Journal
SURFACE & COATINGS TECHNOLOGY
Volume 268, Issue -, Pages 24-29Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2014.06.055
Keywords
FeAl/Al2O3 intermetallic composite; Atmospheric plasma spraying; Microstructure; Wear resistance
Funding
- European Marie-Curie program [IPACTS PIRSES-GA-2010-268696]
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FeAl intermetallic composite coating using Al2O3 as an additive has been fabricated by atmospheric plasma spraying. The microstructure and mechanical properties of the FeAl/Al2O3 composite coating were comparatively studied with those of pure FeAl coating. A uniform dispersion of Al2O3 in the FeAl matrix can be observed for FeAl/Al2O3 composite coating. Moreover, microhardness and adhesive strength improved after the incorporation of Al2O3 particles. The tribological results show that plasma-sprayed FeAl/Al2O3 composite coatings have excellent wear resistance under dry sliding wear test conditions due to the combination of the high yield strength of the intermetallic compound FeAl and the high hardness of the Al2O3 dispersoids. (C) 2014 Elsevier B.V. All rights reserved.
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