| abstract |
A PROCESS FOR PRODUCING ARTICLE RESISTANT TO HIGH TEMPERATURE CORROSION WHICH COMPRISES THE COMBINATION OF (A) CONTROLLED ELECTRODEPOSITION OF PARTICULATE METAL, PARTICULARLY ALUMINUM, ALUMINUM ALLOY, A MIXTURE OF ALUMINUM AND AT LEAST ONE OTHER MTAL OR METAL OXIDE OR A MIXTURE OF ALUMINUM AND AT LEAST ONE ALLOY, AND A HEATFUGITIVE, CHEMICALLY IONIZABLE ORGANIC FILM-FORMER UPON THE SURFACE OF A SUBSTRATE SELECTED FROM NICKELS ALLOYS COBALT ALLOYS, AND IRON ALLOYS, AND (B) CONTROLLED HEAT TREATMENT OF THE THUS COATED SUBSTRATE IN AN AMBIENT ESSENTIALLY INERT TO THE PARTICLES DEPOSITED TO REMOVE THE ORGANIC FILM-FORMER AND TO DIFFUSE THE METAL OR METALS OF THE DEPOSIT INTO A SURFACE OF THE ALLOY SUBSTRATE. |