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2016
13 引用 (Scopus)

Advanced Thermomechanical Processing for a High-Mn Austenitic Steel

Kusakin, P., Tsuzaki, K., Molodov, D. A., Kaibyshev, R. & Belyakov, A., 12 1 2016, : : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 47, 12, p. 5704-5708 5 p.

研究成果: ジャーナルへの寄稿記事

Austenitic steel
Steel
Grain refinement
Strengthening (metal)
Forging
4 引用 (Scopus)
Steel
Martensitic transformations
martensitic transformation
Martensite
steels
8 引用 (Scopus)

Combined multi-scale analyses on strain/damage/microstructure in steel: Example of damage evolution associated with ε-martensitic transformation

Kaneko, T., Koyama, M., Fujisawa, T. & Tsuzaki, K., 1 1 2016, : : isij international. 56, 11, p. 2037-2046 10 p.

研究成果: ジャーナルへの寄稿記事

Steel
Martensitic transformations
Martensite
Microstructure
Plastic deformation
18 引用 (Scopus)

Deformation microstructural evolution and strain hardening of differently oriented grains in twinning-induced plasticity β titanium alloy

Min, X., Emura, S., Chen, X., Zhou, X., Tsuzaki, K. & Tsuchiya, K., 4 6 2016, : : Materials Science and Engineering A. 659, p. 1-11 11 p.

研究成果: ジャーナルへの寄稿記事

strain hardening
Microstructural evolution
Twinning
titanium alloys
twinning
11 引用 (Scopus)

Delamination toughening assisted by phosphorus in medium-carbon low-alloy steels with ultrafine elongated grain structures

Min, X., Kimura, Y., Kimura, T. & Tsuzaki, K., 1 1 2016, : : Materials Science and Engineering A. 649, p. 135-145 11 p.

研究成果: ジャーナルへの寄稿記事

high strength steels
Toughening
Crystal microstructure
carbon steels
High strength steel
42 引用 (Scopus)

Design concept and applications of Fe-Mn-Si-based alloys-from shape-memory to seismic response control

Sawaguchi, T., Maruyama, T., Otsuka, H., Kushibe, A., Inoue, Y. & Tsuzaki, K., 1 1 2016, : : Materials Transactions. 57, 3, p. 283-293 11 p.

研究成果: ジャーナルへの寄稿評論記事

Martensitic transformations
martensitic transformation
Seismic response
Shape memory effect
mechanical properties
1 引用 (Scopus)

Effect of additional boron amount on surface roughness after lathe turning in h-BN dispersed type 304 stainless steels

Kawajiri, M., Emura, S., Min, X., Yamamoto, S., Sakuraya, K. & Tsuzaki, K., 1 1 2016, : : isij international. 56, 6, p. 1031-1037 7 p.

研究成果: ジャーナルへの寄稿記事

Boron
Boron nitride
Stainless Steel
Steel
Stainless steel
20 引用 (Scopus)

Effect of strain amplitude on the low-cycle fatigue behavior of a new Fe-15Mn-10Cr-8Ni-4Si seismic damping alloy

Nikulin, I., Sawaguchi, T., Kushibe, A., Inoue, Y., Otsuka, H. & Tsuzaki, K., 7 1 2016, : : International Journal of Fatigue. 88, p. 132-141 10 p.

研究成果: ジャーナルへの寄稿記事

Low Cycle Fatigue
Damping
Fatigue
Fatigue of materials
Martensitic Transformation
29 引用 (Scopus)

Effect of strain rate on hydrogen embrittlement susceptibility of twinning-induced plasticity steel pre-charged with high-pressure hydrogen gas

Bal, B., Koyama, M., Gerstein, G., Maier, H. J. & Tsuzaki, K., 9 14 2016, : : International Journal of Hydrogen Energy. 41, 34, p. 15362-15372 11 p.

