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Title: Method for forming carbide coating on various metals and their alloys

Abstract

A method is described for forming a carbide coating on a metal substrate selected from the group consisting of Group IVA metals, Group VA metals, Group VIA metals and alloys of said metals which comprises: providing a bath consisting essentially of a molten metal under an inert gas atmosphere wherein the molten metal is selected from the group consisting of alkali metals, alkaline earth metals and mixtures thereof; and then dissolving in the molten metal bath an amount of carbon from about two percent to about twenty percent by weight of the mixture of molten metal and carbon; placing the metal substrate in the molten metal bath containing dissolved carbon; maintaining the metal substrate in the molten metal bath until a carbide coating is formed on the metal substrate; and removing the carbide coated metal substrate from the molten metal bath; wherein the metal substrate is heated in an atmosphere containing nitrogen for a sufficient time to form a visual nitride layer on the surface of the metal substrate before the metal substrate is placed in the molten metal bath.

Inventors:
; ;
Publication Date:
OSTI Identifier:
6301990
Patent Number(s):
US 5234721; A
Application Number:
PPN: US 7-358549
Assignee:
Rostoker, Inc., Burnham, IL (United States)
Resource Type:
Patent
Resource Relation:
Patent File Date: 26 May 1989
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CARBIDES; SYNTHESIS; CARBON; COATINGS; DISSOLUTION; LIQUID METALS; METALS; SUBSTRATES; CARBON COMPOUNDS; ELEMENTS; FLUIDS; LIQUIDS; NONMETALS; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication

Citation Formats

Rostoker, W, Munster, J J, and Klimczak, G W. Method for forming carbide coating on various metals and their alloys. United States: N. p., 1993. Web.
Rostoker, W, Munster, J J, & Klimczak, G W. Method for forming carbide coating on various metals and their alloys. United States.
Rostoker, W, Munster, J J, and Klimczak, G W. Tue . "Method for forming carbide coating on various metals and their alloys". United States.
@article{osti_6301990,
title = {Method for forming carbide coating on various metals and their alloys},
author = {Rostoker, W and Munster, J J and Klimczak, G W},
abstractNote = {A method is described for forming a carbide coating on a metal substrate selected from the group consisting of Group IVA metals, Group VA metals, Group VIA metals and alloys of said metals which comprises: providing a bath consisting essentially of a molten metal under an inert gas atmosphere wherein the molten metal is selected from the group consisting of alkali metals, alkaline earth metals and mixtures thereof; and then dissolving in the molten metal bath an amount of carbon from about two percent to about twenty percent by weight of the mixture of molten metal and carbon; placing the metal substrate in the molten metal bath containing dissolved carbon; maintaining the metal substrate in the molten metal bath until a carbide coating is formed on the metal substrate; and removing the carbide coated metal substrate from the molten metal bath; wherein the metal substrate is heated in an atmosphere containing nitrogen for a sufficient time to form a visual nitride layer on the surface of the metal substrate before the metal substrate is placed in the molten metal bath.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {8}
}