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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.