Two pass laser welding of TC4 titanium alloy and 304 stainless steel using TA2/Q235 composite interlayer

被引：46
作者：
Gao, YiDi [1 ]
Zhou, JianPing [1 ]
Zhang, Yan [1 ]
Sun, DaQian [2 ]
Li, HongMei [2 ]
机构：
[1] Xinjiang Univ, Sch Mech Engn, Urumqi 830000, Peoples R China
[2] Jilin Univ, Sch Mat Sci & Engn, Key Lab Automobile Mat, Changchun 130022, Jilin, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 255卷
关键词：
TC4 Ti alloy; 304 stainless steel; Composite interlayer; Welding; Microstructure; Tensile strength; TI;
D O I：
10.1016/j.matlet.2019.126521
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, TA2/Q235 was used as an composite interlayer to prevent the formation of these brittle Ti-Fe intermetallics when joining TC4 Ti alloy to 304 stainless steel (SS). The TA2/Q235 composite interlayer was prepared by explosive welding. The laser was focused on the TC4-TA2 interface, which joined the TC4 and TA2 by fusion welding. At TC4-TA2 interface, a weld zone was formed due to the mixing of molten TC4 and TA2. The laser was focused on the Q235-304 SS interface, a weld zone was formed due to the mixing of molten Q235 and 304 SS. Composite interlayer TA2/Q235 was used to prevent the formation of Ti-Fe intermetallics during welding and improve microstructure and properties of the Ti alloy-SS joint. The joint fractured at the TA2/Q235 explosive welding interface with the maximum tensile strength of 548 MPa. (C) 2019 Elsevier B.V. All rights reserved.
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页数：4
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