We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Microstructure and Tribological Behavior of Supersonic Atmospheric Plasma-Sprayed Mo-/Fe-Based Amorphous Coating.
- Authors
Liu, Q.; Li, T. H.; Liu, N.; Liu, M.; Wang, B.; Bai, Y.; Wang, Y.; Ding, F.; Wang, H. D.
- Abstract
Fe-based amorphous coatings have been widely used for various industrial applications due to some excellent characteristics such as high hardness, high strength and high corrosion resistance. However, the poor oxidation resistance greatly limits their application in the field of high-temperature friction and wear. Compared with a Fe-based amorphous coating, a Mo-based amorphous coating is expected to have superior anti-wear performance at elevated temperatures. In this study, Mo- and Fe-based amorphous coatings were deposited by the supersonic atmospheric plasma spraying (SAPS) method. The microstructure and sliding wear behavior of the coatings were comparatively studied. It was found that the wear resistance of the Mo-based amorphous coating was higher than that of the Fe-based amorphous coating although the hardness of the former was a little lower than that of the latter. As the temperature increased to 250 °C, the weak bonding of the inter-splat interface and the formation of hard α-Fe2O3 debris aggravated the three-body abrasive wear and therefore worsened the tribological responses of the coatings. With the increase of temperature, the wear mechanism of the Mo- and the Fe-based amorphous coatings gradually transformed from dominate fatigue wear, with abrasive wear as a secondary mechanism, to dominate abrasive wear, accompanied by oxidation wear.
- Subjects
SLIDING wear; PLASMA spraying; MICROSTRUCTURE; WEAR resistance; SURFACE coatings; FRETTING corrosion
- Publication
Journal of Thermal Spray Technology, 2022, Vol 31, Issue 8, p2370
- ISSN
1059-9630
- Publication type
Article
- DOI
10.1007/s11666-022-01460-7