摘要
本文直用光学及电子显微镜研究了60Si 2MnA 钢马氏体——贝氏体混合组织及其对机械性能的影响,并对裂纹在马氏体——贝氏体混合组织、贝氏体组织内部的扩展机制及其碳化物对裂纹扩展的影响进行了观察和研究。
This paper deals with martensite-bainite mixed microstructure of 60Si2MnA St- eel by optical and electron microscopy and its effect on the mechanical properties. The mechanism of the crack propagating in martensite-bainite and bainite as we- ll as the influence of carbides on the clack propagating have been observed and analysed.
关键词
60SI2MNA钢
混合组织
强韧性
机制
mixed microstructure
mechanism of strength and toughness
silicon steel
