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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：材料科学与工程学院党委书记
其他任职：Chair
性别：男
毕业院校：哈尔滨工业大学
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：大连理工大学材料科学与工程学院铸造中心304室
联系方式：Tel: 86 411 84706283
电子邮箱：donghg@dlut.edu.cn
论文成果
当前位置: Dong Honggang >> 科学研究 >> 论文成果Effects of post-weld heat treatment on dissimilar metal joint between aluminum alloy and stainless steel
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论文类型：期刊论文
发表时间：2012-07-30
发表刊物：MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
收录刊物：SCIE、EI
卷号：550
页面范围：423-428
ISSN号：0921-5093
关键字：Aluminum; Steel; Welding; Post-weld heat treatment; Microstructure; Mechanical properties
摘要：Lap joining of 5A02 aluminum alloy to 304 stainless steel sheets was conducted by gas tungsten arc welding with Zn-15%Al flux-cored filler wire, and the effects of the temperature and duration time during post-weld heat treatment on the microstructure and mechanical properties of the resultant joints were investigated. The experimental results show that the concentration and size of the Zn-rich phases in the weld, especially along the weld/steel interface, changed with different temperature and duration time, and consequently affected the joint strength. The fine Zn-rich phases uniformly distributed in the weld could enhance the joint strength; however, the coarse Zn-rich phases along the interfacial layer would degrade the bonding strength of the interfacial layer. The fractured surfaces of the specimens after tensile testing were also examined. (C) 2012 Elsevier B.V. All rights reserved.