Phase diagrams of permanent magnet alloys: Binary rare earth alloy systems

作     者：Kaicheng Yang Jiang Wang Qingrong Yao Zhao Lu Maohua Rong Huaiying Zhou Guanghui Rao 

作者机构：School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials Guilin University of Electronic Technology 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2019年第37卷第10期

页      面：1040-1046页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：Project supported by National Key Research and Development Program of China(2016YFB0700901) National Basic Foundation of China(2014CB643703) National Natural Science Foundation of China(51761008,51461013) Guangxi Natural Science Foundation(2016GXNSFDA380015,2016GXNSFGA380001) Guangxi Project of Science and Technology(2017AD23031) Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology,China(171005-Z) 

主　　题：Permanent magnets Rare earth alloys Phase diagrams CALPHAD 

摘      要：Thermodynamic optimization of the binary rare earth alloy(Cee La, Cee Pr, Cee Nd and Lae Nd) systems was performed in this work through the CALPHAD method based on the critical evaluation of all available phase diagram and thermodynamic data reported in the literature. During the thermodynamic modeling, the solution phases including liquid, bcc, fcc and dhcp, were treated as the substitutional solution model. Thermodynamic parameters of the stable phases in the Cee La, Cee Pr, Cee Nd and Lae Nd binary systems are obtained finally and would be used directly to develop the thermodynamic database of the multi-component Nde Fee B-based alloys, which is indispensable for designing alloy compositions and processes of Nde Fee B permanent magnets with highly abundant rare earth metals.