“…Detailed process 620-WQ 620 1C, 1 h, water quenching 620R-AC 620 1C multi hot rolling, 70% reduction, air cooling 620R-WQ 620 1C multi hot rolling, 70% reduction, water quenching 750R-AC 750 1C multi hot rolling, 70% reduction, air cooling 750R-WQ 750 1C multi hot rolling, 70% reduction, water quenching transformation mechanism, a β texture transforms into a α-basal texture during martensite transformation, as Obasi reported [21]. Optical micrographs of the specimens with different treatments are shown in Fig.…”