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Improvement of Mechanical Properties and Corrosion Resistance of As-Extruded Mg-2Zn-2Al-0.3Mn Alloy Through Y Addition

Wang, Yuhui; Yao, Huai; Zhao, Yanchun; Zhang, Xueying; Zha, Xiaoqin; Xiong, Yi; Cao, Wei; Wang, Shubo (2024-11-30)

 
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: 30.11.2025
URL:
https://doi.org/10.1002/adem.202402093

Wang, Yuhui
Yao, Huai
Zhao, Yanchun
Zhang, Xueying
Zha, Xiaoqin
Xiong, Yi
Cao, Wei
Wang, Shubo
Wiley-VCH Verlag
30.11.2024

Wang, Y., Yao, H., Zhao, Y., Zhang, X., Zha, X., Xiong, Y., Cao, W. and Wang, S. (2025), Improvement of Mechanical Properties and Corrosion Resistance of As-Extruded Mg–2Zn–2Al–0.3Mn Alloy Through Y Addition. Adv. Eng. Mater., 27: 2402093. https://doi.org/10.1002/adem.202402093

https://rightsstatements.org/vocab/InC/1.0/
© 2024 Wiley-VCH GmbH. This is the peer reviewed version of the following article: Wang, Y., Yao, H., Zhao, Y., Zhang, X., Zha, X., Xiong, Y., Cao, W. and Wang, S. (2025), Improvement of Mechanical Properties and Corrosion Resistance of As-Extruded Mg–2Zn–2Al–0.3Mn Alloy Through Y Addition. Adv. Eng. Mater., 27: 2402093. https://doi.org/10.1002/adem.202402093. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
https://rightsstatements.org/vocab/InC/1.0/
doi:https://doi.org/10.1002/adem.202402093
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https://urn.fi/URN:NBN:fi:oulu-202412107142
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Abstract

The microstructure of as-extruded Mg–2Zn–2Al–0.3Mn–xY (0 ≤ x ≤ 5 wt%) alloys are investigated, revealing the influence of grain size and second-phase particle size on the mechanical properties and corrosion resistance of alloys. Additionally, the alloy composition is optimized. In the results, it is indicated that all alloys undergo complete dynamic recrystallization. The average dynamic recrystallization grain size decreases, accompanied by the appearance of Al2Y and (Al, Zn)11Y3 particles whose contents and sizes increase as Y content increases. Therefore, the mechanical properties improve due to fine grain strengthening and fine particle dispersion strengthening, while corrosion resistance benefits also from the grain refinement at Y contents between 0 and 3 wt%. A rapid increase in size and number of larger second-phase particles leads to a decrease in the alloys’ mechanical properties corrosion resistance, with excess addition of Y. Accordingly, an optimized Y addition is determined to be 3 wt% in this study.
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