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Materials 2016, 9(2), 117; doi:10.3390/ma9020117

Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications

1
Département de génie des mines, de la métallurgie et des matériaux, Université Laval, Québec, QC G1V 0A6, Canada
2
Aluminium Research Centre-REGAL, Québec, QC G1V 0A6, Canada
3
Hydro-Quebec Research Institute, Varennes, QC J3X 1S1, Canada
4
Weir American Hydro, Weir Canada Inc., LaSalle, QC H8N 1V1, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Daolun Chen
Received: 26 November 2015 / Revised: 27 January 2016 / Accepted: 15 February 2016 / Published: 19 February 2016
(This article belongs to the Section Advanced Composites)
View Full-Text   |   Download PDF [9918 KB, uploaded 19 February 2016]   |  

Abstract

This study reveals the effect of TiB2 particles on the mechanical and tribological properties of Fe3Al-TiB2 composite coatings against an alumina counterpart. The feedstock was produced by milling Fe3Al and TiB2 powders in a high energy ball mill. The high-velocity oxy-fuel (HVOF) technique was used to deposit the feedstock powder on a steel substrate. The effect of TiB2 addition on mechanical properties and dry sliding wear rates of the coatings at sliding speeds ranging from 0.04 to 0.8 m·s−1 and loads of 3, 5 and 7 N was studied. Coatings made from unreinforced Fe3Al exhibited a relatively high wear rate. The Vickers hardness, elastic modulus and wear resistance of the coatings increased with increasing TiB2 content in the Fe3Al matrix. The wear mechanisms strongly depended on the sliding speed and the presence of TiB2 particles but were less dependent on the applied load. View Full-Text
Keywords: iron aluminide; titanium diboride; high-velocity oxy-fuel; HVOF; mechanical properties; dry sliding wear iron aluminide; titanium diboride; high-velocity oxy-fuel; HVOF; mechanical properties; dry sliding wear
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Amiriyan, M.; Blais, C.; Savoie, S.; Schulz, R.; Gariépy, M.; Alamdari, H. Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications. Materials 2016, 9, 117.

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