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NIMONIC Alloy 80A UNS N07080: Properties and Applications
NIMONIC Alloy 80A, designated as UNS N07080, is a nickel-chromium alloy known for its excellent high-temperature strength and resistance to oxidation and corrosion. Developed by Rolls-Royce in the mid-20th century, this alloy has become a staple in industries requiring materials that can withstand extreme conditions.
Key Properties of NIMONIC Alloy 80A
NIMONIC Alloy 80A offers a unique combination of mechanical and chemical properties, making it suitable for demanding applications. Below are some of its most notable characteristics:
- High-Temperature Strength: Retains mechanical integrity at temperatures up to 815°C (1500°F).
- Oxidation Resistance: Forms a protective oxide layer when exposed to high temperatures, preventing further degradation.
- Corrosion Resistance: Performs well in corrosive environments, including those with sulfur and chlorine.
- Creep Resistance: Exhibits minimal deformation under prolonged stress at elevated temperatures.
Chemical Composition
The alloy’s composition plays a critical role in its performance. The primary elements in NIMONIC Alloy 80A include:
| Element | Percentage |
|---|---|
| Nickel (Ni) | ≥ 70% |
| Chromium (Cr) | 19-22% |
| Aluminum (Al) | 1.0-1.8% |
| Titanium (Ti) | 1.8-2.7% |
| Iron (Fe) | ≤ 3.0% |
Applications of NIMONIC Alloy 80A
Due to its exceptional properties, NIMONIC Alloy 80A is widely used in industries where high-temperature performance is crucial. Some common applications include:
- Aerospace: Turbine blades, combustion chambers, and exhaust systems in jet engines.
- Power Generation: Gas turbine components and nuclear reactor parts.
- Industrial Furnaces: Heating elements and furnace fixtures.
- Chemical Processing: Equipment exposed to high temperatures and corrosive media.
Keyword: NIMONIC Alloy 80A UNS N07080
Conclusion
NIMONIC Alloy 80A (UNS N07080) is a versatile material that excels in high-stress, high-temperature environments. Its combination of strength, oxidation resistance, and corrosion resistance makes it indispensable in aerospace, power generation, and other demanding industries. Whether in jet engines or industrial furnaces, this alloy continues to prove its reliability and performance.