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

作　　者：邓永锋[1] 林榕[1] 韩先伟[1] 谭畅[1] R.N.Rizakhanov A.A.Barmin 

机构地区：[1]陕西动力机械设计研究所,陕西西安710100 [2]Keldysh Research Center

出　　处：《火箭推进》2011年第2期60-66,共7页Journal of Rocket Propulsion

基　　金：国家自然科学基金项目(No.10905044,No.50911120076)

摘　　要：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.

关 键 词：材料强化 电子束 数值模型 

分 类 号：TB3[一般工业技术—材料科学与工程]