Sliding wear behavior of plasma sprayed Fe3Al–Al2O3 graded coatings

Zhang, Jingde, Sun, Kangning, Wang, Jiangting, Tian, Baoyan, Wang, Hongsheng and Yin, Yansheng 2008, Sliding wear behavior of plasma sprayed Fe3Al–Al2O3 graded coatings, Thin solid films, vol. 516, no. 16, pp. 5681-5685, doi: 10.1016/j.tsf.2007.07.126.

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Title Sliding wear behavior of plasma sprayed Fe3Al–Al2O3 graded coatings
Author(s) Zhang, Jingde
Sun, Kangning
Wang, JiangtingORCID iD for Wang, Jiangting
Tian, Baoyan
Wang, Hongsheng
Yin, Yansheng
Journal name Thin solid films
Volume number 516
Issue number 16
Start page 5681
End page 5685
Total pages 5
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2008-06
ISSN 0040-6090
Keyword(s) Fe3A1
Graded coatings
Plasma spray
Wear mechanism
Summary Fe3Al–Al2O3 double-layer coatings (DC), Fe3Al-Fe3Al/50%Al2O3–Al2O3 triple-layer coatings (TC) and Fe3Al-Al2O3 graded coatings (GC) were produced from a series of Fe3Al/Al2O3 composite powders with different compositions on low carbon steel substrate using PLAXAIR plasma spraying equipment. Friction behaviors and wear resistance of the three kinds of coatings have been investigated under different loads. Tests were carried out using an MRH-3 standard machine, in lineal contact sliding under dry condition against hardmetal, at a sliding velocity of about 1.57 ms−1. Wear rates under different loads were measured and the friction coefficients were recorded. SEM analysis was carried out to identify the wear mechanisms. The results show that the GC has higher wear-resistance than DC and TC. The tribological characteristics of graded coating were different along the depth of the coatings, and the surface of coatings with pure Al2O3 does not show the best wear resistance. The wear rate and friction coefficients were also different under different loads. The failure types of plasma-sprayed Fe3Al-Al2O3 graded coatings in lineal contact were: loosening of ceramic particles, crack nucleation and propagation, brittle fracture, plastic deformation, and adhesive wear.
Language eng
DOI 10.1016/j.tsf.2007.07.126
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, Elsevier
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Document type: Journal Article
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