摘要
应用现代测试手段(SEM、TEM、EPMA、EELS),对T10A钢在激光淬火时,马氏体形态与亚结构的变化,马氏体中高的过饱和含碳量,奥氏体微观区城碳浓度分布的高度不均匀性进行了研究和定性、定量的测定,并在实验的基础上,分析讨论了马氏体形态与亚结构发生变化的本质原国。
In the microstructure of laser-hardened T10A steels,the changeof morphology, substructure and highly over-saturated carbon concentration ofmartensite, high heterogeneity of carbon content distribution in micro-region ofaustensite, have been investigated qualitatively and quantitatively using modenmicro-analysis technologies, such as TEM, SEM, EPMA, EELS. Furthermore,mechanisms of the change of the morphology and substructure of martensite havaalso been discussed.
关键词
碳工钢
激光淬火
马氏体
形态
laser heat treatment
laser hardening
laser transformation hardening
