Publications of Motomichi Koyama

Zhang, Z.; Koyama, M.; Wang, M.; Tasan, C. C.; Noguchi, H.: Fatigue Resistance of Laminated and Non-laminated TRIP-maraging Steels: Crack Roughness vs Tensile Strength. Metallurgical and Materials Transactions A 50 (3), pp. 1142 - 1145 (2019)

Zhang, Z.; Koyama, M.; Wang, M.; Tsuzaki, K.; Tasan, C. C.; Noguchi, H.: Microstructural mechanisms of fatigue crack non-propagation in TRIP-maraging steels. International Journal of Fatigue 113, pp. 126 - 136 (2018)

Koyama, M.; Ogawa, T.; Yan, D.; Matsumoto, Y.; Tasan, C. C.; Takai, K.; Tsuzaki, K.: Hydrogen desorption and cracking associated with martensitic transformation in Fe–Cr–Ni-Based austenitic steels with different carbon contents. International Journal of Hydrogen Energy 42 (42), pp. 26423 - 26435 (2017)

Ogawa, T.; Koyama, M.; Tasan, C. C.; Tsuzaki, K.; Noguchi, H.: Effects of martensitic transformability and dynamic strain age hardenability on plasticity in metastable austenitic steels containing carbon. Journal of Materials Science: Materials in Electronics 52 (13), pp. 7868 - 7882 (2017)

Zhang, Z.; Koyama, M.; Wang, M.; Tsuzaki, K.; Tasan, C. C.; Noguchi, H.: Effects of lamella size and connectivity on fatigue crack resistance of TRIP-maraging steel. International Journal of Fatigue 100 (1), pp. 176 - 186 (2017)

Koyama, M.; Akiyama, E.; Lee, Y.-K.; Raabe, D.; Tsuzaki, K.: Overview of hydrogen embrittlement in high-Mn steels. International Journal of Hydrogen Energy 42 (17), pp. 12706 - 12723 (2017)

Koyama, M.; Zhang, Z.; Wang, M.; Ponge, D.; Raabe, D.; Tsuzaki, K.; Noguchi, H.; Tasan, C. C.: Bone-like crack resistance in hierarchical metastable nanolaminate steels. Science 355 (6329), pp. 1055 - 1057 (2017)

Nagashima, T.; Koyama, M.; Bashir, A.; Rohwerder, M.; Tasan, C. C.; Akiyama, E.; Raabe, D.; Tsuzaki, K.: Interfacial hydrogen localization in austenite/martensite dual-phase steel visualized through optimized silver decoration and scanning Kelvin probe force microscopy. Materials and Corrosion - Werkstoffe und Korrosion 68 (3), pp. 306 - 310 (2017)

Koyama, M.; Rohwerder, M.; Tasan, C. C.; Bashir, A.; Akiyama, E.; Takai, K.; Raabe, D.; Tsuzaki, K.: Recent progress in microstructural hydrogen mapping in steels: quantification, kinetic analysis, and multi-scale characterisation. Materials Science and Technology 33 (13), pp. 1481 - 1496 (2017)

Koyama, M.; Tasan, C. C.; Nagashima, T.; Akiyama, E.; Raabe, D.; Tsuzaki, K.: Hydrogen-assisted damage in austenite/martensite dual-phase steel. Philosophical Magazine Letters 96 (1), pp. 9 - 18 (2016)

Wang, M.; Tasan, C. C.; Koyama, M.; Ponge, D.; Raabe, D.: Enhancing Hydrogen Embrittlement Resistance of Lath Martensite by Introducing Nano-Films of Interlath Austenite. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 46 (9), pp. 3797 - 3802 (2015)

Koyama, M.; Bashir, A.; Rohwerder, M.; Merzlikin, S. V.; Akiyama, E.; Tsuzaki, K.; Raabe, D.: Spatially and Kinetically Resolved Mapping of Hydrogen in a Twinning-Induced Plasticity Steel by Use of Scanning Kelvin Probe Force Microscopy. Journal of the Electrochemical Society 162 (12), pp. C638 - C647 (2015)

Tasan, C. C.; Diehl, M.; Yan, D.; Bechtold, M.; Roters, F.; Schemmann, L.; Zheng, C.; Peranio, N.; Ponge, D.; Koyama, M. et al.; Tsuzaki, K.; Raabe, D.: An Overview of Dual-Phase Steels: Advances in Microstructure-Oriented Processing and Micromechanically Guided Design. Annual Review of Materials Research 45, pp. 391 - 431 (2015)

Koyama, M.; Tasan, C. C.; Akiyama, E.; Tsuzaki, K.; Raabe, D.: Hydrogen-assisted decohesion and localized plasticity in dual-phase steel. Acta Materialia 70, pp. 174 - 187 (2014)

Koyama, M.; Springer, H.; Merzlikin, S. V.; Tsuzaki, K.; Akiyama, E.; Raabe, D.: Hydrogen embrittlement associated with strain localization in a precipitation-hardened Fe–Mn–Al–C light weight austenitic steel. International Journal of Hydrogen Energy 39 (9), pp. 4634 - 4646 (2014)

Raabe, D.; Springer, H.; Gutiérrez-Urrutia, I.; Roters, F.; Bausch, M.; Seol, J. B.; Koyama, M.; Choi, P.-P.; Tsuzaki, K.: Alloy Design, Combinatorial Synthesis, and Microstructure-Property Relations for Low-Density Fe–Mn–Al–C Austenitic Steels. JOM-Journal of the Minerals Metals & Materials Society 66 (9), pp. 1845 - 1856 (2014)

Koyama, M.; Akiyama, E.; Tsuzaki, K.; Raabe, D.: Hydrogen-assisted failure in a twinning-induced plasticity steel studied under in situ hydrogen charging by electron channeling contrast imaging. Acta Materialia 61 (12), pp. 4607 - 4618 (2013)

Raabe, D.; Ponge, D.; Kwiatkowski da Silva, A.; Herbig, M.; Makineni, S. K.; Wu, X.; Katnagallu, S.; Stephenson, L.; Zhao, H.; Koyama, M. et al.; Kontis, P.; Scheu, C.; Liebscher, C.; Eggeler, G. F.; Spiecker, E.; Gault, B.: Advancing Alloys by Segregation Engineering. 18th International Conference on the Strength of Materials (ICSMA18), Ohio State University, Columbus, OH, USA (2018)

Ponge, D.; Tasan, C. C.; Springer, H.; Gutiérrez-Urrutia, I.; Koyama, M.; Kuzmina, M.; Wang, M.; Morsdorf, L.; Gault, B.; Seol, J. B. et al.; Choi, P.-P.; Liebscher, C.; Yao, M.; Li, Z.; Wang, H., H.; Neugebauer, J.; Scheu, C.; Raabe, D.: 1 Billion Tons of Nanostructure - Metastability Alloy Design and Segregation Engineering. 38th Risø Intern. Symp. Materials Science Advanced Metallic Materials by Microstructural Design , Roskilde, Denmark (2017)

Ponge, D.; Tasan, C. C.; Springer, H.; Koyama, M.; Kuzmina, M.; Wang, M.; Morsdorf, L.; Gault, B.; Seol, J. B.; Liebscher, C. et al.; Yao, M.; Li, Z.; Gutiérrez-Urrutia, I.; Wang, H.; Neugebauer, J.; Scheu, C.; Raabe, D.: Metastability Alloy Design. 16th Intern. Conference on Rapidly Quenched and Metastable Materials (RQ16), Leoben, Austria (2017)