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12 PPQ&P 770-10试样在不同应变下的显微组织

Fig.12 Microstructures of PPQ&P 770-10 sample when the uniaxial tension is interrupted at the strains of 0 (a), 6.9% (b), 13.8% (c), and about 20% (fractured) (d)(FM—fresh martensite. Inset in Fig.12d shows the FM transformed from ghost pearlite)