Method of nitriding steel

Details Method of nitriding steel Method of nitriding steel

1990-02-12

1991-05-07

Sheehan, John P.

Metal treatment

Compositions

Heat treating

148 14, 148 203, C21D 106

Patent

active

050133713

ABSTRACT:
Steel is nitrided first by treating the steel to be nitrided with NF.sub.3 at elevated temperature to form a fluorinated layer on the steel, and then the steel is nitrided by heating in a nitriding atmosphere.

REFERENCES:
patent: 1958575 (1934-05-01), Hengstenberg
patent: 2851387 (1958-09-01), Low
patent: 3140205 (1964-07-01), Malcolm
patent: 152947B1 (1981-12-16), DEX Fed. Rep. of Germany

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