WC-Co合金中立方相与杂质相的识别和分析  

Identification and Analysis of Cubic Phases and Impurity Phases in WC-Co Cemented Carbides

作　　者：陈川兰 田雷 黄新 Chen Chuanlan;Tian Lei;Huang Xin(Zigong Cemented Carbide Co.Ltd.,Zigong Sichuan 643011,China;Faculty of Chemical Engineering,Sichuan University of Science&Engineering,Zigong Sichuan 643000,China)

机构地区：[1]自贡硬质合金有限责任公司,四川自贡643011 [2]四川轻化工大学化学工程学院,四川自贡643000

出　　处：《硬质合金》2023年第1期73-79,共7页Cemented Carbides

摘　　要：本文采用金相、扫描电镜及能谱分析方法,研究了WC-Co合金的立方相、再生合金的杂质相,对其进行识别和分析,并探讨了立方相的微观结构及其作用机理,为公司生产工艺控制提供数据支持。结果表明:在合金中加入的添加剂TaC、NbC等形成(Ta,Nb,W)C立方晶体碳化物的立方相,再生合金杂质元素构成含杂质元素的氧化物、氯化物的杂质相,利用SEM及EDS可以识别和分析合金中的立方相及杂质相。In this paper,metallography,scanning electron microscopy(SEM),and energy spectrum analysis were conducted to study the cubic phases of the WC-Co cemented carbides and the impurity phases of regenerated cemented carbides.Specifically,the paper identified and analyzed these phases and discussed the microstructures and action mechanisms of the cubic phases to provide data support for the production process control of the company.The results show that the additives TaC and NbC added into the cemented carbides form the cubic phases in the form of(Ta,Nb,W)C cubic crystal carbides,and the impurity elements in regenerated cemented carbides constitute the impurity phases in the form of oxides and chlorides containing the impurity elements.The cubic phases and impurity phases in cemented carbides can be identified and analyzed by SEM and energy dispersive X-ray spectroscopy(EDS)

关 键 词：硬质合金 立方相 杂质相 

分 类 号：TG135.5[一般工业技术—材料科学与工程]