金属热处理 ›› 2023, Vol. 48 ›› Issue (6): 63-67.DOI: 10.13251/j.issn.0254-6051.2023.06.011

• 工艺研究 • 上一篇    下一篇

热处理对WC-Co硬质合金顶锤组织与力学性能的影响

郝世明1, 毛志平2,3, 谢敬佩2,3   

  1. 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
  • 收稿日期:2022-11-17 修回日期:2023-04-15 发布日期:2023-08-11
  • 作者简介:郝世明(1975—),男,副教授,博士,主要研究方向为金属基复合材料的制备、微结构和性能,E-mail:haoshm@haust.edu.cn
  • 基金资助:
    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)

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

Hao Shiming1, Mao Zhiping2,3, Xie Jingpei2,3   

  1. 1. School of Physics and Engineering, Henan University of Science and Technology, Luoyang Henan 471023, China;
    2. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang Henan 471023, China;
    3. Provincial and Ministerial Co-Construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology, Luoyang Henan 471023, China
  • Received:2022-11-17 Revised:2023-04-15 Published:2023-08-11

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。

关键词: WC-Co硬质合金, 顶锤, 热处理, 晶粒邻接度, 硬度

Abstract: 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.

Key words: WC-Co cemented carbide, anvil, heat treatment, grain contiguity, hardness

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