Joining Dissimilar Mg/Al Alloys by Solid-State Friction Spot Welding

被引：2

作者：

Chai, Peng ^{[1
,2
]}

Yang, Kang ^{[3
]}

Ji, Shude ^{[3
]}

Ai, XinXin ^{[3
]}

Lv, Zan ^{[3
]}

Song, Qi ^{[3
]}

机构：

[1] AVIC Mfg Technol Inst, Beijing, Peoples R China

[2] Beihang Univ, Sch Mech Engn & Automat, Beijing, Peoples R China

[3] Shenyang Aerosp Univ, Sch Aerosp Engn, Shenyang 110136, Liaoning, Peoples R China

来源：

JOM | 2019年 / 71卷 / 05期

关键词：

ALUMINUM-ALLOY; MECHANICAL-PROPERTIES; MICROSTRUCTURE; MAGNESIUM; MG; AL;

D O I：

10.1007/s11837-019-03401-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To reduce intermetallic compounds (IMCs), dissimilar Mg/Al alloys were joined by solid-state friction spot welding. No incomplete refilling was observed when Al sheet served as the upper sheet. Almost no IMCs formed at the sleeve-affected zone even though the sleeve plunged during welding. A 530-mu m-thick Al12Mg17 layer formed at the center of the Al/Mg joint due to a large amount of liquid phase formed during welding. Only a 5-mu m-thick Al3Mg2 layer formed in the Mg/Al joint because the oxide film on the Al sheet was difficult to break. The Al/Mg joint exhibited much higher lap shear failure load even though it had a thicker IMC layer. The joint formation mechanism was studied.

引用

页码：1760 / 1767

页数：8

共 27 条

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