UMP Institutional Repository

The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints

Hou, Wentao and L. H., Shah and Huang, Guoqiang and Shen, Yifu and Gerlich, Adrian (2020) The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints. Journal of Alloys and Compounds, 825 (154045). pp. 1-30. ISSN 0925-8388 (print), 1873-4669 (online)

[img]
Preview
Pdf
The role of tool offset on the microstructure and mechanical .pdf

Download (554kB) | Preview

Abstract

In this study, dissimilar butt joining of 6061 aluminum alloy and commercially pure copper via friction stir welding was performed with varying tool offset value. The mechanical properties were compared using transverse tensile testing. It was found that as the tool offset decreased from a position of 2 mm–0 mm, the ultimate tensile strength of the welded joint increased, and then decreased drastically when the offset was more than 1.6 mm. X-ray tomography results showed that an effective mechanical interlocking structure was formed with a chaotic interface along the joint line. In addition, in-situ tool temperatures measurement showed that the stir zone peak temperature was highly dependent on tool offset.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Friction stir welding; Intermetallic compounds; Microstructure; Mechanical properties; Temperature
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Faculty/Division: Faculty of Mechanical and Automotive Engineering Technology
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 31 Mar 2020 02:41
Last Modified: 31 Mar 2020 02:41
URI: http://umpir.ump.edu.my/id/eprint/28142
Download Statistic: View Download Statistics

Actions (login required)

View Item View Item