摘要
针对强流脉冲电子束 (HCPEB)表面改性的特点 ,采用适当的数学模型和数值模拟的方法 ,对9Cr1 8钢经Ti离子注入后又使用强流脉冲电子束表面辐照处理中产生的增强扩散效应进行了研究 ,计算结果与实验结果较为吻合。分析表明 ,扩散激活能的下降是导致增强扩散的主要原因 ,这与HCPEB改性过程产生的非平衡辐照缺陷浓度密切相关。
Numerical simulation was carried out to describe the enhanced diffusion effect associated with the bombardment of High Current Pulsed Electron Beam (HCPEB). It is shown that the reduced diffusion activation energy is one of the main reasons that lead to the enhanced diffusion. This decrease is related to high concentrations of non equilibrium defects induced by the HCPEB irradiation post treatment. The experimental results from a Ti implanted 9Cr18 steel post treated with HCPEB irradiations are compared with the calculated results.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2003年第2期70-74,共5页
Transactions of Materials and Heat Treatment
