Improvements in microstructure and wear resistance of plasma-sprayed Fe-based amorphous coating by laser-remelting

Jiang, Chaoping, Chen, Hong, Wang, Gui, Chen, Yongnan, Xing, Yazhe, Zhang, Chunhua and Dargusch, Matthew (2017) Improvements in microstructure and wear resistance of plasma-sprayed Fe-based amorphous coating by laser-remelting. Journal of Thermal Spray Technology, 26 4: 778-786. doi:10.1007/s11666-017-0546-5


Author Jiang, Chaoping
Chen, Hong
Wang, Gui
Chen, Yongnan
Xing, Yazhe
Zhang, Chunhua
Dargusch, Matthew
Title Improvements in microstructure and wear resistance of plasma-sprayed Fe-based amorphous coating by laser-remelting
Journal name Journal of Thermal Spray Technology   Check publisher's open access policy
ISSN 1059-9630
1544-1016
Publication date 2017-04-01
Sub-type Article (original research)
DOI 10.1007/s11666-017-0546-5
Open Access Status Not yet assessed
Volume 26
Issue 4
Start page 778
End page 786
Total pages 9
Place of publication New York, NY, United States
Publisher Springer New York LLC
Collection year 2018
Language eng
Abstract Amorphous coating technology is an attractive way of taking advantage of the superior properties of amorphous alloys for structural applications. However, the limited bonds between splats within the plasma-sprayed coatings result in a typically lamellar and porous coating structure. To overcome these limitations, the as-sprayed coating was treated by a laser-remelting process. The microstructure and phase composition of two coatings were analyzed using scanning electron microscopy with energy-dispersive spectroscopy, transmission electron microscopy, and x-ray diffraction. The wear resistance of the plasma-sprayed coating and laser-remelted coating was studied comparatively using a pin-on-disc wear test under dry friction conditions. It was revealed that the laser-remelted coating exhibited better wear resistance because of its defect-free and amorphous-nanocrystalline composited structure.
Keyword Amorphous coating
Laser
Microstructure
Wear
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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