1. Introduce
– Second generation single crystal Ni-based superalloy
– Same chemical composition as PWA 1484, only improved by the addition of Hf
2. Property
– High temperature strength, high temperature creep, fatigue strength, oxidation resistance, excellent castability
| Element | Impact |
|---|---|
| Ni | Provides excellent strength and corrosion resistance |
| Co | Provides strength, creep properties |
| Ta | Provides strength |
| W | Highly strengthening element, provides high temperature creep properties |
| Cr | Provides corrosion resistance, oxidation resistance |
[PWA 1487 Chemical Composition (%)]
| Ni | Cr | Al | Mo | Co |
|---|---|---|---|---|
| Min. 59.45 | Max. 5.00 | Max. 5.60 | Max. 2.00 | Max. 10.00 |
| W | Ta | Re | Hf | |
|---|---|---|---|---|
| Max. 6.00 | Max. 8.70 | Max. 3.00 | Max. 0.25 |
3. Available Form
– Sheet, Plate
– Bar, Rod
– Tubing
– Shafts
– Airfoils
– Disks
4. Application & Product
– Aerospace
| Application | Product |
|---|---|
| Aerospace | Turbine Blades, Turbine Engine Fans, Airfoils |
(1) Turbine Blades / (2) Turbine Engine Fans
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