硬质合金稀土固体渗硼工艺研究  

Research on Pack RE-boronizing of Cemented Carbide

作　　者：艾国平[1] 左杨平[1] 蔡文俊[1] 卢文壮[1] AI Guoping ZUO Yangping CAI Wenjun LU Wenzhuang(College of Mechanical and Electrical Engineering Nanjing Universityof Aeronautics and Astronautics, Nanjing 210016, China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械制造与自动化》2016年第5期28-30,共3页Machine Building & Automation

基　　金：国家自然科学基金资助项目(51275230);江苏省六大人才高峰资助项目(ZBZZ-002)

摘　　要：硬质合金具有较好的强度和韧性,在工业领域中应用广泛。通过固体渗硼工艺在硬质合金表面形成一层硬化层,能提高其硬度和耐磨性。对YG类硬质合金进行了稀土固体渗硼试验,采用XRD和金相显微镜观察渗硼层物相和厚度,研究了硬质合金Co含量、渗硼温度、渗硼时间和渗剂配方对渗硼层厚度的影响。结果表明,各种工艺参数均对渗硼层厚度有不同程度的影响,稀土元素具有催渗作用。Due to the strenth and toughness of cemented carbide it is widely used in industry. The boronizing process can be usedto improve the hardness and wear resistance because of the hardened layer on the surface. A study of the pack boronizing processis made. The phase and thickness of the boride layer are analyzed by XRD and metalloscope. The effects of Co content, boronizingtemperature, boronizing time and boronizing agent on the thickness of the boride layer are investigated. The results show that thethickness is affected by all the process parameters. RE element can activate the boronizing.

关 键 词：硬质合金 稀土 渗硼 厚度 

分 类 号：TG146[一般工业技术—材料科学与工程]