E690钢900度淬火600度回火的电子背散射衍射分析。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。
Electron backscatter diffraction analysis of E690 steel quenched at 900℃ and tempered at 600℃. Process: ①900°C for 30 minutes then quenching; ②Quenching from 900°C and tempering at 600°C for 1 hour; ③Quenching from 900°C and tempering at 600°C for 3 hours.