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Effect of ultrasonic vibration and heat pipe assistance on microstructure and mechanical properties of friction stir-welded AZ31 alloy

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, P. R. China

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Jingmin Yu

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, P. R. China

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Jinhua Peng

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, P. R. China

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Liangyu Chen

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, P. R. China

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Zexin Wang

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, P. R. China

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, and

Sheng Lu

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, P. R. China

E-mail Address: lusheng_ktz@just.edu.cn

Corresponding author.

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https://doi.org/10.1142/S0217979222400483Cited by:0 (Source: Crossref)

This article is part of the issue:

SPECIAL ISSUE (PART 2): Advanced Materials and Processing Technologies
Guest Editors: Wei Gao, Peng Cao, Yuxin Wang and Zhen He

Abstract

This work aims to discover the effects of ultrasonic vibration and heat pipe assistance during the friction stir welding (FSW) of AZ31 magnesium alloy. The microstructure and mechanical properties of FSWed AZ31 alloy were investigated. The ultrasonic vibration and heat pipe assistance can promote the dynamic recrystallization of AZ31 magnesium alloy during the FSW process, which reduces the inhomogeneous microstructure and the grains and weakens the texture intensity of the FSWed AZ31 alloy. The microstructure and texture of the joint are regulated by the ultrasonic vibration and heat pipe assistance, to enhance the tensile strength, elongation and microhardness.

Keywords:

PACS: 81.70.−q, 81.70.Bt

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