STEP 1
High-Temperature Strength
PWA 1480 retains excellent tensile strength of up to 1250 MPa at elevated temperatures, delivering reliable performance for jet engines and industrial turbines.
PWA 1480 Single-crystal Nickel-base Superalloy
Large-Scale Superalloys R&D And Manufacturing BasePWA 1480 is a first-generation high-performance single-crystal nickel-base superalloy, developed mainly for high-temperature aerospace components including gas turbine blades and vanes in aircraft engines.
PWA 1480 Single-crystal Nickel-base Superalloy Introduction
PWA 1480 is a high performance single-crystal superalloy engineered to deliver outstanding mechanical properties at elevated temperatures. Widely deployed for jet engine turbine blades, it exhibits excellent resistance to thermal fatigue and creep at temperatures above 980°C.
The alloy features a carefully balanced composition of nickel, chromium, cobalt and tantalum, which imparts corrosion resistance, mechanical strength and stability under extreme operating conditions. Its single-crystal microstructure removes grain boundaries, thereby enhancing mechanical performance and fatigue life at high temperatures.
PWA 1480 Chemical Composition
| Element | PWA 1480 |
|---|---|
| Chromium (Cr) | 10% |
| Cobalt (Co) | 5% |
| Molybdenum (Mo) | 2% |
| Tungsten (W) | 4% |
| Aluminium (Al) | 5% |
| Tantalum (Ta) | 12% |
| Hafnium (Hf) | 1.5% |
| Nickel (Ni) | Bal. |
PWA 1480 Physical Properties
- Single-Crystal Structure: Fully eliminates grain boundaries, delivering markedly improved resistance to high-temperature creep, thermal fatigue and stress rupture relative to conventional polycrystalline alloys.
- Operating Temperature: Retains structural integrity and mechanical strength under extreme temperatures above 980°C.
- Composition: Primarily nickel-based, balanced with strengthening alloying elements including chromium, cobalt and tantalum. It features a high volume fraction of reinforcing γ' phase, offering a good combination of oxidation resistance and high-temperature stability.
Features of PWA 1480 Superalloy
Applicaitons of PWA 1480 Superalloy
- Aerospace & Aviation: PWA 1480 is widely used for jet‑engine turbine blades, demanding high strength and thermal‑fatigue resistance.
- Power Generation: Applied in gas‑turbine components to guarantee stable power delivery under harsh operating conditions.
- Oil & Gas: Deployed on high‑temperature valves and gas‑turbine parts requiring high durability and corrosion resistance.
- Energy: Leveraged for turbines in both conventional and renewable power plants for consistent operational reliability.
- Marine: Used in turbine hardware and propulsion systems to maintain performance in corrosive marine environments.
- Mining: Provides robust service life for abrasive‑environment components such as high‑pressure pumps.
- Automotive: Utilized within motorsport and high‑performance engines for superior thermal stability and mechanical strength.
- Chemical Processing: Suitable for high‑temperature reactors and heat exchangers, benefiting from its native corrosion resistance.
- Pharmaceutical & Food: Selected for assemblies exposed to high‑temperature sterilization and corrosive media.
- Military & Defense: Specified for jet engines and advanced propulsion systems of fighter aircraft.
- Nuclear: Adopted for turbine and reactor components, taking advantage of thermal‑fatigue and radiation‑resistant characteristics.
