GAMMA/GAMMA' HARDENED COBALT-BASED SUPERALLOY, POWDER AND COMPONENT

摘要

A cobalt-based superalloy is provided that allows for the production of components that are easy to cast, easy to weld and can be used also at very elevated temperatures.

主权项

1. A cobalt-based superalloy having at least (in at. %):
tungsten (W): 8.5%-9.5%, in particular 9%, aluminum (Al): 8.5%-9.5%, in particular 9%, nickel (Ni): 18%-23%, in particular 20%-21%, titanium (Ti): 1.5%-2.5%, in particular 2%, tantalum (Ta): 1.5%-2.5%, in particular 2%, chromium (Cr): 5%-7%, in particular 6%, optionally hafnium (Hf): 0.05%-0.15%, in particular 0.1%, boron (B): 0.005%-0.015%, in particular 0.01%, and carbon (C): 0.05%-0.15%, in particular 0.1%.