热处理对WC-Co硬质合金顶锤组织与力学性能的影响  

Effect of heat treatment on microstructure and mechanical properties of WC-Co cemented carbide anvil

作　　者：郝世明 毛志平[2,3] 谢敬佩 Hao Shining;Mao Zhiping;Xie Jingpei(School of Physics and Engineering,Henan University of Science and Technology,Luoyang Henan 471023,China;School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang Henan 471023,China;Provincial and Ministerial Co-Construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology,Luoyang Henan 471023,China)

机构地区：[1]河南科技大学物理工程学院,河南洛阳471023 [2]河南科技大学材料科学与工程学院,河南洛阳471023 [3]有色金属新材料与先进加工技术省部共建协同创新中心,河南洛阳471023

出　　处：《金属热处理》2023年第6期63-67,共5页Heat Treatment of Metals

基　　金：郑洛新国家自主创新示范区创新引领型产业集群专项(2012002110008);河南省科技攻关项目(222102230088)。

摘　　要：为了消除顶锤加工中引入的加工缺陷,通过对WC-Co硬质合金顶锤进行温度600℃、时长5 h的退火处理,使用扫描电镜(SEM)、XRD和显微硬度计等对其组织结构、WC晶粒邻接度、WC粒径分布以及硬度进行了研究。结果表明,热处理促使WC-Co硬质合金顶锤中钴元素分布和WC粒径变得更均匀,碳化钨的晶粒邻接度下降,合金硬度升高。In order to eliminate the processing defects introduced in the hammer processing,the WC-Co cemented carbide anvil was annealed at 600℃for 5 h,and its microstructure,WC grain contiguity,WC grain size distribution and hardness were studied by means of scanning electron microscope(SEM),XRD and microhardness tester.The results show that the heat treatment makes the distributions of cobalt element and WC particle size in the WC-Co cemented carbide anvil more uniform,the grain contiguity of tungsten carbide decreases,and the alloy hardness increases.

关 键 词：WC-CO硬质合金 顶锤 热处理 晶粒邻接度 硬度 

分 类 号：TQ164[化学工程—高温制品工业]