Journal
SURFACE & COATINGS TECHNOLOGY
Volume 316, Issue -, Pages 71-74Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2017.02.073
Keywords
High-entropy alloy; Thermal spray; Overlay coating; Mechanical properties; Oxidation
Funding
- National Institute for Materials Science, Japan (International Cooperative Graduate Program)
Ask authors/readers for more resources
The present works investigated the microstructure, mechanical properties and oxidation behavior of the Ni0.2Co0.6Fe0.2CrSi0.2AlTi0.2 high-entropy alloy (HEA) coating fabricated by atmospheric plasma spraying (APS) and high-velocity oxygen-fuel spraying (HVOF) process. The hardness of HEA coating is about 800 HV and its wear resistance (20 m/mm(3)) is nearly twice higher than that of the SUJ2 bearing steel (12 m/mm3). The isothermal oxidation weight gain test demonstrates that the HEA coating exhibits good oxidation resistance similar to MCrAIY coating at 1100 degrees C due to the formation of a protective alpha-Al2O3 scale. The thermal-sprayed HEA coating is thus promising as an overlay coating for high-temperature applications. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
