METHOD OF FORMING A PROTECTIVE COATING ON STEEL SURFACES
Patent
·
OSTI ID:4802715
A method is given for coating steel surfaces to inhibit the corrosive attack of liquid metal, e.g., liquid Bi and its alloys with Pb and/or Sn. The method comprises heating a steel containing C, N, and Al, Ti, or Zr to form a stable nitride by reaction of at least 50% of the N content with the Al, Ti, or Zr, and contacting the steel surface with a liquid metal containing >2 ppm Al, Ti, or Zr at 550 to 1100 deg C to form a layer of Al, Ti, or Zr carbide on the surface. The surface may also be protected against erosion by employing a liquid metal containing >2 ppm Zr. (D.L.C.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-013526
- OSTI ID:
- 4802715
- Report Number(s):
- GB 892280
- Country of Publication:
- United Kingdom
- Language:
- English
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Related Subjects
ALUMINUM
ALUMINUM CARBIDES
ALUMINUM NITRIDES
BISMUTH
BISMUTH ALLOYS
CARBON
COATING
CORROSION
FILMS
HIGH TEMPERATURE
LEAD ALLOYS
LIQUID METALS
METALS, CERAMICS, AND OTHER MATERIALS
NITROGEN
STEELS
SURFACES
TIN ALLOYS
TITANIUM
TITANIUM CARBIDES
TITANIUM NITRIDES
ZIRCONIUM
ZIRCONIUM CARBIDES
ZIRCONIUM NITRIDES
ALUMINUM CARBIDES
ALUMINUM NITRIDES
BISMUTH
BISMUTH ALLOYS
CARBON
COATING
CORROSION
FILMS
HIGH TEMPERATURE
LEAD ALLOYS
LIQUID METALS
METALS, CERAMICS, AND OTHER MATERIALS
NITROGEN
STEELS
SURFACES
TIN ALLOYS
TITANIUM
TITANIUM CARBIDES
TITANIUM NITRIDES
ZIRCONIUM
ZIRCONIUM CARBIDES
ZIRCONIUM NITRIDES