Phase stability of Fe_(23)Zr_(6)and thermodynamic reassessment of Fe-Zr system

作     者：Ze-ting Du Lei Zou Cui-ping Guo Xue-ping Ren Chang-rong Li Ze-ting Du;Lei Zou;Cui-ping Guo;Xue-ping Ren;Chang-rong Li

作者机构：Department of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China Northwest Institute for Nonferrous Metal ResearchXi’an 710016ShaanxiChina 

出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)

年 卷 期：2021年第28卷第11期

页      面：1375-1389页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：the major scientific and technological projects in Yunnan Province(Grant No.202002AB080001-1) National Natural Science Foundation of China(NSFC)(Grant No.51671025) 

主　　题：Fe_(23)Zr_(6) Fe–Zr system Thermodynamic parameter CALPHAD method 

摘      要：The stability of the Fe_(23)Zr_(6)phase in Fe–Zr system was studied,and the partial Fe–Zr phase diagram was revised by means of X-ray diffraction,electron probe microanalysis and differential thermal analysis *** the basis of the experimental results in the present work and literature,the Fe–Zr system was reassessed using CALculation of PHAse Diagram(CALPHAD)*** phases,liquid,fcc,bcc and hcp,are modeled as the substitutional *** intermetallic compounds,hex.-Fe_(2)Zr,Fe_(2)Zr,FeZr_(2)and FeZr3 phases,are treated as Fe_(2)(Fe,Zr)1,(Fe,Zr)2(Fe,Zr)1,(Fe,Zr)1Zr_(2)and(Fe,Zr)1(Fe,Zr)3 by a two-sublattice model,*** Fe_(23)Zr_(6)phase is treated as stoichiometric compound.A set of self-consistent thermodynamic parameters of the Fe–Zr system was *** results confirm the stability of Fe_(23)Zr_(6)phase,improve the phase diagram of the Fe–Zr system and provide a theoretical reference for the development of Zr alloys.