论文部分内容阅读
用声发射、定量金相等方法研究了室温单向压缩条件下，１８Ｃｒ２Ｎｉ４ＷＡ用碳氮共渗层中残余奥氏体发生的形变诱发马氏体相变动力学，推导出相变动力学方程并用定量金相测定结果加以验证，结果表明，共渗层中残余奥氏体在形变过程中发生马氏体相变，在弹性应力范围内仅形成少量应力协助马氏体，塑变开始后，才发生明显的应变诱发马氏体相变。
The deformation induced martensitic transformation kinetics of residual austenite in 18Cr2Ni4WA for carbonitrided layer under room temperature uniaxial compression was studied by acoustic emission and quantitative gold method. The kinetic equation of phase transformation The results show that the retained austenite in the co-infiltrated layer undergoes martensitic transformation during the deformation process, and only a small amount of stress is formed in the elastic stress range to assist the martensite. The strain induced martensitic transformation.