Abstract
Medium and high entropy superalloys based on the Ni-Co-Fe system with strengthening L12 γ′ precipitates have been developed. The present study has shown that by controlling the elemental partitioning between γ/γ′, thermal stability of γ′ can be enhanced in the high entropy γ matrix. Most importantly, high entropy superalloys exhibit stable γ–γ′ microstructures with no TCP phases after long-term exposure at elevated temperatures. Therefore, a new alloy design space for stable γ–γ′ microstructure has been presented. Furthermore, due to relatively high content of Fe and Ti, their raw materials cost and alloy density can potentially be lower than those of conventional superalloys.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.