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research-article

Wear behavior and mechanical properties of TiO2 coating deposited Electrophoretically on 316L Stainless steel

[+] Author and Article Information
Hafedh Dhiflaoui

Ecole Nationale Supérieure d'Ingénieurs de Tunis – LMMP, Université de Tunis, 5 Avenue Taha Hussein, Montfleury 1008, Tunisia
dhafedh@gmail.com

Khlifi Kaouther

Ecole Nationale Supérieure d'Ingénieurs de Tunis – LMMP, Université de Tunis, 5 Avenue Taha Hussein, Montfleury 1008, Tunisia
khlifi.kaouthar@yahoo.fr

Ahmed Ben Cheikh Larbi

Ecole Nationale Supérieure d'Ingénieurs de Tunis – LMMP, Université de Tunis, 5 Avenue Taha Hussein, Montfleury 1008, Tunisia
ahmed.cheikhlaarbi@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4038102 History: Received January 16, 2017; Revised September 21, 2017

Abstract

In this work, the TiO2 coatings were synthesized by electrophoretic deposition (EPD) of nano-sized powder in order to improve the tribological properties. Several characterization methods were applied to the coated substrates. The surface topography of the EPD layers, their morphology, composition and mechanical properties were investigated. The influences heat treatment, which results in calcination, on the wear performance of coated films was also examined. It was noticed that the effect of the normal force and sliding velocity on the coefficients of instantaneous and stabilized friction was not the same in treated coatings and untreated ones. Moreover, the treated and uncoated films showed a close relation between the dissipated accumulated energy and the worn volume. The energetic wear coefficients of fretting wear were also studied. As expected, the treated coating reduced the energetic wear coefficient, which enhanced the resistance to fretting wear.

Copyright (c) 2017 by ASME
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