研究成果: ジャーナルへの寄稿記事

hydrogen embrittlement
Hydrogen embrittlement
Twinning
twinning
plastic properties
25 引用 (Scopus)

Effect of γ to ε martensitic transformation on low-cycle fatigue behaviour and fatigue microstructure of Fe-15Mn-10Cr-8Ni-xSi austenitic alloys

Nikulin, I., Sawaguchi, T., Ogawa, K. & Tsuzaki, K., 2 15 2016, : : Acta Materialia. 105, p. 207-218 12 p.

研究成果: ジャーナルへの寄稿記事

Martensitic transformations
Fatigue of materials
Microstructure
Hardening
Martensite
13 引用 (Scopus)
Fatigue crack propagation
martensite
Martensite
Hydrogen
cracks
14 引用 (Scopus)

Hydrogen-assisted damage in austenite/martensite dual-phase steel

Koyama, M., Tasan, C. C., Nagashima, T., Akiyama, E., Raabe, D. & Tsuzaki, K., 1 2 2016, : : Philosophical Magazine Letters. 96, 1, p. 9-18 10 p.

研究成果: ジャーナルへの寄稿記事

austenite
martensite
steels
damage
hydrogen
20 引用 (Scopus)
hydrogen embrittlement
Hydrogen embrittlement
Binary alloys
binary alloys
martensite
26 引用 (Scopus)

In situ microscopic observations of low-cycle fatigue-crack propagation in high-Mn austenitic alloys with deformation-induced ϵ-martensitic transformation

Ju, Y. B., Koyama, M., Sawaguchi, T., Tsuzaki, K. & Noguchi, H., 6 15 2016, : : Acta Materialia. 112, p. 326-336 11 p.

研究成果: ジャーナルへの寄稿記事

Martensitic transformations
Fatigue crack propagation
Crack propagation
Fatigue of materials
Cracks
13 引用 (Scopus)

Martensitic transformation-induced hydrogen desorption characterized by utilizing cryogenic thermal desorption spectroscopy during cooling

Koyama, M., Abe, Y., Saito, K., Akiyama, E., Takai, K. & Tsuzaki, K., 9 1 2016, : : Scripta Materialia. 122, p. 50-53 4 p.

研究成果: ジャーナルへの寄稿記事

Thermal desorption spectroscopy
Martensitic transformations
martensitic transformation
Cryogenics
cryogenics
9 引用 (Scopus)

On strengthening of austenitic stainless steel by large strain cold working

Shakhova, I., Belyakov, A., Yanushkevich, Z., Tsuzaki, K. & Kaibyshev, R., 1 1 2016, : : isij international. 56, 7, p. 1289-1296 8 p.

研究成果: ジャーナルへの寄稿記事

Cold working
Cold rolling
Austenitic stainless steel
Martensite
Austenite
2017

Application of Radio Frequency Glow Discharge Sputtering for Nanoindentation Sample Preparation

Sekido, N., Ohmura, T. & Tsuzaki, K., 3 1 2017, : : Journal of Materials Engineering and Performance. 26, 3, p. 1245-1250 6 p.

研究成果: ジャーナルへの寄稿記事

Glow discharges
Nanoindentation
Sputtering
Surface roughness
Nanohardness
114 引用 (Scopus)

Bone-like crack resistance in hierarchical metastable nanolaminate steels

Koyama, M., Zhang, Z., Wang, M., Ponge, D., Raabe, D., Tsuzaki, K., Noguchi, H. & Tasan, C. C., 3 10 2017, : : Science. 355, 6329, p. 1055-1057 3 p.

研究成果: ジャーナルへの寄稿記事

Bone
Fatigue of materials
Cracks
Steel
Phase stability
17 引用 (Scopus)
Fatigue Crack Propagation
Twinning
Fatigue Crack
Steel
Fatigue crack propagation
5 引用 (Scopus)

Effects of lamella size and connectivity on fatigue crack resistance of TRIP-maraging steel

Zhang, Z., Koyama, M., Wang, M. M., Tsuzaki, K., Tasan, C. C. & Noguchi, H., 7 1 2017, : : International Journal of Fatigue. 100, p. 176-186 11 p.

