Co-Ni-W三元系相图的实验测定与热力学计算  

Experimental Investigation and Thermodynamic Assessment of the Co-Ni-W Ternary System

作　　者：王翠萍 牛泽明 潘云炜 陈悦超 杨双 郭毅慧 卢勇 韩佳甲 刘兴军 WANG Cuiping;NIU Zeming;PAN Yunwei;CHEN Yuechao;YANG Shuang;GUO Yihui;LU Yong;HAN Jiajia;LIU Xingjun(Fujian Provincial Key Laboratory of Materials Genome,College of Materials,Xiamen University,Xiamen 361005;State Key Laboratory of Advanced Welding and Joining,Department of Materials Science and Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen 518005)

机构地区：[1]厦门大学材料学院,福建省材料基因工程重点实验室,厦门361005 [2]哈尔滨工业大学(深圳)材料科学与工程学院,先进焊接与连接国家重点实验室,深圳518005

出　　处：《材料导报》2019年第20期3460-3466,共7页Materials Reports

基　　金：国家重点研发计划(2016YFB0701401)~~

摘　　要：本研究采用合金法、电子探针显微分析仪(EPMA)和X射线衍射(XRD)技术,对Co-Ni-W三元系在1 000℃和1 200℃下的等温截面相图进行了实验测定。结合本研究和已报道的相平衡实验信息,基于CALPHAD(Calculation of phase diagrams)方法,对Co-Ni-W三元系相图进行了热力学优化与计算,获得了自洽性良好的热力学参数,计算结果与实验数据取得了良好的一致性。The phase relations of the Co-Ni-W ternary system have been experimentally established for the isothermal section at 1 000℃,1 200℃.The investigation was based on metallography,X-ray powder diffraction,SEM and EMPA-techniques.Based on the experimental results from this work and literatures,the Co-Ni-W ternary system was thermodynamically assessed by using CALPHAD(Computer coupling of phase diagrams)method.The calculated results agree well the experimental data.

关 键 词：Co-Ni-W三元系 相图 CALPHAD方法 热力学计算 

分 类 号：TG111.3[金属学及工艺—物理冶金]