Study on Diffusion Model of W-Mo-Dy Multi-elements Co-diffusion
Diffusion mechanism of rare earth Dy, glow discharge and hollow cathode effect, surface vacancy distribution of W-Mo alloying layer and W-Mo-Dy alloying layer formed on surface of carbon steel by using glow plasma surface alloying technique were studied, and the activation energy of diffusion was calculated by Fick”s Second Law.It was shown that under the conditions of ion bombardment and non-balance, the alloy elements put effect on concentration gradient, vacancy concentration and activation energy of diffusion of each other, made diffusion velocity of Dy increased and promoted the diffusion of W, Mo.Through analysis that the rare earth has two possible diffusion model: the Vacancy Exchange Diffusion during preliminary stage, and Rare earthVacancy Complexes Diffusion once the diffusion process is progressed far enough.
Rare earth Diffusion Vacancy Sputtering Non-balance
Wen Zhu Wei Yuan Gao Wei Zhang Xiao Hui Lu Guang Yao Zhang Yan Zhang Wei Qin Wu
School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China
国内会议
西安
英文
113-118
2013-10-25（万方平台首次上网日期，不代表论文的发表时间）