FORBETTRAD SMIDBARHET HOS NICKELBASERADE VARMHALLFASTA LEGERINGAR

摘要

Methods for increasing the forgeability of cast superalloy materials are described. An extremely overaged microstructure is developed by solutionizing the material and slow cooling in the vicinity of the solvus temperature to cause a precipitation of extremely coarse gamma prime material. Subsequently the material can be isothermally forged.