Abstract
This paper aims to improve the oxidation resistance of plasma-sprayed CoNiCrAlY coatings by optimizing microstructure. A series of coatings that contained 22.5 ± 2.3%, 35.4 ± 2.2%, and 57.8 ± 2.5% unmelted particles were fabricated by a high efficiency supersonic plasma spraying (SAPS) system. Experimental results showed that the β phase mainly existed in the unmelted particles, and its content increased with increasing the content of unmelted particles. The coating that contained 35.4 ± 2.2% unmelted particles showed the best oxidation resistance. An accurate numerical model obtained from molecular dynamics simulation was used to explain the experimental results. Our study confirmed that an appropriate amount of unmelted particles can improve the oxidation resistance of CoNiCrAlY coating.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
