E690钢900度淬火600度回火的X射线衍射分析,工艺包括: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。
X-ray diffraction analysis of E690 steel quenched at 900℃ tempered at 600℃. The process includes: ①900℃ for 30 minutes then quenching; ②900℃ quenching, 600℃ tempering for 1 hour; ③900℃ quenching, 600℃ tempering for 3 hours.