Corrosion protective coating for metallic materials

Title: Corrosion protective coating for metallic materials

Full Record
Other Related Research

Abstract

Corrosion protective coatings for metallic materials, particularly aluminum and aluminum alloys, produced with simple, low-cost equipment and materials other than toxic metals or metal salts, or metal cyanides. The metallic material is cleaned, degreased, and deoxidized, the surface is converted to a substantially alkaline condition, and the surface is chemically sealed with inorganic metal compounds.

Inventors:

Buchheit, Rudolph G ^[1]; Martinez, Michael A ^[1]

Albuquerque, NM

Issue Date:: 1998-01-01

Research Org.:: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

OSTI Identifier:: 871570

Patent Number(s):: 5756218

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

Show more

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/31678 - Of metal

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C22/60 - using alkaline aqueous solutions with pH greater than 8
C23C22/66 - Treatment of aluminium or alloys based thereon

Show less

DOE Contract Number:: AC04-94AL85000

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: corrosion; protective; coating; metallic; materials; coatings; particularly; aluminum; alloys; produced; simple; low-cost; equipment; toxic; metals; metal; salts; cyanides; material; cleaned; degreased; deoxidized; surface; converted; substantially; alkaline; condition; chemically; sealed; inorganic; compounds; protective coatings; toxic metal; toxic metals; metallic materials; metallic material; protective coating; metal salts; metal compound; metal compounds; metal salt; aluminum alloy; aluminum alloys; alkaline condition; organic metal; inorganic metal; corrosion protective; /428/427/

Citation Formats


                    Buchheit, Rudolph G, and Martinez, Michael A. Corrosion protective coating for metallic materials.  United States: N. p., 1998. 
        Web.

Copy to clipboard


                    Buchheit, Rudolph G, & Martinez, Michael A. Corrosion protective coating for metallic materials.  United States.

Copy to clipboard


                    Buchheit, Rudolph G, and Martinez, Michael A. Thu .  
        "Corrosion protective coating for metallic materials".  United States.  https://www.osti.gov/servlets/purl/871570.

Copy to clipboard


                    
@article{osti_871570,

  title        = {Corrosion protective coating for metallic materials},

  author       = {Buchheit, Rudolph G and Martinez, Michael A},

  abstractNote = {Corrosion protective coatings for metallic materials, particularly aluminum and aluminum alloys, produced with simple, low-cost equipment and materials other than toxic metals or metal salts, or metal cyanides. The metallic material is cleaned, degreased, and deoxidized, the surface is converted to a substantially alkaline condition, and the surface is chemically sealed with inorganic metal compounds.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Hardface coating systems and methods for metal alloys and other materials for wear and corrosion resistant applications

Patent Seals, Roland D.

The present disclosure relates generally to hardface coating systems and methods for metal alloys and other materials for wear and corrosion resistant applications. More specifically, the present disclosure relates to hardface coatings that include a network of titanium monoboride (TiB) needles or whiskers in a matrix, which are formed from titanium (Ti) and titanium diboride (TiB.sub.2) precursors by reactions enabled by the inherent energy provided by the process heat associated with coating deposition and, optionally, coating post-heat treatment. These hardface coatings are pyrophoric, thereby generating further reaction energy internally, and may be applied in a functionally graded manner. The hardfacemore »« less
Full Text Available
Hardface coating systems and methods for metal alloys and other materials for wear and corrosion resistant applications

Patent Seals, Roland D.

The present disclosure relates generally to hardface coating systems and methods for metal alloys and other materials for wear and corrosion resistant applications. More specifically, the present disclosure relates to hardface coatings that include a network of titanium monoboride (TiB) needles or whiskers in a matrix, which are formed from titanium (Ti) and titanium diboride (TiB.sub.2) precursors by reactions enabled by the inherent energy provided by the process heat associated with coating deposition and, optionally, coating post-heat treatment. These hardface coatings are pyrophoric, thereby generating further reaction energy internally, and may be applied in a functionally graded manner. The hardfacemore »« less
Full Text Available
Method of coating metal surfaces to form protective metal coating thereon

Patent Krikorian, Oscar H [Danville, CA]; Curtis, Paul G [Tracy, CA]

A process is disclosed for forming a protective metal coating on a metal surface using a flux consisting of an alkali metal fluoride, an alkaline earth metal fluoride, an alkali metal fluoaluminate, an alkali metal fluosilicate, and mixtures thereof. The flux, in particulate form, is mixed with particles of a metal coating material which may comprise aluminum, chromium, mixtures thereof, and alloys containing at least 50 wt. % aluminum and the particulate mixture is applied to the metal surface in a single step, followed by heating the coated metal surface to a temperature sufficient to cause the metal coating materialmore »« less
Full Text Available
Chemical conversion coating for protecting magnesium alloys from corrosion

Patent Bhargava, Gaurang; Allen, Fred M.; Skandan, Ganesh; ...

A chromate-free, self-healing conversion coating solution for magnesium alloy substrates, composed of 10-20 wt. % Mg(NO.sub.3).sub.2.6H.sub.2O, 1-5 wt. % Al(NO.sub.3).sub.3.9H.sub.2O, and less than 1 wt. % of [V.sub.10O.sub.28].sup.6- or VO.sub.3.sup.- dissolved in water. The corrosion resistance offered by the resulting coating is in several hundreds of hours in salt-spray testing. This prolonged corrosion protection is attributed to the creation of a unique structure and morphology of the conversion coating that serves as a barrier coating with self-healing properties. Hydroxoaluminates form the backbone of the barrier protection offered while the magnesium hydroxide domains facilitate the "slow release" of vanadium compounds asmore »« less
Full Text Available
Molten metal containment vessel with rare earth oxysulfide protective coating thereon and method of making same

Patent Krikorian, Oscar H [Danville, CA]; Curtis, Paul G [Tracy, CA]

An improved molten metal containment vessel is disclosed in which wetting of the vessel's inner wall surfaces by molten metal is inhibited by coating at least the inner surfaces of the containment vessel with one or more rare earth oxysulfide or rare earth sulfide compounds to inhibit wetting and or adherence by the molten metal to the surfaces of the containment vessel.
Full Text Available

Similar Records