高锰钢加工硬化机理研究

介绍了关于高锰钢加工硬化机理的几个假说 :形变马氏体硬化假说、孪晶硬化假说、高位错密度硬化假说、动态应变时效硬化假说、综合作用硬化假说、Fe -Mn -C原子团硬化假说。通过对高锰钢进行SEM、TEM、EDAX、穆斯堡尔谱实验、电子探针等方法进行研究分析后认为 ,上述几种机理在不同的条件下都对高锰钢加工硬化起不同程度的作用 ,同时也发现 ,随高锰钢中的Mn、C含量增加 ,高锰钢表现出更好的加工硬化能力 ,我们同意是由于对高锰钢加工硬化起主要作用是Fe -Mn -C原子团而引起的。

Research hardening austenitic steel development

In this article,the author introduces the six principal supposition on the mechanisms of work hardening of austenitic manganese steel,i.e,the strengthening by deformation martensite,the strengthening by deformation twinning the strengthening by high dislocation density,the strengthening by dynamic strain ageing,the strengthening by collection,the strengthening by atomic mass,the strengthening by Fe-Mn-C atomic mass.We have researched austenitic manganese steel through SEM,TEM,EDAX,Electron Probe.After we had researched austenitic manganese steel we think those mechanisms of work hardening of austenitic manganese steel have different use on the different conditions,and we find when increasing Mn,C hardening of austenitic manganese steel is obviously,too.The conclusion is that all the above mentioned mechanisms can play their roles in the work hardening of AMS and we agree on the predominating one is the mechanism of work hardening of Fe-Mn-C atomic mass.