在对变形过程和变形过程中产生的组织转变进行计算机模拟的基础上 ,介绍了借助等离子硬化技术控制机车车轮制造和运营过程中的应力 -应变和组织状态的方法的进展。作者认为等离子硬化处理后机车车轮轮箍的轮缘应力 -应变和组织状态发生了极大的变化 ,其可能是轮箍在运行过程中形成脆性断裂的原因 Based on the computer simulation of the deformation and deformation during the deformation process, the progress of the method of controlling the stress-strain and microstructure during the manufacture and operation of locomotive wheels by plasma hardening technology is introduced. The author believes that the stress-strain and microstructure of the wheel rim of locomotive wheels have changed greatly after the plasma hardening process, which may be the reason of the brittle fracture of wheel rim during operation