Effect of heat treatment on microstructure of Mg-Gd-Y-Zr alloy

doi:10.13251/j.issn.0254-6051.2024.05.015

Heat Treatment of Metals ›› 2024, Vol. 49 ›› Issue (5): 94-99.DOI: 10.13251/j.issn.0254-6051.2024.05.015

• PROCESS RESEARCH • Previous Articles Next Articles

Effect of heat treatment on microstructure of Mg-Gd-Y-Zr alloy

Wang Haoyu¹, Li Hairan², Gao Yonghao¹

1. School of Materials Science and Engineering, Central South University, Changsha Hunan 410083, China;
2. Beijing Institute of Remote Sensing Equipment, Beijing 100143, China

Received:2023-10-15 Revised:2024-04-01 Online:2024-05-25 Published:2024-06-28

Abstract

Abstract: Mg-Gd-Y-Zr alloy was annealed at 350 ℃, and the surface oxidation behavior during the annealing process was systematically characterized using optical microscope, scanning electron microscope, and X-ray diffraction. The results show that significant changes occur in the alloy during the annealing process, with Gd and Y elements aggregating along the initial grain boundaries and alloy surface. The specimen undergoes uneven oxidation, where the oxidation rate at the initial grain boundary is higher than that inside the grain. The main component of the oxide film is (Gd_x,Y_2-x)O₃.

Key words: Mg-Gd-Y-Zr alloy, high temperature annealing, (Gd_x,Y_2-x)O₃ oxide film

CLC Number:

TG146

Wang Haoyu, Li Hairan, Gao Yonghao. Effect of heat treatment on microstructure of Mg-Gd-Y-Zr alloy[J]. Heat Treatment of Metals, 2024, 49(5): 94-99.

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Effect of heat treatment on microstructure of Mg-Gd-Y-Zr alloy

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