Effect of the Al–Si eutectic on the microstructure and corrosion behavior of the single-phase Mg alloy Mg–4Li

Cheng Zhang; Liang Wu; Zilong Zhao; Guangsheng Huang; Bin Jiang; Andrej Atrens; Fusheng Pan

Journal of Magnesium and Alloys (Jul 2021)

Effect of the Al–Si eutectic on the microstructure and corrosion behavior of the single-phase Mg alloy Mg–4Li

Cheng Zhang,
Liang Wu,
Zilong Zhao,
Guangsheng Huang,
Bin Jiang,
Andrej Atrens,
Fusheng Pan

Affiliations

Cheng Zhang: State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, 174 Shazhengjie, Shapingba, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China
Liang Wu: State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, 174 Shazhengjie, Shapingba, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China; Corresponding authors at: State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, 174 Shazhengjie, Shapingba, Chongqing University, Chongqing 400044, China.
Zilong Zhao: School of Civil Engineering, Chongqing University, Chongqing 400045, China
Guangsheng Huang: State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, 174 Shazhengjie, Shapingba, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China; Chongqing Research Center for Advanced Materials, Chongqing Academy of Science & Technology, Chongqing 401123, China; Corresponding authors at: State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, 174 Shazhengjie, Shapingba, Chongqing University, Chongqing 400044, China.
Bin Jiang: State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, 174 Shazhengjie, Shapingba, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China; Chongqing Research Center for Advanced Materials, Chongqing Academy of Science & Technology, Chongqing 401123, China
Andrej Atrens: School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Qld 4072, Australia
Fusheng Pan: State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, 174 Shazhengjie, Shapingba, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China; Chongqing Research Center for Advanced Materials, Chongqing Academy of Science & Technology, Chongqing 401123, China

Journal volume & issue: Vol. 9, no. 4
pp. 1339 – 1348

Abstract

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The influence of alloying with Al–Si eutectic on the microstructure and corrosion resistance of single-phase Mg–4Li was studied in this paper. The microstructure was characterized using an electron microscopy. The corrosion properties were measured by immersion tests and electrochemical impedance spectrum (EIS) measurements. Alloying with Al–Si eutectic caused the formation of Mg2Si and Mg–Al phase. The grain orientation of Mg–4Li was mainly composed of (0001) while the grain orientation of Mg–4Li–6(Al–Si) was mainly consisted of (10–10) and (11–20). Mg–4Li–6(Al–Si) shows worse corrosion resistance than Mg–4Li owing to the galvanic corrosion from the precipitates and texture change.

Published in Journal of Magnesium and Alloys

ISSN: 2213-9567 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/journal-of-magnesium-and-alloys/

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