Superalloy turbine wheel used for turbojet engine parts
Product Description
Superalloy turbine wheel used for turbojet engine parts
Turbine wheel belongs to turbojet engine parts,The material of turbine wheel is K424, K424 material belongs to high temperature alloy, this material can operate at temperatures above 1,000 degrees Celsius. The diameter of turbine wheel is φ180mm. The casting surface smoothness of turbine wheel can meet Ra3.2μm and casting process is Silica sol process, Casting method is investment vacuum casting, and this turbojet engine thrust is 140kgs.
The below table show mechanal property of turbine wheel:
| State | Tensile property(20℃） | Medium temperature persistence performance（975℃） | |||
| αb(MPa） | δ5（%） | Ψ（%） | α（MPa) | t(h) | |
| casting state | ≥830 | ≥5 | ≥7 | 196 | ≥40 |