无氢DLC涂层的摩擦学性能
发布时间：2019-06-30 22:43
【摘要】：为了探究轮胎模具无氢类金刚石(DLC)涂层的摩擦学特性,增强轮胎模具的易脱模、防粘、自清洁性能以及提高轮胎质量与服役寿命,以轮胎模具常用的35钢为基体,利用电弧离子镀在基体试样上制备无氢DLC涂层,对涂层Raman光谱、表面粗糙度、表面微观形貌、纳米硬度、结合力和摩擦系数进行了分析,着重研究涂层摩擦前后表面微观形貌的变化以及摩擦磨损机理。结果表明:通过改变表面粗糙度可以有效降低涂层的摩擦系数,涂层摩擦系数随粗糙度减小而显著降低;在140℃高温条件下,摩擦系数最小低至0.363 4,且涂层纳米硬度可达32.45 GPa,弹性模量高达348.94 GPa。无氢DLC涂层完全满足轮胎模具减摩耐磨和自清洁性的使用要求,为制造高性能轮胎模具提供了一种可行的工艺选择。
[Abstract]:In order to investigate the tribological characteristics of hydrogen-free diamond-like carbon (DLC) coating on tire die, enhance the easy demoulding, anti-adhesion, self-cleaning performance of tire die and improve the quality and service life of tire, hydrogen-free DLC coating was prepared by arc ion plating on the substrate sample with 35 steel commonly used in tire mould. The Raman spectrum, surface roughness, surface micromorphology and nano-hardness of the coating were prepared. The adhesion and friction coefficient were analyzed, and the change of surface morphology and friction and wear mechanism of the coating before and after friction were studied. The results show that the friction coefficient of the coating can be effectively reduced by changing the surface roughness, and the friction coefficient of the coating decreases significantly with the decrease of roughness, and the minimum friction coefficient is as low as 0.363 4 at high temperature of 140 鈩，
本文编号：2508314
[Abstract]:In order to investigate the tribological characteristics of hydrogen-free diamond-like carbon (DLC) coating on tire die, enhance the easy demoulding, anti-adhesion, self-cleaning performance of tire die and improve the quality and service life of tire, hydrogen-free DLC coating was prepared by arc ion plating on the substrate sample with 35 steel commonly used in tire mould. The Raman spectrum, surface roughness, surface micromorphology and nano-hardness of the coating were prepared. The adhesion and friction coefficient were analyzed, and the change of surface morphology and friction and wear mechanism of the coating before and after friction were studied. The results show that the friction coefficient of the coating can be effectively reduced by changing the surface roughness, and the friction coefficient of the coating decreases significantly with the decrease of roughness, and the minimum friction coefficient is as low as 0.363 4 at high temperature of 140 鈩，
本文编号：2508314
本文链接：https://www.wllwen.com/kejilunwen/cailiaohuaxuelunwen/2508314.html
