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作 者:Hao LI Linlin LIU Peng GUO Lili SUN Jing WEI Yingrui LIU Shuyu LI Shuyuan WANG Kwang-Ryeol LEE Peiling KE Aiying WANG
机构地区:[1]Key Laboratory of Marine Materials and Related Technologies,Zhejiang Key Laboratory of Marine Materials and Protective Technologies,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China [2]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [3]Computational Science Center,Korea Institute of Science and Technology,Seoul 136-791,Republic of Korea
出 处:《Friction》2022年第10期1707-1721,共15页摩擦(英文版)
基 金:This work was supported by the National Natural Science Foundation of China(Nos.52025014 and 51801226);A-class pilot of the Chinese Academy of Sciences(No.XDA22010303);K.C.Wong Education Foundation(No.GJTD-2019-13);CAS-NST Joint Research Project(No.174433KYSB20200021);CAS Interdisciplinary Innovation Team(No.292020000008).
摘 要:Current tribocorrosion research of metallic materials and their surface protective coatings mainly focuses on their short-term properties,with test time of 0.5‒2.0 h and a sliding distance 50‒500 m,which may significantly deviate from the practical long-term service condition and thus cause a catastrophe of marine equipments.In this study,three carbon-based multilayer coatings(Ti/DLC,TiC_(x)/DLC,and Ti‒TiC_(x)/DLC)were deposited on S32750 substrates,and both short-term and long-term tribocorrosion behaviors were investigated.The experimental results indicate that the coatings substantially improve the tribocorrosion resistance of the S32750 stainless steel.During the short-term tribocorrosion test,TiC_(x)/DLC exhibited the best tribocorrosion resistance owing to its high hardness.During the long-term tribocorrosion test,however,Ti‒TiC_(x)/DLC coating indicated the best anti-tribocorrosion performance owing to its excellent fracture toughness together with high hardness.Moreover,under 5 N,Ti‒TiC_(x)/DLC can withstand a long-term test of more than 24 h.Additionally,under a higher load of 20 N,the Ti‒TiC_(x)/DLC with a corresponding sliding distance of approximately 1,728 m maintained a low friction coefficient of approximately 0.06.However,the coating was completely worn out;this is attributable to the formation of tribocorrosion products consisting of graphitized carbon and nanocrystalline Fe_(x)O_(y).
关 键 词:DLC multilayer structure long-term tribocorrosion failure tolerance
分 类 号:TG174.4[金属学及工艺—金属表面处理]
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