Cyclic recovery heat treatment

Details Cyclic recovery heat treatment Cyclic recovery heat treatment

1984-04-23

1996-09-03

Lovering, Richard D.

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148675, C21D 178, C22F 110

Patent

active

055519997

ABSTRACT:
A cyclic heat treatment for eliminating the tendency of moderately deformed superalloys to recrystallize is described. The superalloys are subjected to a temperature cycle including a period at a high temperature and a period at a low temperature. The resultant heat treated articles are resistant to recrystallization at temperatures above the gamma prime solvus temperature.

REFERENCES:
patent: 3272666 (1966-09-01), Symonds
patent: 3415641 (1968-12-01), Ross
patent: 3494709 (1970-02-01), Piearcey
patent: 3677830 (1972-07-01), Cox et al.
patent: 3741821 (1973-06-01), Athey et al.
patent: 3753790 (1973-08-01), Walker et al.
patent: 4253885 (1981-03-01), Maurer et al.
patent: 4305761 (1981-12-01), Bruch et al.

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