研究成果: ジャーナルへの寄稿記事

Maraging steel
Fatigue Crack
Plasticity
Roughness
Austenite
16 引用 (Scopus)

Effects of martensitic transformability and dynamic strain age hardenability on plasticity in metastable austenitic steels containing carbon

Ogawa, T., Koyama, M., Tasan, C. C., Tsuzaki, K. & Noguchi, H., 7 1 2017, : : Journal of Materials Science. 52, 13, p. 7868-7882 15 p.

研究成果: ジャーナルへの寄稿記事

Austenitic steel
Plasticity
Carbon
Steel
Strain hardening
11 引用 (Scopus)
Damage Accumulation
Martensitic Transformation
Low Cycle Fatigue
Fatigue Crack Growth
Martensitic transformations

Fatigue Crack Threshold of Bearing Steel at a Very Low Stress Ratio

Wada, K., Abass, A., Okazaki, S., Fukushima, Y., Matsunaga, H. & Tsuzaki, K., 1 1 2017, : : Procedia Structural Integrity. 7, p. 391-398 8 p.

研究成果: ジャーナルへの寄稿記事

公開
Bearings (structural)
Steel
Crack closure
Fatigue of materials
Cracks
8 引用 (Scopus)
Fatigue Crack Growth
Evaluation Method
Fatigue crack propagation
Crack
Notch
14 引用 (Scopus)

Hydrogen desorption and cracking associated with martensitic transformation in Fe-Cr-Ni-Based austenitic steels with different carbon contents

Koyama, M., Ogawa, T., Yan, D., Matsumoto, Y., Tasan, C. C., Takai, K. & Tsuzaki, K., 10 19 2017, : : International Journal of Hydrogen Energy. 42, 42, p. 26423-26435 13 p.

研究成果: ジャーナルへの寄稿記事

Austenitic steel
Martensitic transformations
martensitic transformation
Desorption
desorption

Hydrogen embrittlement of binary high Mn austenitic steels

Koyama, M., Sawaguchi, T. & Tsuzaki, K., 1 1 2017, ICF 2017 - 14th International Conference on Fracture. Gdoutos, E. E. (版). International Conference on Fracture, p. 75-76 2 p. (ICF 2017 - 14th International Conference on Fracture; 巻数 1).

研究成果: 著書/レポートタイプへの貢献会議での発言

Hydrogen embrittlement
Austenitic steel
Martensite
Binary alloys
Austenite
5 引用 (Scopus)

Influence of cold forging and annealing on microstructure and mechanical properties of a high-Mn TWIP steel

Kusakin, P., Kalinenko, A., Tsuzaki, K., Belyakov, A. & Kaibyshev, R., 1 1 2017, : : Kovove Materialy. 55, 3, p. 161-167 7 p.

研究成果: ジャーナルへの寄稿記事

Steel
Forging
Annealing
Mechanical properties
Microstructure
22 引用 (Scopus)

In situ observations of silver-decoration evolution under hydrogen permeation: Effects of grain boundary misorientation on hydrogen flux in pure iron

Koyama, M., Yamasaki, D., Nagashima, T., Tasan, C. C. & Tsuzaki, K., 3 1 2017, : : Scripta Materialia. 129, p. 48-51 4 p.

研究成果: ジャーナルへの寄稿記事

Silver
Permeation
misalignment
Hydrogen
Grain boundaries
7 引用 (Scopus)

Interfacial hydrogen localization in austenite/martensite dual-phase steel visualized through optimized silver decoration and scanning Kelvin probe force microscopy

Nagashima, T., Koyama, M., Bashir, A., Rohwerder, M., Tasan, C. C., Akiyama, E., Raabe, D. & Tsuzaki, K., 3 1 2017, : : Materials and Corrosion. 68, 3, p. 306-310 5 p.

