Predictive design of novel nickel-based superalloys beyond Haynes 282
- Ames Laboratory (AMES), Ames, IA (United States)
- Indian Institute of Technology Ropar, Rupnagar (India)
- Haynes International, Kokomo, IN (United States)
- Ames Laboratory (AMES), Ames, IA (United States); Iowa State University, Ames, IA (United States)
Nickel-based superalloys are in great demand for harsh-service conditions involving high temperatures and oxidative environments. Haynes 282 stands out due to its excellent high-temperature properties and easy fabricability. However, the upper operation temperature of Haynes 282 is limited due to its relatively low liquidus temperature. Equipped with high-fidelity density-functional theory calculations and high-throughput experimentation methodology, we explored new compositional spaces that exhibit higher liquidus temperature and higher strength. While maintaining the manufacturability, the newly designed alloy shows improved strength and ductility at room temperature and better oxidation resistance up to 800°C. Here, the new compositions showcase a minor change in the refractory and metalloid content can significantly impact the mechanical and oxidation performance of superalloys.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
- Grant/Contract Number:
- AC02-07CH11358
- OSTI ID:
- 2367357
- Report Number(s):
- IS-J--11,343
- Journal Information:
- Acta Materialia, Journal Name: Acta Materialia Vol. 275; ISSN 1359-6454
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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