Metal treatment – Compositions – Heat treating
Patent
1982-11-10
1984-12-25
Rutledge, L. Dewayne
Metal treatment
Compositions
Heat treating
148 115Q, 148127, 148427, 228158, C22D 110
Patent
active
044901860
ABSTRACT:
The weld zone in Hastelloy X nickel superalloy is thermal mechanically worked by cold working the weld zone to reduce its thickness by about 5-40%, and by annealing at 1120.degree.-1175.degree. C. for one hour to cause recrystallization. Low cycle fatigue properties of laser and gas tungsten arc weld zones are substantially increased.
REFERENCES:
patent: 3279050 (1966-10-01), Simich
patent: 3645726 (1972-02-01), Copson et al.
Field Thomas T.
Papineau Patrick F.
Sines Roger B.
McDowell Robert L.
Nessler C. G.
Rutledge L. Dewayne
United Technologies Corporation
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