研究成果: ジャーナルへの寄稿記事

Steel
Silver
Martensite
Austenite
microscopy
2 引用 (Scopus)
short cracks
Fatigue Crack
Model Analysis
Material Properties
Materials properties
6 引用 (Scopus)
Fatigue crack propagation
Fatigue of materials
Poisson distribution
Austenitic steel
Crack propagation
7 引用 (Scopus)

Multiscale in situ deformation experiments: A sequential process from strain localization to failure in a laminated Ti-6Al-4V alloy

Koyama, M., Yamanouchi, K., Wang, Q., Ri, S., Tanaka, Y., Hamano, Y., Yamasaki, S., Mitsuhara, M., Ohkubo, M., Noguchi, H. & Tsuzaki, K., 6 1 2017, : : Materials Characterization. 128, p. 217-225 9 p.

研究成果: ジャーナルへの寄稿記事

Experiments
Sampling
Scanning electron microscopy
ambient temperature
interfacial tension
85 引用 (Scopus)

Overview of hydrogen embrittlement in high-Mn steels

Koyama, M., Akiyama, E., Lee, Y. K., Raabe, D. & Tsuzaki, K., 4 27 2017, : : International Journal of Hydrogen Energy. 42, 17, p. 12706-12723 18 p.

研究成果: ジャーナルへの寄稿評論記事

hydrogen embrittlement
Hydrogen embrittlement
steels
Hydrogen
Steel

Precision microanalysis of B toward actualization of welded structure using B doped Al-Si-Mn weathering steel

Meguro, S., Kimura, T., Nakamura, T., Qiu, H., Kawada, S. & Tsuzaki, K., 1 1 2017, : : Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society. 35, 1, p. 5S-8S

研究成果: ジャーナルへの寄稿記事

公開
Weathering steel
Steel
Microanalysis
Laser ablation
Mass spectrometry
35 引用 (Scopus)

Recent progress in microstructural hydrogen mapping in steels: quantification, kinetic analysis, and multi-scale characterisation

Koyama, M., Rohwerder, M., Tasan, C. C., Bashir, A., Akiyama, E., Takai, K., Raabe, D. & Tsuzaki, K., 9 2 2017, : : Materials Science and Technology (United Kingdom). 33, 13, p. 1481-1496 16 p.

研究成果: ジャーナルへの寄稿記事

Steel
Hydrogen
steels
Kinetics
kinetics
1 引用 (Scopus)
Silver
Permeation
misalignment
Hydrogen
Grain boundaries
15 引用 (Scopus)

Room-temperature blue brittleness of Fe-Mn-C austenitic steels

Koyama, M., Shimomura, Y., Chiba, A., Akiyama, E. & Tsuzaki, K., 12 2017, : : Scripta Materialia. 141, p. 20-23 4 p.

研究成果: ジャーナルへの寄稿記事

brittleness
Austenitic steel
Brittleness
strain rate
Carbon steel

Study on crack occurrence of titanium alloy in tensile test by advanced moiré technique

Wang, Q. H., Ri, S., Tanaka, Y., Naito, K., Koyama, M., Tsuzaki, K. & Ohkubo, M., 1 1 2017, p. 481-482. 2 p.

研究成果: 会議への寄与タイプ論文

Titanium alloys
Cracks
Shear strain
Crack initiation
Grain boundaries
12 引用 (Scopus)

Two-dimensional Moiré phase analysis for accurate strain distribution measurement and application in crack prediction

Wang, Q., Ri, S., Tsuda, H., Koyama, M. & Tsuzaki, K., 6 12 2017, : : Optics Express. 25, 12, p. 13465-13480 16 p.

研究成果: ジャーナルへの寄稿記事

strain distribution
cracks
strain measurement
shear strain
predictions
2018
2 引用 (Scopus)

A new design concept for prevention of hydrogen-induced mechanical degradation: Viewpoints of metastability and high entropy

Koyama, M., Eguchi, T., Ichii, K., Tasan, C. C. & Tsuzaki, K., 1 1 2018, : : Procedia Structural Integrity. 13, p. 292-297 6 p.

研究成果: ジャーナルへの寄稿Conference article

公開
Martensite
Hydrogen
Entropy
Degradation
Austenitic steel
2 引用 (Scopus)

An unconventional hydrogen effect that suppresses thermal formation of the hcp phase in fcc steels

Koyama, M., Hirata, K., Abe, Y., Mitsuda, A., Iikubo, S. & Tsuzaki, K., 12 1 2018, : : Scientific reports. 8, 1, 16136.

