Maqola

Improving tribological performance of CrN coatings in seawater by structure design

Lei ShanDepartment of Mechanical, Zhejiang Textile and Fashion College, Ningbo 315211, ChinaYongxin WangNingbo Institute of Industrial TechnologyJinlong LiKey Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaXin JiangKey Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaJianmin ChenKey Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China

2014en

ABI

Annotatsiya

Four CrN coatings were deposited on 316L stainless steel by multi-arc ion plating. The tribological behaviors of the CrN coatings were investigated by ball-on-disk tribometer in seawater . The microstructure and wear track were investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and profilometer. The result shows delamination is critical to wear failure of CrN coatings in seawater and micro-cracks play an important role in the evolution of delamination . The most effective approach to eliminate the delamination is fabricating a proper multilayer structure, which could limit crack propagation only to the layer. A comprehensive wear model is established. • Tribological tests were carried out on PVD CrN coatings in seawater. • The multilayer coating controls wear failure effectively in seawater. • A comprehensive wear model of the CrN coatings in seawater was established. • Several feasible methods were proposed to control wear failure of CrN coatings.

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Identifikatorlar

DOI: 10.1016/j.triboint.2014.10.006

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