Wang, X.; Ma, Y.; Meng, B.; Wan, M.: Effect of equal-channel angular pressing on microstructural evolution, mechanical property and biodegradability of an ultrafine-grained zinc alloy. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 824, 141857 (2021)

Souza Filho, I. R.; Ma, Y.; Kulse, M.; Ponge, D.; Gault, B.; Springer, H.; Raabe, D.: Sustainable steel through hydrogen plasma reduction of iron ore: Process, kinetics, microstructure, chemistry. Acta Materialia 213, 116971 (2021)

Kim, S.-H.; Zhang, X.; Ma, Y.; Souza Filho, I. R.; Schweinar, K.; Angenendt, K.; Vogel, D.; Stephenson, L.; El-Zoka, A.; Mianroodi, J. R. et al.; Rohwerder, M.; Gault, B.; Raabe, D.: Influence of Microstructure and Atomic-Scale Chemistry on Iron Ore Reduction with Hydrogen at 700°C. Acta Materialia 212, 116933 (2021)

Sulzer, S.; Li, Z.; Zaefferer, S.; Haghighat, S. M. H.; Wilkinson, A. J.; Raabe, D.; Reed, R. C.: On the assessment of creep damage evolution in nickel-based superalloys through correlative HR-EBSD and cECCI studies. Acta Materialia 185, pp. 13 - 27 (2020)

Ma, Y.; Raabe, D.: Basic science behind green steel making. 2023 International Symposium on Hydrogen Metallurgy (ISHM2023), Chongli, China (2023)

Ma, Y.; Wang, Y.-F.; Bugelnig, K.; Villanova, J.; Requena, G.; Raabe, D.: Porosity evolution during sustainable ironmaking with hydrogen probed by 4D synchrotron X-ray nano-tomography. European Synchrotron Radiation Facility User Meeting 2023, Grenoble, France (2023)

Ma, Y.: Microstructure evolution during hydrogen-based direct reduction of iron oxides. International Workshop on Sustainable Metallurgy of Green Steel (GreenSteel2022), online (2022)

Ma, Y.; Wang, Y.-F.; Bugelnig, K.; Villanova, J.; Requena, G.; Raabe, D.: Green steel: porosity evolution during hydrogen-based direct reduction of hematite probed by in-situ synchrotron X-ray nano-tomography. MSE 2022, Darmstadt, Germany (2022)

Ma, Y.; Wang, Y.-F.; Bugelnig, K.; Tsai, S.-P.; Villanova, J.; Zaefferer, S.; Requena, G.; Raabe, D.: Microstructure and porosity evolution during hydrogen-based direct reduction of iron ore. DGM X-ray tomography working group meeting, online (2022)

Raabe, D.; Souza Filho, I. R.: Green Steel Research at the Max Planck Institute. Webinar Green Steel, Arcelor Mittal Brazil, Online (2022)

Ma, Y.; Villanova, J.; Requena, G.; Raabe, D.: Understanding the physical-chemical phenomena in green steel production using synchrotron X-ray techniques. European Synchrotron Radiation Facility User Meeting 2022, Online (2022)

Best, J. P.; Tian, C.; Ma, Y.; Dehm, G.; Rasiński, M.: Reduced toughness of recrystallised tungsten at grain boundaries evidenced through site-specific microcantilever fracture testing. 11th European Solid Mechanics Conference - ESMC 2022, Galway, Ireland (2022)

Raabe, D.; Kim, S.-H.; Zhang, X.; Ma, Y.; Souza Filho, I. R.; Schweinar, K.; Angenendt, K.; Vogel, D.; Stephenson, L.; El-Zoka, A. et al.; Mianroodi, J. R.; Rohwerder, M.; Gault, B.; Bai, Y.; Springer, H.; Ponge, D.; Kulse, M.; Mahajan, A.; Zaefferer, S.: Sustainable Metals. Virtual Keynote Perspective Lecture, Materials Chain and Materials Science Department, RUB , Bochum, Germany (accepted)

Ma, Y.: Materials Characterization – Introduction to X-ray Diffraction. Lecture: International Max Planck Research School for Interface Controlled Materials for Energy Conversion (IMPRSURMAT), online, 2021-08

Raabe, D.; Cojocaru-Mirédin, O.; El-Zoka, A.; Kontis, P.; Ma, Y.; Mianroodi, J. R.; Ponge, D.; Souza Filho, I. R.; Sandlöbes-Haut, S.; Zaefferer, S. et al.; Zhao, H.: Sustainable Materials Science and Green Metallurgy (Sustainable Materials and Metallurgical Science & Engineering). Lecture: SS 2021, RWTH Aachen University, 2021-04 - 2021-07