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Erosion Wear Behavior of CrAlN Coating Produced by Pulsed Filtered Vacuum Cathode Arc Deposition Assisted with Plasma

Feng-fang WUJin-jie LIBing WU

School of Mechanical Engineering, Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, Shandong University

摘要:To improve the tribological properties, it is important to reduce the growth defects in PVD hard coatings. CrAlN coating was deposited on the substrate of a hard metal by pulsed filtered vacuum cathode arc deposition assisted with plasma(PFVCADP). The surface morphology of the original coating was examined by scanning electron microscope(SEM). SEM images of the coating surfaces showed that the surface growth defects in the CrAlN coating were reduced markedly. The coating was eroded by solid angular SiC particles. The analysis of the morphologies of the surface and cross section of the eroded coatings proved that the coating material was removed by brittle fatigue fracture of the coating material. The erosion wear of the coating behaved as brittle materials. The fragments were so fine that the eroded surface became smoother with the increase of the impacts from the particles and the particles impingements played a role of polishing to the coating surface.
会议名称:

2018 International Conference on Computational, Modeling, Simulation and Mathematical Statistics(CMSMS 2018)

会议时间:

2018-06-24

会议地点:

中国陕西西安

  • 专辑:

    工程科技Ⅰ辑

  • 专题:

    金属学及金属工艺

  • 分类号:

    TG174.4

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