Nitride casehardening process and the nitrided product thereof

Details Nitride casehardening process and the nitrided product thereof Nitride casehardening process and the nitrided product thereof

1979-11-16

1981-04-28

Ozaki, G.

Metal treatment

Compositions

Heat treating

148 315, C21D 100

Patent

active

042643805

ABSTRACT:
A method of nitriding ferrous alloys for improving the quality and integrity of the resultant case or hardened surface portion formed thereby, comprising the application of a specific combination of sequenced temperature and nitrogen conditions.

REFERENCES:
patent: 1774999 (1930-09-01), Sergeson
patent: 1804176 (1931-05-01), McQuaid
patent: 1838195 (1931-12-01), Sergeson
patent: 1958575 (1934-05-01), Hengstenberg
patent: 1965798 (1934-07-01), Egan
patent: 2025134 (1935-12-01), Stammberger
patent: 2188137 (1940-01-01), Malcom
patent: 2437249 (1948-03-01), Floe
patent: 2596981 (1952-05-01), Chenault et al.
patent: 2779697 (1957-01-01), Chenault et al.
patent: 2789930 (1957-04-01), Engelhard
patent: 3144362 (1964-08-01), Bradd
Engineering Materials Handbook, McGraw-Hill Book Co., N.Y., 1958, pp. 21-22 to 21-24.

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