不同成分CrMoN涂层对模具钢表面性能的影响  

EFFECT OF CrMoN HARD COATINGS WITH DIFFERENT COM-POSITIONS ON THE SURFACE PROPERTIES OF DIE STEELS

作　　者：陈智勇[1] 施雯[1] 张键[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《上海金属》2010年第4期9-12,15,共5页Shanghai Metals

基　　金：上海汇众汽车有限公司技术开发基金资助项目

摘　　要：采用非平衡磁控溅射方法在H13钢和SDC99钢表面制备不同Mo含量的CrMoN涂层,采用HX-1000型显微硬度计、V-LUX1000型原位纳米力学测试系统测定涂层的显微硬度和纳米硬度,并通过划痕和摩擦磨损试验考察了涂层与基体的结合强度及其摩擦磨损性能。结果表明,不同Mo含量的CrMoN涂层均能明显地提高基体的承载能力和耐磨性能,其中Mo含量为20.72at%的涂层承载能力、同基体的结合力以及耐磨损性均最好,基体硬度更高的SDC99钢表面涂层性能比H13钢的更好。CrMoN coatings with differents Mo content were prepared on Crl2MoV and H13 steels by using a closed field unbalanced magnetron sputtering technique. The properties of CrMoN coatings in terms of surface morphology, micro hardness, nanohardness, adhesive strength and wear resistance were characterized by HX-IO00 micro hardness tester, V-LUX1000 indentation, XRD, scratch and wear tests. The experimental results showed that CrMoN coatings with different Mo con- tents could significantly enhance the surface load bearing capacity and wear resistance. Especially, the coatings with Mo 20.72 at% exhibited the best comprehensive properties and wear resistance, moreover, the higher substance hardness （SDC99）, the better the properties of coatings.

关 键 词：磁控溅射 CrMoN涂层 模具钢 摩擦磨损 

分 类 号：TG174.44[金属学及工艺—金属表面处理]