大气环境电子束材料表面强化机理数值模拟

Numerical simulation for mechanism of material surface hardening by high energy electron beam in atmosphere

建立了大气环境电子束材料表面强化过程的多阶段数值模型,用于对电子束与材料表面层的相互作用过程和结构与相变过程进行研究。通过应用这一模型,使得对材料表面强化中电子束传输、温度演化和相变动力学等多参数研究成为可能,由此建立了电子束输入参数与结构相变结果之间的关系。

A robust multi-stage numerical model is established to analyze the interaction process and phase-structure transform which occurs in the material surface layer during the material surface hardening by means of electron beam. By the model, it gives a calculation ability of the model to deal with the multi-parameter problem arising from electron beam transportation, temperature evolution and phase transform dynamics. The relationship between the input parameters and formation of struc- ture-phase is obtained.