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采用化学气相沉积和物理气相沉积工艺,分别选用高铝钛及TiC+Ti(C,N)+TiN复合的金属陶瓷在滑动轴承表面制备金属陶瓷膜层。采用金相显微镜、体视显微镜和显微硬度计对不同金属陶瓷膜的表面形貌、组织结构及厚度进行测量和观察,并在MMW-1型万能摩擦磨损试验机对涂层材料进行摩擦磨损试验,通过测量磨损量与摩擦因数随时间的变化规律,观察摩擦副表面磨损形貌,分析了不同陶瓷膜层的耐磨性和摩擦磨损机理。结果表明,涂镀复合陶瓷膜(TiC/Ti(C,N)/TiN)的销试件硬度高、磨损极其轻微、表面均匀且光滑,复合陶瓷膜(淬火)更适用于牙轮钻头滑动轴承表面涂层材料。
The chemical vapor deposition and physical vapor deposition process were used to prepare the cermet coating on the sliding bearing surface by using cermet with high aluminum titanium and TiC + Ti (C, N) + TiN respectively. The surface morphology, structure and thickness of different metal ceramic films were measured and observed by optical microscope, stereo microscope and microhardness tester. The friction and wear of the coating materials were also measured on a MMW-1 universal friction and wear tester The abrasion and friction factor of different ceramic coatings were investigated by measuring the variation of wear and friction factor with time. The results show that the pin specimen coated with TiC / Ti (C, N) / TiN has high hardness, very slight wear, uniform and smooth surface, and the composite ceramic film (quenching) is more suitable for roller bearing Surface coating material.