WC-Ni基硬质合金微观结构和物理力学性能调控研究进展  

Research Progress on Microstructure and Physical and Mechanical Properties Control 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4期276-286,共11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基硬质合金用作磁性材料成形模具、核主泵机械密封关键部件以及磨蚀性服役工况耐磨零件独具优势。由于材料体系的本征特性,与WC-Co合金相比,在黏结金属含量相同和合金晶粒度相近条件下,WC-Ni基合金强度、硬度和韧性均明显较低,高性能化面临挑战。本文对WC-Ni三元合金和含其它合金组元WC-Ni基合金的微观结构和物理力学性能调控,以及含Ti板状晶WC-Ni基合金的研究进展进行综述,旨在奠定高性能WC-Ni基硬质合金新材料高效开发的基础。WC-Ni-based cemented carbides exhibit distinct advantages as magnetic material forming dies,key components in the mechanical seals of nuclear main pumps,and wear-resistant components under corrosive service conditions.Due to the intrinsic properties of the material system,the strength,hardness and toughness of WC-Ni-based cemented carbides are significantly lower compared to WC-Co-based cemented carbides with the same binder metal content and similar WC grain size.As a result,their high performance has been challenged.To lay the foundation for the efficient development of novel WC-Ni-based cemented carbides with enhanced performance,in this paper we review the progress on the control of the microstructure and physical and mechanical properties of WC-Ni-based cemented carbides,including WC-Ni ternary alloys,WC-Ni-based cemented carbides with additional alloying components,and plate-grained WC-Ni-based cemented carbides with Ti.

关 键 词：WC-Ni基硬质合金 微观组织结构 物理性能 力学性能 合金添加剂 制备工艺 

分 类 号：TG135.5[一般工业技术—材料科学与工程]