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Study on microstructure and properties of single?pass online heating rolling of Mn containing magnesium alloy sheets

Mg?2.0Zn?1.5Mn (ZM21) alloy and Mg?1.0Mn?0.5Al (MA10) alloy extruded bars have excellent mechanical properties and low processing cost. In this paper, these two alloys sheets were rolled at different temperatures and reductions by on?line heating rolling. In addition, their mechanical properties and microstructure characteristics were also studied through EBSD. The results show that the yield strength of rolled ZM21 sheets are gradually improved with increasing rolling strain and temperature and further exhibit good comprehensive mechanical properties. The mechanical properties of ZM21 rolled sheets are slightly lower than that of AZ31 rolled sheet, and has the potential to substitute the AZ31 sheet. However, MA10 alloy rolled sheet in this study exhibit poor mechanical properties, indicating the mechanical properties of MA10 alloy highly depend on the microstructures resulting from the processing parameters. The mechanism of poor mechanical properties and different mechanical behavior of extruded bars and extruded sheets are discussed.This article is protected by copyright. All rights reserved.

» Author: Liangyin Wu, Biquan Xiao, Jiangfeng Song, Qiang Liu, Bin Jiang, Jianbo Li, Fusheng Pan

» Publication Date: 09/06/2022

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