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A Review: Effect of Friction Stir Welding on Microstructure and Mechanical Properties of Magnesium Alloys

School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
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Metals 2017, 7(12), 524; https://doi.org/10.3390/met7120524
Received: 13 October 2017 / Revised: 25 November 2017 / Accepted: 22 November 2017 / Published: 25 November 2017
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Abstract

Friction stir welding (FSW) is well recognized as a very practical technology for joining magnesium alloys. Although, a large amount of progress have been made on the FSW of magnesium alloys, it should be emphasized that many challenges still remain in joining magnesium using FSW. In this article, we briefly review the background of friction stir welding of magnesium alloys, and then focus on the effects of the friction stir welding on the macrostructure, microstructure evolution, texture distribution, and the mechanical properties of the welding joints. The macro-defects in welds and their relationship to the welding parameters such as welding speed, rotation speed, and axial force were also discussed. The review concluded with some suggested methods improvement and future challenges related to FSW of magnesium alloys. The purpose of the present review paper is to fully understand the relationships between the microstructure and the properties, and then establish a global, state-of-the-art FSW of magnesium alloys. View Full-Text
Keywords: friction stir welding; magnesium alloy; macrostructure; microstructure; mechanical properties friction stir welding; magnesium alloy; macrostructure; microstructure; mechanical properties
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Li, Y.; Qin, F.; Liu, C.; Wu, Z. A Review: Effect of Friction Stir Welding on Microstructure and Mechanical Properties of Magnesium Alloys. Metals 2017, 7, 524.

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