Revealing distinct corrosion mechanisms of soluble as-extruded Mg–Er–Ni alloy with LPSO and Mg2Ni phase in different orientations

Chaoneng Dai; Sanlue Pei; Kai Ma; Ye Wang; Danqian Wang; Jinxing Wang; Yanlong Ma; Jingfeng Wang

Journal of Materials Research and Technology (Sep 2023)

Revealing distinct corrosion mechanisms of soluble as-extruded Mg–Er–Ni alloy with LPSO and Mg2Ni phase in different orientations

Chaoneng Dai,
Sanlue Pei,
Kai Ma,
Ye Wang,
Danqian Wang,
Jinxing Wang,
Yanlong Ma,
Jingfeng Wang

Affiliations

Chaoneng Dai: College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, PR China; National Engineering Research Center for Magnesium Alloys, Chongqing, 400044, PR China
Sanlue Pei: College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, PR China; National Engineering Research Center for Magnesium Alloys, Chongqing, 400044, PR China
Kai Ma: College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, PR China; National Engineering Research Center for Magnesium Alloys, Chongqing, 400044, PR China
Ye Wang: College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, PR China; National Engineering Research Center for Magnesium Alloys, Chongqing, 400044, PR China
Danqian Wang: College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, PR China; National Engineering Research Center for Magnesium Alloys, Chongqing, 400044, PR China; Corresponding author. College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, PR China.
Jinxing Wang: College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, PR China; National Engineering Research Center for Magnesium Alloys, Chongqing, 400044, PR China
Yanlong Ma: College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, PR China
Jingfeng Wang: College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, PR China; College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, PR China; National Engineering Research Center for Magnesium Alloys, Chongqing, 400044, PR China; Corresponding author. College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, PR China.

Journal volume & issue: Vol. 26
pp. 1903 – 1921

Abstract

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The effects of Er and Ni content on the microstructure evolution, corrosion mechanism of Mg–Er–Ni alloys with different orientations were investigated. With the increase of Er and Ni content, the corrosion rate of extrusion direction (ED) increases, while transverse direction (TD) is reversed, which may be due to the distinct corrosion mechanism in different orientations, where ED and TD exhibit soluble and corrosion-resistant mechanism, respectively. Moreover, high content second phase alloy with a large deformation grain fraction and low levels second phase alloy with fully recrystallized grains have larger and smaller corrosion rate differences in ED and TD, respectively.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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