Characterization and frictional behavior of nanostructured Ni-W-MoS2 composite coatings

被引：115

作者：

Cardinal, M. F. ^{[1
]}

Castro, P. A. ^{[1
]}

Baxi, J. ^{[3
]}

Liang, H. ^{[3
]}

Williams, F. J. ^{[1
,2
]}

机构：

[1] TENARIS Res & Dev Ctr, Surface Chem & Coatings Dept, RA-2804 Campana, Argentina

[2] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Quim Inorgan Analit & Quim Fis, Buenos Aires, DF, Argentina

[3] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA

来源：

SURFACE & COATINGS TECHNOLOGY | 2009年 / 204卷 / 1-2期

关键词：

Nanostructured; Coating; Electrodeposition; Solid lubricant; Ni-W; MoS2; NANOCRYSTALLINE NI-W; W/SIC NANOCOMPOSITE COATINGS; MECHANICAL-PROPERTIES; CORROSION-RESISTANCE; WEAR-RESISTANCE; PTFE COATINGS; GRAIN-SIZE; ALLOYS; ELECTRODEPOSITION; NICKEL;

D O I：

10.1016/j.surfcoat.2009.06.037

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ni-W-MoS2 composite coatings were obtained by pulse plating from a Ni-W electrolyte containing suspended MoS2 particles. The coating composition, morphology, crystalline structure, microhardness and frictional behavior were studied as a function of MoS2 concentration. The results obtained in this study indicate that co-deposited lubricant particles strongly influenced the composite Ni-W coating properties. It was found that increasing co-deposited MoS2 diminished tungsten content in the coating and consequently increased the average grain size. Ni-W nanostructured coatings with high MoS2 content have a porous sponge-like structure, high surface roughness and irregular frictional behavior. However, the friction coefficient of Ni-W coatings is reduced to half its value with low MoS2 content. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：85 / 90

页数：6

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