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Title: METHOD OF FORMING A PROTECTIVE COATING ON FERROUS METAL SURFACES

Abstract

A method is described of protecting ferrous metal surfaces from corrosive attack by liquid metals, such as liquid bismuth or lead-bismuth alloys. The nitrogen content of the ferrous metal surface is first reduced by reacting the metal surface with a metal which forms a stable nitride. Thereafter, the surface is contacted with liquid metal containing at least 2 ppm zirconium at a temperature in the range of 550 to 1100 deg C to form an adherent zirconium carbide layer on the ferrous surface.

Inventors:
; ; ;
Issue Date:
OSTI Identifier:
4165917
Patent Number(s):
2926111
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23F - NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
NSA Number:
NSA-14-015930
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
METALS, CERAMICS, AND OTHER MATERIALS; BISMUTH; BISMUTH ALLOYS; CHEMICAL REACTIONS; COATING; COBALT; CORROSION; FILMS; HIGH TEMPERATURE; IRON; LEAD ALLOYS; LIQUID METALS; NICKEL; NITRIDES; NITROGEN; QUANTITY RATIO; STABILITY; SURFACES; ZIRCONIUM CARBIDES

Citation Formats

Schweitzer, D G, Weeks, J R, Kammerer, O F, and Gurinsky, D H. METHOD OF FORMING A PROTECTIVE COATING ON FERROUS METAL SURFACES. United States: N. p., 1960. Web.
Schweitzer, D G, Weeks, J R, Kammerer, O F, & Gurinsky, D H. METHOD OF FORMING A PROTECTIVE COATING ON FERROUS METAL SURFACES. United States.
Schweitzer, D G, Weeks, J R, Kammerer, O F, and Gurinsky, D H. Tue . "METHOD OF FORMING A PROTECTIVE COATING ON FERROUS METAL SURFACES". United States.
@article{osti_4165917,
title = {METHOD OF FORMING A PROTECTIVE COATING ON FERROUS METAL SURFACES},
author = {Schweitzer, D G and Weeks, J R and Kammerer, O F and Gurinsky, D H},
abstractNote = {A method is described of protecting ferrous metal surfaces from corrosive attack by liquid metals, such as liquid bismuth or lead-bismuth alloys. The nitrogen content of the ferrous metal surface is first reduced by reacting the metal surface with a metal which forms a stable nitride. Thereafter, the surface is contacted with liquid metal containing at least 2 ppm zirconium at a temperature in the range of 550 to 1100 deg C to form an adherent zirconium carbide layer on the ferrous surface.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {2}
}