Process for controlling fused salt nitridation of metals with a

Details Process for controlling fused salt nitridation of metals with a Process for controlling fused salt nitridation of metals with a

1975-03-21

1977-08-16

Satterfield, Walter R.

Metal treatment

Compositions

Heat treating

148 20, 148 27, C21D 148

Patent

active

040424278

ABSTRACT:
A process for controlling the nitriding effect of a nitriding bath of a salt melt containing alkali cyanate for the nitridation of iron and iron alloys wherein the nitriding effect of the bath is maintained in a specific range by determining the voltage occurring at an electrode of a solid electrolyte which conducts oxygen ions immersed in the nitriding bath.

REFERENCES:
patent: 2568860 (1951-09-01), Leininger et al.
patent: 3022204 (1962-02-01), Muller et al.
patent: 3726772 (1973-04-01), Takahashi et al.
patent: 3752753 (1973-08-01), Fitterer
patent: 3912547 (1975-10-01), Gaucher et al.

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