非均质Mn分布对淬火-配分钢微观组织和力学性能的影响

张超, 熊志平, 杨德振, 程兴旺

Effect of Mn Heterogeneous Distribution on Microstructures and Mechanical Properties of Quenching and Partitioning Steels

ZHANG Chao, XIONG Zhiping, YANG Dezhen, CHENG Xingwang

图7 PPQ&P 770-10试样中的RA形貌、Mn元素分布、选区电子衍射(SAED)花样和TKD像

Fig.7 Morphologies, Mn distributions along the red lines (insets at the bottom), SAED patterns of the green circles (insets at the top), and TKD phase map of RA in PPQ&P 770-10 sample (a) ghost pearlite within the conventional martensite matrix (TM—tempered martensite) (b) TKD phase map corresponding to the rectangle in Fig.7a (c) blocky RA within the conventional martensite matrix (d) film RA within the conventional martensite matrix