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)
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)
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.; 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)
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)
Scientists of the Max-Planck-Institut für Eisenforschung pioneer new machine learning model for corrosion-resistant alloy design. Their results are now published in the journal Science Advances
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
Biological materials in nature have a lot to teach us when in comes to creating tough bio-inspired designs. This project aims to explore the unknown impact mitigation mechanisms of the muskox head (ovibus moschatus) at several length scales and use this gained knowledge to develop a novel mesoscale (10 µm to 1000 µm) metamaterial that can mimic the…
In this project, we employ atomistic computer simulations to study grain boundaries. Primarily, molecular dynamics simulations are used to explore their energetics and mobility in Cu- and Al-based systems in close collaboration with experimental works in the GB-CORRELATE project.