Influence of electron-beam superposition welding on intermetallic layer of Cu/Ti joint

被引：19

作者：

Chen Guo-qing ^{[1
]}

Zhang Bing-gang ^{[1
]}

Liu Wei ^{[1
]}

Feng Ji-cai ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 10期

关键词：

Cu alloy; Ti alloy; electron beam superposition welding; IMC-layer; TITANIUM-ALLOY; CU; TI;

D O I：

10.1016/S1003-6326(11)61479-9

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

QCr0.8 was electron-beam welded to TC4 and the effect of the intermetallic layer (IMC-layer) on the mechanical properties of the joint was investigated. The IMC-layers are joint weaknesses at the Cu fusion line in centered welding and at the Ti fusion line when the beam is deviated towards Cu. A new method referred to as electron-beam superposition welding was presented, and the optimal welding sequence was considered. The IMC-layer produced by centered welding was fragmented and remelted during Cu-side non-centered welding, giving a finely structured compound layer and improved mechanical properties of the joint. The tensile strength of joint is 276.0 MPa, 76.7% that of the base metal.

引用

页码：2416 / 2420

页数：5

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