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Abstract:

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. © 2009 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Characterization and frictional behavior of nanostructured Ni-W-MoS2 composite coatings
Autor:Cardinal, M.F.; Castro, P.A.; Baxi, J.; Liang, H.; Williams, F.J.
Filiación:Surface Chemistry and Coatings Department, TENARIS Research and Development Centre, Simini 250, Campana, 2804, Argentina
Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EGA Buenos Aires, Argentina
Department of Mechanical Engineering, Texas A and M University, College Station, TX 77843-3123, United States
Palabras clave:Coating; Electrodeposition; MoS2; Nanostructured; Ni-W; Solid lubricant; Average grain size; Coating compositions; Crystalline structure; Friction coefficients; Frictional behavior; MoS2; Nanostructured; Nanostructured coatings; Nanostructured Ni; Ni-W; Ni-W coatings; Pulse plating; Spongelike structure; Tungsten content; Electroplating; Friction; Molybdenum compounds; Nickel; Protective coatings; Solid lubricants; Surface roughness; Surface structure; Tungsten; Composite coatings
Año:2009
Volumen:204
Número:1-2
Página de inicio:85
Página de fin:90
DOI: http://dx.doi.org/10.1016/j.surfcoat.2009.06.037
Título revista:Surface and Coatings Technology
Título revista abreviado:Surf. Coat. Technol.
ISSN:02578972
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02578972_v204_n1-2_p85_Cardinal

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Citas:

---------- APA ----------
Cardinal, M.F., Castro, P.A., Baxi, J., Liang, H. & Williams, F.J. (2009) . Characterization and frictional behavior of nanostructured Ni-W-MoS2 composite coatings. Surface and Coatings Technology, 204(1-2), 85-90.
http://dx.doi.org/10.1016/j.surfcoat.2009.06.037
---------- CHICAGO ----------
Cardinal, M.F., Castro, P.A., Baxi, J., Liang, H., Williams, F.J. "Characterization and frictional behavior of nanostructured Ni-W-MoS2 composite coatings" . Surface and Coatings Technology 204, no. 1-2 (2009) : 85-90.
http://dx.doi.org/10.1016/j.surfcoat.2009.06.037
---------- MLA ----------
Cardinal, M.F., Castro, P.A., Baxi, J., Liang, H., Williams, F.J. "Characterization and frictional behavior of nanostructured Ni-W-MoS2 composite coatings" . Surface and Coatings Technology, vol. 204, no. 1-2, 2009, pp. 85-90.
http://dx.doi.org/10.1016/j.surfcoat.2009.06.037
---------- VANCOUVER ----------
Cardinal, M.F., Castro, P.A., Baxi, J., Liang, H., Williams, F.J. Characterization and frictional behavior of nanostructured Ni-W-MoS2 composite coatings. Surf. Coat. Technol. 2009;204(1-2):85-90.
http://dx.doi.org/10.1016/j.surfcoat.2009.06.037