摘要
简要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。我们通过SEM、TEM、EDAX、穆斯堡尔谱实验、电子探针等方法对高锰钢进行研究分析后认为上述几种机理在不同条件下都对高锰钢加工硬化起不同程度的作用,我们也发现随高锰钢中的锰、碳含量的增加高锰钢表现出更好的加工硬化能力,我们认为是由于对高锰钢加工硬化起主要作用的Fe-Mn-C原子团而引起的。
In this article,the author introduce the six principal supposition on the mecha-nisms of work hardening of austenitic manganese steel,i.e,the strengthening by deformation marten-site,the strengthening by deformation twinning,the strengthening by high dislocation density,the sterengthening 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.Af-ter 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 increas-ing 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.
出处
《凿岩机械气动工具》
2002年第4期42-46,共5页
Rock Drilling Machinery & Pneumatic Tools
