铝合金Ti(C,N)/TiN多元多层膜与阳极氧化膜性能比较

分别采用多弧离子镀技术及阳极氧化技术在LF6防锈铝基体表面制备了Ti(C,N)/TiN/Ti(C,N)/TiN/ Ti(C,N)/TiN六层多元多层膜及阳极氧化膜,并对比考察研究了该两种膜的力学性能和摩擦学性能,结果表明:多元多层膜与阳极氧化膜划痕临界荷载分别为76N,60N;显微硬度分别为HV0.251404,HV0.25520;二者摩擦系数都较高,分别为0.66,0.76;都使对偶件磨损;但与传统的阳极氧化膜相比,多元多层膜硬度与耐磨性都提高了近2倍,且其摩擦曲线平滑,呈稳定磨损状态,而阳极氧化膜摩擦曲线呈跳跃状,呈非稳定磨损状态.

Comparison of Properties Between Anodic Oxide Film and Ti(C,N)/TiN Multi-element-layer Film Prepared on Aluminium Alloy

Ti(C,N)/TiN/Ti(C,N)/TiN/Ti(C,N)/TiN six-layer multi-element-layer film and anodic oxide film were prepared on LF6 substrate by multi-arc ion plating and anodic oxide respectively. Their Mechanical and tribological properties were investigated. The results show that their critical loads are 76N and 60N respectively, microhardnesses are HV_(0.25)1404 and HV_(0.25)520 respectively, and their friction coefficients are 0.66 and 0.76 respectively which are relatively high and result in wear of counter object. But both hardness and wear resistance of multi-element-layer film increase by 3 times compared with that of anodic oxide film . Furthermore, friction coefficient curve of multi-element-layer film presents smooth, which shows that the film is worn steadily, but that of anodic oxide film presents jumping, which shows worn of the film is not steadily.