Home News Short News IHK awards Max Planck instructors with the Golden Badge of Honour Publications of Ho Yong Um All genres Journal Article (1) Journal Article (1) 1. Journal Article Bae, J. W.; Seol, J. B.; Moon, J.; Sohn, S. S.; Jang, M. J.; Um, H. Y.; Lee, B.-J.; Kim, H. S.: Exceptional phase-transformation strengthening of ferrous medium-entropy alloys at cryogenic temperatures. Acta Materialia 161, pp. 388 - 399 (2018) MPG.PuRe DOI