Electrodeposition of Co–Ni–P/graphene oxide composite coating with enhanced wear and corrosion resistance. Issue 10 (20th February 2019)

• Record Type: Journal Article
• Authors: Liu, Cansen; Wei, Dongdong; Huang, Xiaoye; Mai, Yongjin; Zhang, Liuyan; Jie, Xiaohua
• Is Part Of: Journal of materials research. Volume 34:Issue 10(2019)
• Page Start: 1726
• Page End: 1733
• Publication Date: 2019-02-20
• Subjects: Co–Ni–P, -- graphene oxide, -- pulse electrodeposition, -- wear, -- corrosion; Materials -- Research -- Periodicals; 620.1105
• DOI: 10.1557/jmr.2019.15
• Languages: English
• ISSNs: 0884-2914

Abstract

Abstract: Abstract : Coatings with low friction coefficient and excellent anti-wear and anticorrosion performances are of great interest for fundamental research and practical applications. In the present study, Cobalt–nickel–phosphorus/graphene oxide (Co–Ni–P/GO) composite coating is prepared by a pulse electrodeposition method. Effect of the embedded GO sheets on the microstructures, microhardness, and electrochemical and tribological behaviors of the Co–Ni–P/GO composite coating are researched in detail. The results reveal that the co-deposition of GO sheets significantly improves the microhardness of the as-prepared Co–Ni–P/GO composite coating and changes the morphology of the Co–Ni–P coating from hemispheric structure to nodule structure with smaller globular particles for the Co–Ni–P/GO composite coating. In addition, friction and wear tests show that the incorporation of GO sheets endows the Co–Ni–P/GO composite coating with remarkable friction reduction and improved wear resistance. Electrochemical corrosion tests demonstrate that the Co–Ni–P/GO composite coating possesses better corrosion resistance than the Co–Ni–P coating.