PWA 1480

1. Introduce – A first-generation single-crystal (SC) nickel-based superalloy developed by Pratt & Whitney; it was the first single-crystal alloy to be used in commercial turbines – The absence of grain boundaries minimizes the presence of grain-boundary strengthening elements, resulting in improved high-temperature creep and thermal fatigue properties compared to conventional dendritic (DS) alloys * PWA Alloy √ An alloy primarily used for airfoil compressor blades in turbine engine fans * Single Crystal (SC) √ A state in which the entire crystal is arranged regularly along a s...