CORROSION BEHAVIOR OFNi–W/SiCNANOCOMPOSITE COATING INNaClSOLUTION

Yingwu Yao, Suwei Yao () and Lu Zhang
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Yingwu Yao: Sugiyama Laboratory of Surface Technology, School of Chemical Engineering and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, P. R. China
Suwei Yao: Sugiyama Laboratory of Surface Technology, School of Chemical Engineering and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, P. R. China
Lu Zhang: School of Textiles, Tianjin Polytechnic University, 63 Chenlinzhuang Road, Tianjin 300160, P. R. China

Surface Review and Letters (SRL), 2006, vol. 13, issue 04, 489-494

Abstract: Ni–W/SiCnanocomposite coatings were prepared by electrodeposition inNi–Wplating bath containingSiCnanoparticulates. The effect of incorporation ofSiCparticulates into theNi–Wmatrix on the morphology of the coating surface and corrosion properties was investigated. Scanning electron microscopy (SEM) showed that theSiCnanoparticulates are uniformly distributed in theNi–Wmatrix. Corrosion tests were performed in 0.5 MNaClsolution using electrochemical measurements forNi–Walloy coating andNi–W/SiCnanocomposite coating. The results showed that the co-deposition ofSiCnanoparticulates in the composite coatings increased the corrosion resistance. At last, the anti-corrosion mechanism of the nanocomposite coatings is also discussed.

Keywords: SiCnanoparticulates; Ni–W; nanocomposite coating; corrosion (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1142/S0218625X06008724

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