Phase equilibria investigation of the Al-Ni-Er ternary system at 600 °C and 700 °C

被引：6
|
作者：
Zhao, Fenyan [1 ]
Zhang, Ligang [1 ]
Wang, Hang [2 ]
Liu, Libin [1 ]
机构：
[1] Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China
[2] Jiangxi Univ Sci & Technol, Inst Engn Res, Sch Mat Sci & Engn, Ganzhou 341000, Jiangxi, Peoples R China
来源：
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2021年 / 75卷
基金：
中国国家自然科学基金;
关键词：
Al-Ni-Er system; Phase equilibria; Solid solubility; Isothermal section; Aluminum alloys; GLASS-FORMING ABILITY; THERMODYNAMIC ASSESSMENT; CRYSTAL-STRUCTURE; AMORPHOUS-ALLOYS; HIGH-STRENGTH; ALUMINUM; RE; CRYSTALLIZATION; BEHAVIOR; ELEMENTS;
D O I：
10.1016/j.calphad.2021.102353
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Phase equilibria of the Al-Ni-Er ternary system at 600 degrees C and 700 degrees C were experimentally investigated through X-ray diffraction, scanning electron microscopy and electron probe micro-analysis. New ternary compounds tau 11AlNiEr4, tau 12-AlNi6Er13 and tau 13-AlNi2Er were discovered in the equilibrated alloy samples. Compounds tau 5, tau 10, tau 13, AlNi3, AlNi, Al3Ni2, Al2Er, ErNi2 and ErNi5 have a certain range of solid solubility. The solid solubility of Ni in Al2Er is 10.3 at.% and 11.25 at.% at 600 degrees C and 700 degrees C, respectively. The solid solubility of Al in ErNi2 is 3.6 at.% and 5.09 at.% at 600 degrees C and 700 degrees C, respectively. Experiments have verified that CaCu5-ErNi5 is a continuous solid solution and the maximum solubility of Al is up to 33.33 at.%.
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页数：17
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