研究成果: ジャーナルへの寄稿記事

Steel
Hydrogen
Hot Temperature
Thermodynamics
Iron
20 引用 (Scopus)

Comparative study of hydrogen embrittlement in stable and metastable high-entropy alloys

Ichii, K., Koyama, M., Tasan, C. C. & Tsuzaki, K., 6 2018, : : Scripta Materialia. 150, p. 74-77 4 p.

研究成果: ジャーナルへの寄稿記事

hydrogen embrittlement
Hydrogen embrittlement
Entropy
entropy
Hydrogen

Effect of Si on temperature dependence of non-propagation limit of small fatigue crack in a Fe-C alloy

Kishida, K., Koyama, M., Yoshimura, N., Sakurada, E., Yokoi, T., Ushioda, K., Tsuzaki, K. & Noguchi, H., 1 1 2018, : : Procedia Structural Integrity. 13, p. 1032-1036 5 p.

研究成果: ジャーナルへの寄稿Conference article

公開
Fatigue of materials
Binary alloys
Carbides
Carbon
Temperature
2 引用 (Scopus)
Austenitic steel
tensile strength
Steel
solutes
Tensile strength

Fatigue behavior of Fe-Cr-Ni-based metastable austenitic steels with an identical tensile strength and different solute carbon contents

Ogawa, T., Koyama, M., Nishikura, Y., Tsuzaki, K. & Noguchi, H., 10 2018, : : isij international. 58, 10, p. 1910-1919 10 p.

研究成果: ジャーナルへの寄稿記事

Austenitic steel
Steel
Tensile strength
Carbon
Fatigue of materials
1 引用 (Scopus)

Fatigue Crack Growth Behavior and Associated Microstructure in a Metastable High-Entropy Alloy

Eguchi, T., Koyama, M., Fukushima, Y., Tasan, C. C. & Tsuzaki, K., 1 1 2018, : : Procedia Structural Integrity. 13, p. 831-836 6 p.

研究成果: ジャーナルへの寄稿Conference article

公開
Fatigue crack propagation
Entropy
Microstructure
Martensite
Ductility
9 引用 (Scopus)

First-Principles Study on Hydrogen Diffusivity in BCC, FCC, and HCP Iron

Hirata, K., Iikubo, S., Koyama, M., Tsuzaki, K. & Ohtani, H., 10 1 2018, : : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 49, 10, p. 5015-5022 8 p.

研究成果: ジャーナルへの寄稿記事

diffusivity
Hydrogen
Iron
diffusion coefficient
iron
6 引用 (Scopus)

High-concentration carbon assists plasticity-driven hydrogen embrittlement in a Fe-high Mn steel with a relatively high stacking fault energy

Tuğluca, I. B., Koyama, M., Bal, B., Canadinc, D., Akiyama, E. & Tsuzaki, K., 2 21 2018, : : Materials Science and Engineering A. 717, p. 78-84 7 p.

研究成果: ジャーナルへの寄稿記事

hydrogen embrittlement
stacking fault energy
Hydrogen embrittlement
Steel
Stacking faults
6 引用 (Scopus)

Hydrogen trapping in carbon supersaturated α‑iron and its decohesion effect in martensitic steel

Geng, W. T., Wang, V., Li, J. X., Ishikawa, N., Kimizuka, H., Tsuzaki, K. & Ogata, S., 5 2018, : : Scripta Materialia. 149, p. 79-83 5 p.

研究成果: ジャーナルへの寄稿記事

Martensitic steel
martensite
Martensite
Hydrogen
Carbon
1 引用 (Scopus)

Localized Plasticity and Associated Cracking in Stable and Metastable High-Entropy Alloys Pre-Charged with Hydrogen

Ichii, K., Koyama, M., Tasan, C. C. & Tsuzaki, K., 1 1 2018, : : Procedia Structural Integrity. 13, p. 716-721 6 p.

研究成果: ジャーナルへの寄稿Conference article

公開
Plasticity
Hydrogen
Entropy
Austenite
Ductility