Abstract
Multi-arc ion plating technique was used to fabricate TiN film on the surface of high speed steel (HSS) to improve its wear resistance. The structure and morphology of TiN film were analyzed by XRD and SEM,and the bonding strength between the film and substrate was studied by the scratch tester. The results show that the thin film formed on the surface of the substrate consists of compact TiN. There are some white spots and black spots on the surface of the film. The bonding strength between the film and the substrate reaches 43 N/mm2, which correlates to formation of a pseudo diffusion layer. The tribological experimental results show that plating TiN film can greatly improve wear resistance of HSS.
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