Method for the surface treatment of an iron or iron alloy articl

Details Method for the surface treatment of an iron or iron alloy articl Method for the surface treatment of an iron or iron alloy articl

1987-07-24

1989-04-04

Silverberg, Sam

Chemistry: electrical and wave energy

Processes and products

148 155, 148 14, C23C 832

Patent

active

048183512

ABSTRACT:
A surface layer which is composed of the carbonitride of at least one of vanadium and chromium is formed on an article made of iron or an iron alloy if the article, a material containing at least one of vanadium and chromium and a treating agent are heated together. The treating agent may be composed of at least one of the cyanides and cyanates of alkali metals and alkaline earth metals. The layer adhering closely to the article can be formed efficiently at a temperature which is so low that virtually no thermal strain may develop in the article.

REFERENCES:
patent: 3401066 (1968-09-01), Gnafimiller

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