钨含量和摩擦条件对掺钨DLC涂层摩擦性能的影响  

Influences of W Content and Friction Condition on the Tribological Properties of W-Doped DLC Coatings

作　　者：付志强[1] 王成彪[1] 岳文[1] 彭志坚[1] 于翔[1] 林松盛[2] 代明江[2] 

机构地区：[1]中国地质大学(北京),北京100083 [2]广州有色金属研究院,广东广州510651

出　　处：《稀有金属材料与工程》2011年第9期1584-1588,共5页Rare Metal Materials and Engineering

基　　金：科学技术部国际科技合作计划项目(2006DFB51260);清华大学摩擦学国家重点实验室开放基金资助项目(SKLTKF08B02);金属新材料制备与成形广东省重点实验室开放基金项目(2008002)

摘　　要：考察钨含量和摩擦条件对掺钨DLC涂层摩擦性能的影响。结果发现:随着钨含量的增加,DLC涂层摩擦系数明显增加;钨含量为3.1%(原子分数)的掺钨DLC涂层的耐磨性最好。在干摩擦条件下,低钨含量的DLC涂层摩擦系数随着载荷的增加而有所增加,高钨含量的DLC涂层在高载荷时具有较低的摩擦系数;高钨含量的DLC涂层的摩擦系数随着转速的增加而增加,但转速对纯DLC涂层的摩擦系数影响很小。掺钨DLC涂层的磨损主要是由Si3N4球压入试样表面时涂层在变形过程中的微观断裂和剥落引起的。The influences of W content and friction condition on the tribological properties of W-doped diamond-like carbon （DLC） coatings were studied. Results show that the friction coefficients of W-doped DLC coatings is augmented with the W content increasing;the W-doped DLC coatings with a W content of 3.1% exhibit the best film/substrate adhesion and wear resistance. Under the dry friction condition,the friction coefficients of W-doped DLC coatings with a low W content are increased with the rise of load while low friction coefficients of W-doped DLC coatings with a high W content are found at a high load;the friction coefficients are increased with the rotation rate increasing for the DLC coatings with a high W content,but the influence of the rotation rate on the friction coefficients of un-doped DLC coatings is unobvious. The wear of W-doped DLC coatings are produced by the micro-fracture and peeling in the coatings during the indentation of hard Si3N4 ball into the sample surface.

关 键 词：掺钨类金刚石 钨含量 摩擦条件 摩擦磨损性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]