WC-Ni基硬质合金的基础研究进展  

Progress in Fundamental Research of WC-Ni-based Cemented Carbides

作　　者：张立[1] 崔焱茗 聂仁鑫 徐涛[2,3] 张维 龙坚战[2,3] 刘向中[2,3] Zhang Li;Cui Yanming;Nie Renxin;Xu Tao;Zhang Wei;Long Jianzhan;Liu Xiangzhong(State Key Laboratory of Powder Metallurgy,Central South University,Changsha Hunan 410083,China;State Key Laboratory of Cemented Carbide,Zhuzhou Hunan 412000,China;Zhuzhou Cemented Carbide Group Co.,Ltd.,Zhuzhou Hunan 412000,China;China National Nuclear Power Operation Management Co.,Ltd.,Haiyan Zhejiang 314300,China)

机构地区：[1]中南大学粉末冶金国家重点实验室,湖南长沙410083 [2]硬质合金国家重点实验室,湖南株洲412000 [3]株洲硬质合金集团有限公司,湖南株洲412000 [4]中核核电运行管理有限公司,浙江海盐314300

出　　处：《硬质合金》2024年第3期237-251,共15页Cemented Carbides

基　　金：湖南省重大科技攻关“揭榜挂帅”制项目(2023ZJ1050);湖南省重点研发计划项目(2023GK2091);中国工程院咨询研究项目(2023−XY−18);中南大学研究生校企联合创新项目(2023XQLH089)。

摘　　要：WC-Ni基硬质合金可应用在磁性材料成形模具和核主泵机械密封关键部件等极端工况领域。由于材料体系的本征特性,WC-Ni基硬质合金的高性能化和质量稳定性控制一直面临挑战。两相区碳窗口、固液转变温度、液相烧结过程中的润湿行为,以及合金组元在黏结相中的固溶特性,是硬质复合材料成分及其制备工艺设计的关键参数。本文以制备工艺体系最完善的WC-Co基硬质合金为参比对象,从上述4个方面对WC-Ni基硬质合金的本征特性及其研究进展进行综述,旨在强化对WC-Ni基硬质合金本征特性的理解,为高性能WC-Ni基硬质合金新材料高效开发提供参考。WC-Ni-based cemented carbides can be applied in extreme working conditions such as magnetic material forming dies and key component of the mechanical seal of nuclear main pump.Nonetheless,the high performance and quality stability control of WC-Ni-based cemented carbides has been challenging due to the intrinsic nature of the material system.The carbon window in the two-phase region,the solid-liquid transition temperature,the wetting behavior during liquid-phase sintering,and the solid-solution characteristics of alloy components in the binder phase are key parameters for the composition and preparation process design of the hard composite material.Taking the WC-Co-based cemented carbides with the most complete preparation process as the reference,we summarize the intrinsic properties and research progress of WC-Ni-based cemented carbides in the above four aspects,aiming to lay the foundation for the efficient development of new high-performance WC-Ni-based cemented carbides.

关 键 词：WC-Ni基硬质合金 材料设计 工艺设计 相图 润湿行为 黏结相固溶特性 

分 类 号：TG135.5[一般工业技术—材料科学与工程]