To overcome the poor adhesion of diamond-like carbon (DLC) films to the steel substrate, an interlayer can be used. In this study, the effect of the addition of NiP-SiC nanocomposite coating as an interlayer in comparison to the NiP coating has been investigated on tribological properties of the DLC layer. Using nano-scratch and nano-indentation tests, the mechanical and nanotribological behaviour of the DLC layers, such as scratch resistance, coefficient of friction, interfacial adhesion between DLC layer and substrate, and hardness were characterised. DLC/NiP-SiC samples showed higher adhesion, hardness, elastic modulus, and lower friction coefficient. These results reveal the improved tribological properties of DLC film by applying the NiP-SiC nanocomposite interlayer in comparison to using the pure NiP interlayer.

为了克服类金刚石碳 (DLC) 薄膜对钢基材的不良粘附，可以使用中间层。在这项研究中，与 NiP 涂层相比，添加 NiP-SiC 纳米复合涂层作为中间层对 DLC 层的摩擦学性能的影响进行了研究。使用纳米划痕和纳米压痕测试，表征了 DLC 层的机械和纳米摩擦学行为，例如耐划伤性、摩擦系数、DLC 层与基材之间的界面附着力以及硬度。DLC/NiP-SiC 样品表现出更高的附着力、硬度、弹性模量和更低的摩擦系数。这些结果表明，与使用纯 NiP 中间层相比，通过应用 NiP-SiC 纳米复合中间层，DLC 膜的摩擦学性能得到了改善。