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Investigation on microstructure and corrosion behavior of rolled Mg-1.5Zn-xCa-xCe alloy

Cheng Zhang (The Key Laboratory of Chongqing Inorganic Special Functional Materials, Yangtze Normal University, Chongqing, China and School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing and “the Belt and Road (B&R)” International Joint Research Laboratory of Sustainable Materials, Southwest University, Chongqing, China)
Cheng Peng (The Key Laboratory of Chongqing Inorganic Special Functional Materials, Yangtze Normal University, Chongqing, China)
Jin Huang (School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, and “the Belt and Road (B&R)” International Joint Research Laboratory of Sustainable Materials, Southwest University, Chongqing, China and School of Chemistry and Chemical Engineering, and Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Bintuan, Shihezi University, Shihezi, China)
Yanchun Zhao (The Key Laboratory of Chongqing Inorganic Special Functional Materials, Yangtze Normal University, Chongqing, China)
Tingzhuang Han (State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, China)
Guangang Wang (State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing, China)
Liang Wu (State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing, China)
Guangsheng Huang (State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing, China)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 29 April 2022

Issue publication date: 3 June 2022

101

Abstract

Purpose

This study aims to investigate the effect of microalloyed Ca and Ce on microstructure and corrosion behavior of Mg-1.5Zn alloy. Mg-1.5Zn-xCa-xCe alloys were prepared by melting, extrusion and rolling processes.

Design/methodology/approach

The effects of adding Ca and Ce elements alone or adding Ca and Ce elements simultaneously on the microstructure and corrosion resistance of Mg-1.5Zn-xCa-xCe (x = 0 or 0.2 Wt.%) alloys were studied by scanning electron microscopy, hydrogen evolution tests and electrochemical experiments.

Findings

The addition of Ca and Ce elements alone or the addition of Ca and Ce elements had little impact on the grain size of the rolled and annealed Mg-1.5Zn-xCa-xCe alloy, but had a greater effect on the type and quantity of the second phase.

Originality/value

The order of the corrosion rates for the three alloys was Mg-1.5Zn-0.2Ca < Mg-1.5Zn-0.2Ca-0.2Ce < Mg-1.5Zn-0.2Ce. Mg-1.5Zn-0.2Ca showed the best corrosion resistance, which was related to the second phase and corrosion products.

Keywords

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 51905366), the China Postdoctoral Science Foundation (2021M692626), the Project for Chongqing University Innovation Research Group of Chongqing Education Committee (CXQT19008), the Chongqing Talent Plan for Innovation and Entrepreneurship Demonstration Team (CQYC201903243), the S&T Project of Science and Technology Bureau of Bishan District in Chongqing (Bskj20200011).

Citation

Zhang, C., Peng, C., Huang, J., Zhao, Y., Han, T., Wang, G., Wu, L. and Huang, G. (2022), "Investigation on microstructure and corrosion behavior of rolled Mg-1.5Zn-xCa-xCe alloy", Anti-Corrosion Methods and Materials, Vol. 69 No. 4, pp. 395-402. https://doi.org/10.1108/ACMM-02-2022-2610

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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