引用本文:陈强,张而耕,周琼,黄彪,梁丹丹,张帆,孙思叡,孙国庆.金属陶瓷nc-Ti(C,N)复合自润滑碳介质涂层的制备及性能*[J].中国表面工程,2022,34(2):160~169
CHEN Qiang,ZHANG Ergeng,ZHOU Qiong,HUANG Biao,LIANG Dandan,ZHANG Fan,SUN Sirui,SUN Guoqing.Preparation and Properties of Cermet nc-Ti(C, N) and Self-lubricating Carbon Media Composite Coating[J].China Surface Engineering,2022,34(2):160~169
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金属陶瓷nc-Ti(C,N)复合自润滑碳介质涂层的制备及性能*
陈强1, 张而耕1, 周琼1, 黄彪1, 梁丹丹1, 张帆2, 孙思叡2, 孙国庆2
1.上海应用技术大学上海物理气相沉积(PVD)超硬涂层及装备工程技术研究中心 上海 201418;2.上海名古屋精密工具有限公司 上海 201801
摘要:
金属陶瓷涂层与类金刚石涂层的性能不同，在实际应用中两种涂层不能够互换使用，对于涂层的应用来说是一个缺陷。 为了克服上述缺陷，将金属陶瓷涂层与类金刚石涂层的优异性能相结合，提出一种金属陶瓷复合自润滑碳涂层，并以三元TiCN 涂层为对象，采用 SEM、EDAX、XRD、Raman、XPS 及维氏硬度计、压痕试验、摩擦磨损试验，研究具有自润滑特性的碳相对含量对涂层微观组织结构、力学及摩擦磨损性能的影响。结果表明：随着碳含量的增加，涂层表面更为致密光滑，涂层的主要组成相为 TiN、TiC、TiC0.3N0.7 及 TiC0.7N0.3；涂层中 Ti-N、Ti-C 键随着碳含量的增加呈现先增加后减少趋势，当碳含量为 31.24 at%时，涂层中便有多余的非晶碳析出，形成金属陶瓷复合自润滑碳涂层 nc-Ti(C, N) / a-C，此时涂层不锈钢的硬度最高为 HV0.05 1052.2，同时涂层表现出较好的结合力、较低的摩擦因数及磨损率；涂层中碳含量为 43.85 at%时，摩擦因数较低，在 0.1 以下波动，磨损率达最小值 3.31×10?15 m3 / (N·m)，但压痕周围有微裂纹产生。解释了自润滑碳对于金属陶瓷涂层性能的影响机制，可为高性能涂层的制备提供理论指导及试验依据。
关键词:  金属陶瓷  碳介质  自润滑  微观组织  力学性能
DOI：10.11933/j.issn.1007-9289.20211011002
分类号:TG174;TH117
基金项目:上海应用技术大学中青年科技人才发展基金(ZQ2020-24)；上海市自然科学基金(20ZR1455700)；国家自然科学基金青年基金(51901138)资助项目
Preparation and Properties of Cermet nc-Ti(C, N) and Self-lubricating Carbon Media Composite Coating
CHEN Qiang1, ZHANG Ergeng1, ZHOU Qiong1, HUANG Biao1, LIANG Dandan1, ZHANG Fan2, SUN Sirui2, SUN Guoqing2
1.Shanghai Engineering Research Center of Physical Vapor Deposition (PVD) Superhard Coating and Equipment,Shanghai Institute of Technology, Shanghai 201418 , China;2.Shanghai Nagoya Precision Tools Co., Ltd, Shanghai 201801 , China
Abstract:
Cermet coating has different properties from diamond-like carbon coating. In practical applications, the two coatings can not be used interchangeably, which is a defect for coating applications. To overcome the above defects and combine the excellent properties of cermet coating and diamond-like carbon coating, a cermet composite self-lubricating carbon coating is proposed. Taking the ternary TiCN coating as the object, the effects of the relative content of carbon with self-lubricating characteristics on the microstructure, mechanics and friction and wear properties of the coating are studied by SEM, EDAX, XRD, Raman, XPS, Vickers hardness tester, indentation test and friction and wear test. The results show that the coating surface becomes more compact and smooth with the increase of carbon content, and the main constituent phases of the coating are TiN, TiC, TiC0.3N0.7 and TiC0.7N0.3. The Ti-N and Ti-C bonds in the coating increase first and then decrease with the increase of carbon content. When the C content is 31.24at.%, the C gradually precipitates from the crystal, and a cermet composite carbon coating of nc-Ti(C, N)/a-C is formed. At this time, the highest hardness of coated stainless steel is HV0.051052.2, and the coating shows good adhesion, low friction factor and wear rate. When the C content is 43.85 at.%, the friction factor of the coating is low, fluctuates below 0.1, and the wear rate reaches the minimum value of 3.31×10?15 m3 / (N·m), but there are microcracks around the indentation. The above research explains the influence mechanism of self-lubricating carbon on the properties of cermet coatings, and provides theoretical guidance and experimental basis for the preparation of high-performance coatings.
Key words:  cermet  carbon medium  self lubrication  microstructure  mechanical property
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