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A Ni-Cu/CuPP composite coating with good wear resistance and long-term corrosion resistance for seawater applications

Xingtao Cheng,Kaijun Wei,Hongjie Li,Na Teng,Shijun Xu,Quangang Chen,Xianmin Gong,Yi He,Siming Yan

At the present time, the subject of seawater scouring and corrosion phenomena is attracting considerable attention. Accordingly, the present study involved the synthesis of CuPP materials and the preparation of Ni-Cu/CuPP coatings for deployment in marine environments characterised by elevated stress and corrosion. The results show that CuPP can effectively enhance the wear resistance and long-term corrosion resistance of Ni-Cu coatings, which is attributed to ‘fine grain strengthening’ and ‘diffusion strengthening’. Furthermore, the formation of a friction transfer film and the transformation of the wear mechanism are the primary factors contributing to the exceptional wear resistance of the Ni-Cu/CuPP composite coatings.