Electrodeposition and mechanical and corrosion resistance properties of Ni-W/SiC nanocomposite coatings

被引：157

作者：

Yao, Yingwu

Yao, Suwei ^{[1
]}

Zhang, Lu

Wang, Hongzhi

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Sugiyama Lab Surface Technol, Tianjin 300072, Peoples R China

[2] Tianjin Polytech Univ, Sch Text, Tianjin 300160, Peoples R China

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 01期

关键词：

electrodeposition; Ni-W alloy coating; SiC nano-particulates; Ni-W/SiC nanocomposite coatings;

D O I：

10.1016/j.matlet.2006.04.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ni-W/SiC natiocomposite coatings with various contents of SiC nano-particulates were prepared by electrodeposition in Ni-W plating bath containing SiC particulates. The influences of the SiC nano-particulates concentration, current density and stirring rate of the plating bath on the composition of the nanocomposite coatings were investigated. The surface morphologies of the Ni-W alloy and Ni-W/SiC nanocomposite coating were observed using a scanning electron microscope (SEM). The morphology of Ni-W/SiC nanocomposite coating is smoother than that of Ni-W alloy coating. The microhardness of composite coatings increases with the increasing content of the SiC nano-particulates in the coatings. The corrosion behavior of Ni-W alloy and Ni-W/SiC nanocomposite coatings was evaluated by the anodic polarization curves in 0.5 mol/L NaC1 solution at room temperature. It shows that Ni-W/SiC nanocomposite coating has better corrosion resistance than the Ni-W alloy coating. (c) 2006 Elsevier B.V All rights reserved.

引用

页码：67 / 70

页数：4

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