Tribological properties in seawater for Ti/TiCN coatings on Ti6Al4V alloy by arc ion plating with different carbon contents  

作　　者：Jin-Long Li Gang-Yi Cai Hua-Sheng Zhong Yong-Xin Wang Jian-Min Chen 

机构地区：[1]Key Laboratory of Marine Materials and Application Technologies, Zhejiang Key Laboratory of Marine Materials and Protection Technologies, Ningbo Institute of Materials Technologies and Engineering, Chinese Academy of Sciences [2]School of Mechanical and Electrical Engineering, Henan University of Technology

出　　处：《Rare Metals》2017年第11期858-864,共7页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (No.51575510);Ningbo International Cooperation Project (No.2013D10005);Zhejiang Provincial Natural Science Foundation of China (No.LY14E010005)

摘　　要：TiCN coatings incorporated with Ti buffer layer were deposited on Ti6A14V alloy by arc ion plating. The carbon content in TiCN coatings was varied by controlling flow rates of C2H2 in reactive gas. The Ti/TiCN coatings have a typical structure of columnar crystal with a total thickness of about 2 pro. The elements of Ti, C and N are present as TiN and TiC in TiCN coatings. A little free carbon appears with carbon content increasing in TiCN coatings. For the TiCN coatings, the hardness, friction coefficient and wear rate decrease with the increase in carbon content. In seawater, both friction coefficient and wear rate have an obvious decrease at lower carbon content compared with those in atmosphere. However, the friction coefficient and wear rate only have a slight decrease, while the carbon content reaches or exceeds 10 at% in Ti/TiCN coatings.TiCN coatings incorporated with Ti buffer layer were deposited on Ti6A14V alloy by arc ion plating. The carbon content in TiCN coatings was varied by controlling flow rates of C2H2 in reactive gas. The Ti/TiCN coatings have a typical structure of columnar crystal with a total thickness of about 2 pro. The elements of Ti, C and N are present as TiN and TiC in TiCN coatings. A little free carbon appears with carbon content increasing in TiCN coatings. For the TiCN coatings, the hardness, friction coefficient and wear rate decrease with the increase in carbon content. In seawater, both friction coefficient and wear rate have an obvious decrease at lower carbon content compared with those in atmosphere. However, the friction coefficient and wear rate only have a slight decrease, while the carbon content reaches or exceeds 10 at% in Ti/TiCN coatings.

关 键 词：Ti/TiCN coatings Arc ion plating HARDNESS Seawater WEAR 

分 类 号：TG174.4[金属学及工艺—金属表面处理]