PWA 1426(Ni-Co-Cr-W-Ta)

1. Introduce – Second generation columnar grain bound alloy – High temperature strength similar to single crystal (SC) Ni-based alloys – Designed for advanced military and commercial turbine airfoil applications – Improved mechanical properties (creep-rupture strength, thermal fatigue and oxidation resistance) compared to earlier columnar grain alloys (PWA 1422) * PWA Alloy : Mainly applied to airfoil (or airfoil) compressor blades in turbine engine fans * Single crystal (SC) : A solid in which the entire crystal is regularly oriented along a regular crystal axis * Colu...