Microstructure
14 引用 (Scopus)

Critical grain size to limit the hydrogen-induced ductility drop in a metastable austenitic steel

Macadre, A., Nakada, N., Tsuchiyma, T. & Takaki, S., 9 7 2015, : : International Journal of Hydrogen Energy. 40, 33, p. 10697-10703 7 p.

研究成果: ジャーナルへの寄稿記事

Austenitic steel
ductility
Ductility
grain size
steels
1 引用 (Scopus)

Design of alloy composition in 5%Mn-Cr-C austenitic steels

Tsukahara, H., Masumura, T., Tsuchiyma, T., Takaki, S., Nakashima, K., Hase, K. & Endo, S., 1 1 2015, : : isij international. 55, 1, p. 312-318 7 p.

研究成果: ジャーナルへの寄稿記事

Austenitic steel
Manganese
Carbon steel
Strain hardening
Chemical analysis

Difference in martensitic transformation behavior between carbon- and nitrogen-added metastable austenitic stainless steels

Masumura, T., Nakada, N., Tsuchiyma, T., Takaki, S., Koyano, T. & Adachi, K., 2015, PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, p. 591-592 2 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Martensitic transformations
Austenitic stainless steel
Nitrogen
Carbon
Martensite

Effect of pearlite structure on lattice strain in ferrite estimated by the williamson-hall method

Tanaka, Y., Akama, D., Nakada, N., Tsuchiyma, T. & Takaki, S., 1 1 2015, : : isij international. 55, 11, p. 2515-2517 3 p.

研究成果: ジャーナルへの寄稿記事

Pearlite
Ferrite
Steel
Carbon steel
Volume fraction
9 引用 (Scopus)

Effect of sensitization on corrosion fatigue behavior of type 304 stainless steel annealed in nitrogen gas

Akita, M., Uematsu, Y., Kakiuchi, T., Nakajima, M., Tsuchiyma, T., Bai, Y. & Isono, K., 7 9 2015, : : Materials Science and Engineering A. 640, p. 33-41 9 p.

研究成果: ジャーナルへの寄稿記事

Corrosion fatigue
Stainless Steel
Chromium
stainless steels
corrosion

Possibility of auto-tempering in martensitic steels containing carbon

Takaki, S., Akama, D., Nakada, N., Tsuchiyma, T., Uemori, R., Murakami, M., Iwanaga, K. & Mizoguchi, S., 2015, PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, p. 79-80 2 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Martensitic steel
Tempering
Carbon
Martensite
X ray diffraction analysis
6 引用 (Scopus)

Strengthening of pearlitic steel by ferrite/cementite elastic misfit strain

Nakada, N., Koga, N., Tanaka, Y., Tsuchiyma, T., Takaki, S. & Ueda, M., 1 1 2015, : : isij international. 55, 9, p. 2036-2038 3 p.

研究成果: ジャーナルへの寄稿記事

Steel
Ferrite
Annealing
Lamellar structures
Pearlite