Ti(C,N)基金属陶瓷表面电火花沉积自润滑涂层及其摩擦学性能研究  

Study on the Tribological Properties of Self-lubricating Coatings Deposited on Ti(C,N)Cermet by Electro-spark Deposition

作　　者：杨林[1] 曹同坤[1] 吕壮 Yang Lin;Cao Tongkun;Lv Zhuang(Qingdao University of Science and Technology,Qingdao,Shandong 266061,China;不详)

机构地区：[1]青岛科技大学,山东省青岛市266061

出　　处：《工具技术》2022年第10期59-62,共4页Tool Engineering

摘　　要：为了提高Ti(C,N)基金属陶瓷表面减摩润滑性能,延长零部件使用寿命,采用电火花沉积技术在其表面沉积制备Cu-MoS_(2)自润滑涂层,使用HSR-2M型高速往复摩擦磨损试验机对制备的自润滑涂层进行摩擦磨损实验,并对涂层表面形貌进行了研究,分析了MoS_(2)含量对自润滑涂层摩擦磨损性能的影响规律。当涂层厚度约为45.7μm、表面粗糙度约为1.19μm时,涂层表面较为均匀、致密,且在摩擦试验时表现出良好的减摩润滑作用。MoS_(2)含量增加时会提高涂层的润滑性能,但含量过高会导致涂层发生局部脱落;Cu-MoS_(2)自润滑涂层的减摩润滑性能与涂层中MoS_(2)含量有关,主要是因为涂层中MoS_(2)含量会影响涂层表面强度以及涂层与基体的结合效果。In order to improve the lubrication performance of Ti(C,N)cermet surface and prolong the service life of its components,the Cu-MoS_(2) self-lubricating coating is deposited on its surface by electro-spark deposition.The friction and wear tests of the self-lubricating coating are carried out by HSR-2M high-speed reciprocating friction and wear testing machine.The surface morphology of the coating is studied by SEM,and the effect of MoS_(2) content on the friction and wear properties of the self-lubricating coating is analyzed.The coating thickness is about 45.7μm,and the surface roughness is about 1.19μm.The coating surface is uniform and compact,and it shows good antifriction lubrication in friction test.The lubrication performance of the coating is improved when the content of MoS_(2) increases,but the coating is partially peeled off when the content of MoS_(2) is too high.The friction-reducing lubrication performance of Cu-MoS_(2) self-lubricating coating is related to the content of MoS_(2) in the coating,because the content of MoS_(2) in the coating affects the surface strength of the coating and the combining effect between the coating and the substrate.

关 键 词：电火花沉积 自润滑涂层 金属陶瓷 摩擦磨损 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TH117.1[金属学及工艺—金属学]