硬质合金刀具表面微/纳米金刚石复合涂层制备研究  

Deposition of Micro/Nano-structured Diamond Composite Coating on Cemented Carbide Cutting Tool

作　　者：张林[1] 马乐娟[2] 薛海鹏[1] 卢文壮[1] 左敦稳[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016 [2]中国航天科工集团8511研究所,江苏南京210016

出　　处：《机械制造与自动化》2017年第2期6-8,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：硬质合金是目前应用最为广泛的刀具材料,在刀具表面施加金刚石涂层可以提高硬质合金刀具的性能和耐用度。通过热丝CVD法在硬质合金刀具表面制备了多层微/纳结构的复合涂层,采用扫描电镜观察了复合涂层的表面和截面,并用拉曼光谱检测了涂层的成分,用压痕法检验了复合涂层的膜基结合性能。结果显示复合涂层的结构参数对膜基结合性能有较大影响,特定结构的复合涂层可以提升涂层的结合性能。Cemented carbide is a materical widely used for manufacturing cutting tools. The diamond coating on cemented carbide tool can be used to improve the performance and durability of the tool. The micro/nano-structured composite multilayer coating is prepared on cemented carbide tool by HFCVD method. The sectional structure of the coating is observed by scanning electron micro- scope. Raman spectroscopy is used to detect the composition of each crosssectional layer. The interfacial adhesion and bond strength between coating and substrate are tested by indentation experiments. The results show that the structural parameters of the composite coating have a greater effect on the interracial bond strength. The composite coating with the specific structure can greatly enhance the interracial bond strength.

关 键 词：金刚石 镒殳/纳米复合涂层 硬质合金 刀具 

分 类 号：TH164[机械工程—机械制造及自动化]