个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:材料科学与工程学院
学科:材料连接技术
办公地点:材料学院铸造工程中心406
联系方式:0411-84707817
电子邮箱:songgang@dlut.edu.cn
Post-heat treatment of arc-sprayed coating prepared by the wires combination of Mg-cathode and Al-anode to form protective intermetallic layers
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论文类型:期刊论文
发表时间:2011-01-15
发表刊物:APPLIED SURFACE SCIENCE
收录刊物:SCIE、EI
卷号:257
期号:7
页面范围:3097-3102
ISSN号:0169-4332
关键字:Intermetallics compounds coating; Arc spray processing; Post-heat treatment; Diffusion
摘要:A Mg-Al intermetallic compounds coating was prepared on the surface of Mg-steel lap joint by arc-sprayed Al-Mg composite coating (Mg-cathode and Al-anode) and its post-heat treatment (PHT). The effect of PHT temperature on the phase transition, microstructure and mechanical properties of the coating was investigated by X-ray diffraction, scanning electron microscope, energy dispersive X-ray spectroscopy, optical microscope and microhardness test. The result shows that the intermetallic compounds layer that is mainly composed of Al(3)Mg(2) and Mg(17)Al(12) is formed by the self-diffusion reaction of Mg and Al splats in the coating after PHT for 4 h at 430 degrees C. (C) 2010 Elsevier B.V. All rights reserved.