闪速加热对2000 MPa级热成形钢显微组织和力学性能的影响

谢泽东, 丁灿灿, 温鹏宇, 罗海文

Effect of Flash Heating on Microstructure and Mechanical Properties of 2000 MPa Hot Stamping Steel

XIE Zedong, DING Cancan, WEN Pengyu, LUO Haiwen

图6 FH950和CH950样品的EBSD质量图和相分布叠加图、FH950样品Auger能谱、不同热成形工艺样品的XRD谱及残余奥氏体体积分数

Fig.6 EBSD image quality map overlapped with phase distribution on the microstructures of FH950 (a) and CH950 (b) specimens; Auger mapping of C, Mn, and Cr distributions in retained austenite (RA, green regions) in FH950 specimen (c); XRD spectra (d) and RA volume fractions (e) of the specimens subjected to both the conventional and flash heating processes