The influence of the Y element on fine texture and corrosion behavior of foundry Mg-5Al-2Zn-0.2Mn alloys

Xiaoyu Yang; Guo Qi; Li Jun Zhang; Li De Zhu; Jingjie Kang; Xiaohu Chen; Yan Zhao; Ruolan Wang; Tianhao Zhao; Xiaojie Yang

doi:10.1117/12.3015517

6 February 2024 The influence of the Y element on fine texture and corrosion behavior of foundry Mg-5Al-2Zn-0.2Mn alloys

Xiaoyu Yang, Guo Qi, Li Jun Zhang, Li De Zhu, Jingjie Kang, Xiaohu Chen, Yan Zhao, Ruolan Wang, Tianhao Zhao, Xiaojie Yang

Author Affiliations +

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 1297937 (2024) https://doi.org/10.1117/12.3015517
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

Mg-5Al-2Zn-0.2Mn alloys with Y contents of 0, 0.2, 0.3, 0.4, and 0.5 wt.% were prepared by gravity casting. The influence of Y content on magnesium alloys’ fine texture and corrosion behavior was studied by detections. The experimental results indicate that the magnesium metal structure without Y mainly consists of the magnesium matrix phase and continuous or semi-continuous β-phase Mg₁₇(Al, Zn)₁₂ distributed in the grain boundary and matrix. The addition of Y disrupted the continuity of βMg₁₇ (Al, Zn)₁₂. When Y was added 0.5 wt.%, the mesh β-phase was destroyed and distributed in uniform granular form, and a new phase (MgAl₄Y) was formed. Salt spray and electrochemical tests show that the corrosion behavior is the greatest while the alloy is III. XRD data show that magnesium alloy’s metal surface membrane layer mainly consists of MgO, MgOꞏH₂O, and contains a bit of MgCO₃, Al₂O₃, and Y₂O₃.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Xiaoyu Yang, Guo Qi, Li Jun Zhang, Li De Zhu, Jingjie Kang, Xiaohu Chen, Yan Zhao, Ruolan Wang, Tianhao Zhao, and Xiaojie Yang "The influence of the Y element on fine texture and corrosion behavior of foundry Mg-5Al-2Zn-0.2Mn alloys", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 1297937 (6 February 2024); https://doi.org/10.1117/12.3015517

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