Analysis of local characteristics and microstructure of dissimilar metal interface in scrubbing refill friction stir spot welding joint

被引：1

作者：

Takeoka, Naoki ^{[1
,2
]}

Tsuchida, Taisuke ^{[1
]}

Matsuda, Tomoki ^{[1
]}

Ogura, Tomo ^{[1
]}

Ohashi, Ryoji ^{[2
]}

Hirose, Akio ^{[1
]}

机构：

[1] Osaka Univ, Osaka, Japan

[2] Kawasaki Heavy Ind Co Ltd, Minato, Japan

来源：

WELDING INTERNATIONAL | 2022年 / 36卷 / 09期

关键词：

Dissimilar metal joining; friction stir spot welding; refill friction stir spot welding; interfacial strength; microscale testing; ALUMINUM-ALLOY; BEHAVIOR;

D O I：

10.1080/09507116.2022.2125652

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Friction stir spot welding (FSSW) is one of the solid-state welding methods and dissimilar material joining by FSSW has been investigated. 'Scrubbing refill FSSW (Sc-RFSSW)' has developed as a new dissimilar material joining method, and it was shown that Sc-RFSSW provides higher joint strength than conventional FSSW methods in joining the aluminum alloy and non-coated steel. In this study, the microscale testing was performed to evaluate the dissimilar material interfacial strength of Sc-RFSSW joints. The relationship between the interfacial strength distribution and the macroscopic strength of the Sc-RFSSW joint was analyzed. In addition, the microstructure of the dissimilar material interface was observed, and the relationship between the microstructure and the interface strength was shown.

引用

页码：555 / 567

页数：13

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