In Situ Observation of the Austenite Grains Growth Behavior in the Austenitizing Process of Nb–Ti Micro-Alloyed Medium Manganese Steel. - Yuan, Guangpeng; Du, Yu; Sun, Chao; Gao, Xiuhua; Wu, Hongyan; Du, Linxiu (Coatings (2079-6412), 2025)