Process for producing austenitic ferrous alloys

Details Process for producing austenitic ferrous alloys Process for producing austenitic ferrous alloys

1974-06-12

1976-03-09

Lovell, C.

Metal treatment

Compositions

Heat treating

148 166, 148 39, C23C 1116, C22C 3804

Patent

active

039430103

ABSTRACT:
There is disclosed a method for producing austenitic ferrous alloys containing from 21-45% manganese and from 10-30% chromium by exposing the alloys in solid form to nitrogen or nitrogen compounds at a temperature of at least 1700.degree.F for a time period sufficient to raise the nitrogen content of at least the surface of the alloy to at least 0.85%.

REFERENCES:
patent: 1207848 (1916-12-01), Bray
patent: 2745740 (1956-05-01), Jackson et al.
patent: 2778731 (1957-01-01), Carney
patent: 2862812 (1958-12-01), Dulis et al.
patent: 2909425 (1959-10-01), Hsiao et al.
patent: 2940880 (1960-06-01), Stanley et al.
patent: 3854938 (1974-12-01), Baybrook et al.

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