High entropy alloy composition
A high entropy alloy composition with a specific single-phase structure and elemental composition addresses the cost and performance limitations of nickel-based alloys like Alloy 625, offering enhanced corrosion resistance and operating efficiency at reduced material costs.
WO2025019774A1PCT designated stage expired Publication Date: 2025-01-23RTX CORP
Patent Information
- Application Number
- PCT/US2024/038749
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-07-19
- Filing Date
- 2024-07-19
- Publication Date
- 2025-01-23
Smart Images
Figure US2024038749_23012025_PF_FP_ABST
Abstract
A high-entropy alloy includes a single-phase, face centered cubic structure composition containing between 43.0 and 49.9 at% nickel, between 16.0 and 26.0 at% chromium, between 6.5 and 16.5 at% iron, between 1.5 and 4.5 at% molybdenum, between 2.0 and 7.5 at% aluminum and between 6.5 and 11.0 at% cobalt. Such compositions are good replacements for more expensive nickel-based alloys and have good strength and corrosion resistance properties.
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Citation Information
Patent Citations
Low-density low-expansion high-entropy high-temperature alloy and preparation method thereof
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