标题:Pulsed TIG Welding-Brazing of Aluminum-Stainless Steel with an Al-Cu Twin Hot Wire
作者:He, Huan; Wu, Chuansong; Lin, Sanbao; Yang, Chunli
通讯作者:He, Huan;He, H;He, H
作者机构:[He, Huan; Wu, Chuansong] Shandong Univ, Inst Mat Joining, MOE Key Lab Liquid Solid Evolut & Mat Proc, Jinan 250061, Shandong, Peoples R China.; [He 更多
会议名称:Symposium on Additive Manufacturing (AM) of Metals - Microstructure and Materials Properties held during MS and T Symposium
会议日期:OCT 08-12, 2017
来源:JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
出版年:2019
卷:28
期:2
页码:1180-1189
DOI:10.1007/s11665-018-3848-y
关键词:aluminum alloy; intermetallic; stainless steel; TIG welding-brazing;; twin hot wire
摘要:A TIG welding-brazing process with a twin aluminum hot wire technique was utilized to control the heat input, improve the joint formation, suppress the interfacial intermetallic compounds (IMCs) and increase the joint strength, thereby creating reliable joints between an aluminum alloy and stainless steel with an ER2319 filler. Twin wires with reasonable diameters and filling modes led to a satisfactory weld of parent metals with varying thicknesses. By the hot wire technique, the reasonable range of the welding current was extended and the thickness of the interfacial IMC at the seam bottom was reduced. In addition, both the tensile strength and stability of the joints increased compared with a cold wire. The IMC consisted of -(Fe,Cu)(4)Al-13 and minor Cr0.7Fe0.3Al6, and the precipitated phases in the weld were Al2Cu and Al2CuMg. With an increasing welding current, the IMC thickness significantly increased, while the joint strength decreased. The fracture positions of the joints varied with the corresponding welding currents.
收录类别:CPCI-S;EI;SCOPUS;SCIE
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059564462&doi=10.1007%2fs11665-018-3848-y&partnerID=40&md5=302d2e9d9ff4ddb7b5e0d0a23eeda5d3
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