Phase Equilibria of the Er-Al-Zr Ternary System at 500 °C

期刊论文
发表日期：

2024年7月5日

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Enlang Feng,
Rui Zhang,
Yanbin Kang,
Fangyu Gan,
Qingrong Yao,
Zhao Lu,
Zhimao Lu,
Zongning Chen,
Caimin Huang,
Huaiying Zhou,
Liying Luo

摘要

The phase equilibria of the Er-Al-Zr ternary system at 500 °C were investigated using a combination of electron probe microanalyzer and x-ray diffraction. The microstructure and diffraction peaks were analyzed to determine the phases and compositions of Er-Al-Zr ternary system. Based on the experimental results, the isothermal phase diagram of the Er-Al-Zr ternary system consists of 14 three-phase equilibrium regions, 15 two-phase equilibrium regions, and 13 stable binary compounds, but no ternary compounds were detected. The solubility of Er in the Al₂Zr, Al₃Zr₂, AlZr, Al₃Zr_4, Al₂Zr₃ is 9.9, 5.3, 9.0, 12.4, 6.7 at.%, respectively. The present work could be important for alloy design of Al-based alloys and thermodynamic analysis of the Er-Al-Zr ternary system.