低合金高强钢板贝/马复相回火过程硬度及微观组织的演变行为

鞠玉琳, 魏琪, 袁志钟, 程晓农

Hardness and Microstructural Evolution of Lower Bainite and Martensite Mixtures on Tempering of High-Strength Low-Alloy Steel Plates

JU Yulin, WEI Qi, YUAN Zhizhong, CHENG Xiaonong

图4 100%LB、LB/M (56%M + 44%LB)和100%M试样的SEM像，及贝/马复相马氏体内自回火碳化物的形貌

Fig.4 SEM images of 100%LB (a), LB/M (56%M + 44%LB) (b), and 100%M (c) samples; and TEM image and selected area electron diffractin (SAED) pattern (inset) of the auto-tempered carbides within martensite in the LB/M microstructure, where the bright-field TEM image is from <001>α beam direction (Cementite and ε-carbide particles are along <011>α and <001>α, respectively) (d)