摘要
对Fe-23MnTWIP钢的微观组织进行了原位观察。结果表明:Fe-23MnTWIP钢的变形过程是以滑移和孪生两种方式进行的,其中主要是滑移,辅之以孪生变形,在具有孪晶界的晶粒内部为了松弛滑移受阻所引起的应力集中首先会发生孪晶变形,而且拉伸过程中会产生二次孪晶,孪晶可以交互穿越,初生孪晶与次生孪晶交错,使孪晶切割基体增加运动的障碍起到细化晶粒的作用。
The microstructure of Fe-23Mn twinning induced plastic （TWIP） steel during tensile deformation was investigated with in-situ SEM observation. The results show that the Fe-23Mn TWIP steel deformation process was carried out by the slips and the twins. In which mainly is the slipping, auxiliary by twins distortion. In order to relax the stress concentration which the slipping is blocked in the grains with twin started to deform and work harden. In the process of stretch, second deformed twins will be found. The twins which is newborn and secondary may pass through alternately corresponding to refined grains.
出处
《热加工工艺》
CSCD
北大核心
2009年第12期55-57,共3页
Hot Working Technology
