激光微织构对硬质合金TiAlN涂层结合性能的影响  

Study on Influence of Laser Micro-texture on Bonding Properties of Cemented Carbide TiAlN Coating

作　　者：冯爱新[1,2] 王博[2] 何叶[2] 杨润[2] 刘源[2] 钟国旗 

机构地区：[1]温州大学机电学院,浙江温州325035 [2]江苏大学机械工程学院,江苏镇江212013

出　　处：《热加工工艺》2017年第14期155-158,共4页Hot Working Technology

基　　金：江苏省普通高校研究生科研创新计划项目(CXLX12_0621);国家自然科学基金项目(51175237;51305050)

摘　　要：为了研究硬质合金表面激光微织构对涂层性能的影响,利用光纤激光在硬质合金基体表面制备具有不同深度、直径及密度的微织构。采用CC800/9XL型超高真空多功能磁控溅射系统在硬质合金表面制备TiAlN涂层。通过Leica DM2500 M透射光学显微镜、扫描电镜分析了TiAlN涂层的表面形貌。利用MFT-4000型涂层附着力自动划痕仪对涂层-基体结合力进行表征。结果表明:激光微织构工艺能提高硬质合金基体与TiAlN涂层的结合力,比基体表面未织构工艺提高了近5倍。In order to study the influence of laser micro texture on cemented carbide surface on the properties of the coating, the micro-texture with different depths, diameters and destinies on the cemented carbide substrate was prepared by optical fiber laser, and then TiAlN coating on the substrate was prepared by CC800/9XL type ultrahigh vacuum magnetron sputtering system. Using Leica DM2500 M transmission optical microscopy and scanning electron microscope, the surface morphology of TiAlN coating was analyzed. Using MFT-400 type coating adhesion automation scratch device, the bonding adhesion force of coating to substrate was analyzed. The results show that the adhesion force of cemented carbide matrix and TiAlN coating improves by laser micro texture, which is nearly 5 times higher than no textured matrix surface.

关 键 词：硬质合金 微织构 结合力 TIALN涂层 光纤激光 

分 类 号：TG174.4[金属学及工艺—金属表面处理]