中文摘要：

研究了阴极电弧离子渗钛对316L不锈钢摩擦学性能的影响。结果表明：利用阴极电弧离子渗金属技术在316L不锈钢表面制备的渗钛层峰值钛含量为66%（质量分数）,渗钛层主要由Fe_2Ti和Ni Ti相组成,渗层与基体结合牢固;表面硬度由基体的2000 MPa提高到了4000 MPa,硬化层深度约为150μm;在干摩擦条件下,渗钛的不锈钢样品摩擦系数明显低于未渗钛样品,磨损率降低到未渗钛样品的1/7。未渗钛样品的磨损机制为磨料磨损、氧化磨损和粘着磨损,渗钛样品的磨损主要是渗层局部剥落引起的。

英文摘要：

The influence of cathodic arc plasma titanizing on the structure and tribological performance of 316 L stainless steel was studied by scanning electron microscope,X-ray diffractometer,micro-hardness tester,3D profile-meter,and reciprocating tribometer.Results show found that the closely adherent titanized layer with a peak titanium content of 66 wt% can be obtained by cathodic arc plasma titanizing.The titanized layer is composed of Fe_2 Ti and Ni Ti;the surface hardness of the titanized layer with a depth of 150 μm is increased to 4000 MPa from 2000 MPa of original substrate.Under dry friction,the friction coefficient of the titanized layer is obviously lower than that of the original substrate,and the cathodic arc plasma titanizing improves the wear resistance of 316 L stainless steels by 6 times.The wear mechanism of the original substrate is abrasive wear,oxidation wear and adhesive wear,while the wear mechanism of the titanized samples is mass loss caused by flaking of the particles in the titanized layer.