Title Particle Distribution, Film Formation and Wear Performance of Brush Plated Ni/WC
Authors Isern, L. , Impey, S. , Clouser, S. J. , Milosevic, D. , ENDRINO ARMENTEROS, JOSÉ LUIS
External publication Si
Means J Electrochem Soc
Scope Article
Nature Científica
JCR Quartile 1
SJR Quartile 1
JCR Impact 3.12000
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049252481&doi=10.1149%2f2.1161809jes&partnerID=40&md5=9c1efd38c15a0b940983904323de1208
Publication date 01/01/2018
ISI 000440924800092
Scopus Id 2-s2.0-85049252481
DOI 10.1149/2.1161809jes
Abstract Nickel-matrix composite coatings with tungsten carbide particles were produced by brush electroplating using different current densities and materials of the brush. Non-abrasive materials and high current densities produce coatings with high particle content and non-uniform dispersion. Abrasive wear testing showed premature coating failure in areas with high particle concentrations (>21.3 at.% of W). Changes to the solution flow direction were undertaken to decrease \'solution pooling\', as it was related to areas with excessive particle content. This, together with the use of abrasive brushes at lower current densities, gives Ni/WC coatings with a low and narrow composition range (from 13.2 +/- 4.8 to 2.8 +/- 0.8 at.% of W). Such optimized coatings minimized premature coating failure and improved the wear resistance to 1.8-4.4 times that of the original nickel matrix, achieving values similar to hard chrome coatings tested under the same conditions. Unlike other brush plated composite coatings, changes in coating morphology are not heavily influenced by processing parameters, but are sensitive to the presence of WC particles. (C) The Author(s) 2018. Published by ECS.
Keywords Abrasive coatings; Abrasives; Chromate coatings; Current density; Dispersions; Hard coatings; Nickel coatings; Tungsten carbide; Wear of materials; Wear resistance; Brush electroplating; Composition r
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