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research-article

Tribological characterization of electroless Ni-B coatings formed on commercial purity magnesium

[+] Author and Article Information
Esteban Correa

Materiales para el Mobiliario - MATERMOB Centro Tecnológico del Mobiliario Servicio Nacional de Aprendizaje SENA, Calle 63 No. 58B-03, Itagüí, Colombia
ecorrea54@misena.edu.co

Juan Felipe Mejía

Centro de Investigación, Innovación y Desarrollo de Materiales - CIDEMAT, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
inetfer@outlook.com

Juan Guillermo Castaño

Centro de Investigación, Innovación y Desarrollo de Materiales - CIDEMAT, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
juan.castano@udea.edu.co

Félix Echeverría

Centro de Investigación, Innovación y Desarrollo de Materiales - CIDEMAT, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
felix.echeverria@udea.edu.co

Maryory Gómez

Centro de Investigación, Innovación y Desarrollo de Materiales - CIDEMAT, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
maryory.gomez@udea.edu.co

1Corresponding author.

ASME doi:10.1115/1.4036169 History: Received July 22, 2016; Revised January 23, 2017

Abstract

Ni-B coatings have been deposited directly on commercial purity magnesium and evaluated by means of sliding wear and friction testing. The nickel and boron are distributed throughout the whole thickness of the coating. Parametric optimization has been carried out using design of experiment based on Taguchi analysis. The friction coefficients of the coatings vary between 0.01-0.3, depending of the evaluated conditions. The lowest wear rate of the coating was 0.19 × 10-5 mm3 N-1 m-1. Wear and friction coefficient maps of Ni-B electroless coatings formed on magnesium surfaces are reported. Nanoparticles present in the lubricating fluid acts as a third wear body increasing the wear of the electroless coating.

Copyright (c) 2017 by ASME
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