Diffusion Behavior of Aluminum Atoms in Hot Dip RE-Aluminizing

摘要：

The pure aluminized layer and RE-aluminized layer on industrial pure iron were prepared by hot dip aluminizing method, and the thickness and composition of the layer were investigated by means of scanning electronic microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. The results showed that the RE was permeated into the alloy layer after hot dip RE-aluminizing and the thickness of the alloy layer increases by about 30％ as against hot dip pure aluminizing. The binding energy between the vacancy and aluminum atom was calculated. According to the energy condition of the solute-vacancy complex diffusion, it points out that the solute-vacancy complex diffusion is the main mechanism of aluminum atoms diffusion in hot dip RE-aluminizing and the main reason why the thickness of alloy layer increases after hot dip RE-aluminizing.

关键词： Rare Earth Hot Dip Aluminizing Solute Vacancy Diffusion

作者: Wei Zhang Aiping Liu Wenzhong Jin

作者单位: Department of Mechanical and Electrical Engineering, Luoyang Institute of Science and Technology, Lu Department of Mechanical and Electrical Engineering, Luoyang Institute of Science and Technology, Lu

会议类型: 国际会议

会议名称: 2011 International Conference on Mechatronics and Materials Processing(2011年机电一体化与材料加工国际会议 ICMMP)

会议地点: 广州

会议语种:英文

页码: 1523-1527

在线出版日期: 2011-11-18（万方平台首次上网日期，不代表论文的发表时间）