Heat treatment of NiCrFe alloy to optimize resistance to intergr

Details Heat treatment of NiCrFe alloy to optimize resistance to intergr Heat treatment of NiCrFe alloy to optimize resistance to intergr

1982-12-07

1984-11-06

Dean, R.

Metal treatment

Compositions

Heat treating

148162, 148410, C22F 116

Patent

active

044810431

ABSTRACT:
A process of producing a NiCrFe alloy having a high resistance to stress corrosion cracking comprising heating a NiCrFe alloy to a temperature sufficient to enable the carbon present in the alloy body in the form of carbide deposits to enter into solution, rapidly cool the alloy body, and heat the cooled body to a temperature between 1100.degree. to 1500.degree. F. for about 1 to 30 hours.

REFERENCES:
patent: 3434891 (1969-03-01), Wenderott
patent: 3573901 (1971-04-01), Economy
patent: 3645726 (1972-02-01), Copson et al.
patent: 3772090 (1973-11-01), Allen et al.
patent: 3898109 (1975-08-01), Shaw

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