Process for the production of vanadium carbide coatings on iron
AssigneeDegussa AG
InventorsUlrich Baudis, Peter Biberbach, Wolfgang Weber
Life of this patent
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Abstract
Vanadium carbide layers are produced on iron and iron alloys having a content of at least 0.1 weight % carbon by treating the workpiece at 800.degree. to 1100.degree. C. in a salt bath which contains 1-30 weight % of vanadium or ferrovanadium powder. The salt bath consists of alkaline earth and/or alkali metal halide.
Claims9
A process for the production of a vanadium carbide layer on iron or an iron alloy having a carbon content of at least 0.1 weight% by a solid state reaction comprising treating a workpiece of the iron or iron alloy at a temperature of 800.degree. to 1100.degree. C. in a salt bath which contains 1-30 weight % of vanadium or ferrovandium powder, said salt bath consisting essentially of 50 to 100% barium chloride and a member selected from the group consisting of an alkaline earth metal halide, another alkali metal halide or a mixture of both an alkali metal halide and another alkaline earth metal halide.
Dependencies are inferred from the claim text.