Pre-coated, ultra-fine, submicron grain titanium and titanium-alloy components
AssigneeThe Boeing Company
InventorSteven G. Keener
Life of this patent
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Abstract
A high-strength, pre-coated, titanium or titanium-alloy material component is provided that includes a titanium or titanium-alloy material article having ultra-fine, submicron grain size microstructure and an organic coating of phenolic resin applied to the surface of the article. The article is prepared from a coarse grain titanium or titanium-alloy powder material that is cryomilled into an ultra-fine, submicron grain material, degassed, and densified. The densified material is formed or otherwise processed into a article, and pre-coated with an organic coating containing phenolic resin prior to installation or assembly.
Claims16
A high-strength, pre-coated, titanium (Ti) or titanium-alloy component comprising
- an article of Ti or Ti-alloy material comprised of a densified ultra-fine grain material having an ultra-fine, submicron grain size, wherein the article of Ti or Ti-alloy material further comprises carbon and hydrogen, and wherein the article of Ti or Ti-alloy material further comprises oxides of titanium that are formed as a result of cryomilling in an inert atmosphere consisting of argon or helium;
- and
- an organic coating of phenolic resin pre-coated on the surface of the article, said organic coating having a thickness of less than 0.0005 inch.
A pre-coated titanium (Ti) or titanium component comprising an article of Ti or Ti-alloy material having an ultra-fine, submicron grain size and further comprising carbon and hydrogen and an organic coating of phenolic resin pre-coated on the surface of the article with said organic coating having a thickness of less than 0.0005 inch, wherein the article of Ti or Ti-alloy material further comprises oxides of titanium that are formed as a result of cryomilling in an inert atmosphere consisting of argon or helium, and wherein the component is prepared by:
- providing the titanium or titanium-alloy material having a first grain size;
- cryogenically milling the titanium or titanium-alloy material in the inert atmosphere consisting of argon or helium into an ultra-fine, submicron grain material having a second grain size less than the first grain size;
- densifying the ultra-fine, submicron grain material to form a densified ultra-fine grain material;
- forming the article from said densified ultra-fine, submicron grain titanium or titanium-alloy material;
- and,
- coating the article with the organic coating containing phenolic resin.
Dependencies are inferred from the claim text.