METHOD OF NITRIDING STEEL

METHOD OF NITRIDING STEEL Method of nitriding steel surfaces by circulating thereover a ternary mixture of ammonia, hydrogen and water at an elevated temperature and atmospheric pressure. Most of the harmful effects of HCN formation are avoided by utilizing a furnace lining consisting of a coated ni...

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Hauptverfasser: KNECHTEL, HERBERT E, PODGURSKI, HARRY H
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PODGURSKI, HARRY H
description METHOD OF NITRIDING STEEL Method of nitriding steel surfaces by circulating thereover a ternary mixture of ammonia, hydrogen and water at an elevated temperature and atmospheric pressure. Most of the harmful effects of HCN formation are avoided by utilizing a furnace lining consisting of a coated nickel base alloy, and by adding from 1 to 3% water to the nitriding gas and flowing the nitriding gas at a rate as low as 1.5 to 6.1 ml per hour per cm2 of steel surface area.
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subjects CHEMICAL SURFACE TREATMENT
CHEMISTRY
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING MATERIAL WITH METALLIC MATERIAL
COATING METALLIC MATERIAL
DIFFUSION TREATMENT OF METALLIC MATERIAL
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
METALLURGY
SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
title METHOD OF NITRIDING STEEL
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