A process for the heat treatment of a nickel super alloy against state

摘要

described are heat treatments to improve the dauerwechselfestigkeit of superlegierungsgegenstu00e4nden without bad influence of other mechanical properties. the entire heat beneath the 'solvustemperatur executed so that no appreciable growth occurs.the wu00e4rmebehandlungszyklus leads to the formation of particles in a controlled way and with controlled morphology, first at the grain boundaries and inside the grains. the resulting microstructure possesses the advantages of a fine-grained microstructure (higher resistance to ermu00fcdungsriu00dfeinleitung) and a fine particle size '(increased resistance to crack growth).