Ratzker, B.; Ruffino, M.; Shankar, S.; Raabe, D.; Ma, Y.: Elucidating the microstructure evolution during hydrogen-based direct reduction via a case study of single crystal hematite. Acta Materialia 294, 121174 (2025)
Özgün, Ö.; Dirba, I.; Gutfleisch, O.; Ma, Y.; Raabe, D.: Green Ironmaking at Higher H2 Pressure: Reduction Kinetics and Microstructure Formation During Hydrogen-Based Direct Reduction of Hematite Pellets. Journal of Sustainable Metallurgy 10, pp. 1127 - 1140 (2024)
Lu, X.; Ma, Y.; Johnsen, R.; Wang, D.: In situ nanomechanical characterization of hydrogen effects on nickel-based alloy 725 under different metallurgical conditions. Journal of Materials Science & Technology 135, pp. 156 - 169 (2023)
Souza Filho, I. R.; Ma, Y.; Raabe, D.; Springer, H.: Fundamentals of Green Steel Production: On the Role of Gas Pressure During Hydrogen Reduction of Iron Ores. JOM-Journal of the Minerals Metals & Materials Society 75, pp. 2274 - 2286 (2023)
Zhang, S.; Li, K.; Ma, Y.; Bu, Y.; Zeng, L.; Yang, Z.; Zhang, J.: The Adsorption Mechanism of Hydrogen on FeO Crystal Surfaces: A Density Functional Theory Study. Nanomaterials 13 (14), 2051 (2023)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
In order to develop more efficient catalysts for energy conversion, the relationship between the surface composition of MXene-based electrode materials and its behavior has to be understood in operando. Our group will demonstrate how APT combined with scanning photoemission electron microscopy can advance the understanding of complex relationships…
This project studies the mechanical properties and microstructural evolution of a transformation-induced plasticity (TRIP)-assisted interstitial high-entropy alloy (iHEA) with a nominal composition of Fe49.5Mn30Co10Cr10C0.5 (at. %) at cryogenic temperature (77 K). We aim to understand the hardening behavior of the iHEA at 77 K, and hence guide the future design of advanced HEA for cryogenic applications.
Statistical significance in materials science is a challenge that has been trying to overcome by miniaturization as in micropillar compression. However, this process is still limited to 4-5 tests per parameter variance, i.e. Size, orientation, grain size, composition, etc. as the process of fabricating pillars and testing has to be done one by one.…
The precipitation of intermetallic phases from a supersaturated Co(Nb) solid solution is studied in a cooperation with the Hokkaido University of Science, Sapporo.