Inventors:
William J. Bishop - Amherst OH
Noel M. Brady - University Heights OH
Walter R. Cribb - Solon OH
Anatoly A. Offengenden - Amherst OH
Assignee:
Brush Wellman, Inc. - Cleveland OH
International Classification:
C22F 108
US Classification:
148660, 148664, 148675, 148686
Abstract:
Large sections of solution annealed, precipitation hardenable alloys which are resistant to internal cracking yet fully hardenable can be produced if, during rapid quenching, the temperature of the section is allowed to stabilize immediately above the alloys solvus temperature before the section is rapidly quenched. Preferably, the temperature of the section is allowed to stabilize a second time, this time at an elevated temperature not so high that significant phase changes occur, before the section is cooled to ambient.