E690钢900度淬火600度回火的微观组织,包括扫描电镜及透射电镜表征。工艺:①900度保温30分钟淬火;②900度淬火600度回火1小时;③900度淬火600度回火3小时。
The microstructure of E690 steel quenched at 900°C and tempered at 600°C, including scanning electron microscopy and transmission electron microscopy. Process: ①Quenching at 900°C for 30 minutes; ②900°C quenching, 600°C tempering for 1 hour; ③900°C quenching, 600°tempering for 3 hours.