Patent application number | Description | Published |
20090186238 | BRAZED NANO-GRAINED ALUMINUM STRUCTURES - A method of processing a brazed article includes forming a braze joint with an aluminum component comprising a nano-grained aluminum alloy. | 07-23-2009 |
20090188109 | Friction stir welded bladder fuel tank - A method of fabricating a rolling bladder propellant tank assembly includes providing a pair of half-domes comprising a nanophase metallic material and a bladder formed of a ductile metallic material. A bladder support ring extends from at least one of the pair of half-domes. The pair of half-domes are positioned together to form a cavity therein with a portion of the bladder trapped between the pair of half-domes adjacent to the bladder support ring, wherein the bladder is positioned within the cavity. A seal is formed between the pair of half-domes and the bladder by friction stir welding. A friction stir welding pin used to form the seal is aligned with the bladder support ring during the friction stir welding operation. | 07-30-2009 |
20100236666 | SUPERALLOY POWDER, METHOD OF PROCESSING, AND ARTICLE FABRICATED THEREFROM - A method of processing a superalloy powder includes mechanically alloying nitrogen with superalloy powder particles having at least one nitride-forming element such that each superalloy powder particle includes a microstructure having nitrogen dispersed throughout the microstructure. The powder may then be formed into an article having nitride regions dispersed throughout. | 09-23-2010 |
20100278679 | NANOPHASE CRYOGENIC-MILLED COPPER ALLOYS AND PROCESS - There is provided cryogenic milled nanophase copper alloys and methods of making the alloys. The alloys are fine grained having grains in the size range from about 2 to about 100 nanometers, and greater. The nanophase alloys possess desirable physical properties stemming from the fine grain size, such as potentially high strength. Some embodiments of the cryogenic milled copper alloys may also be tailored for ductility, toughness, fracture resistance, corrosion resistance, fatigue resistance and other physical properties by balancing the alloy composition. In addition, embodiments of the alloys generally do not require extensive or expensive post-cryogenic milling processing. | 11-04-2010 |
20110058975 | METHOD OF PROCESSING A BIMETALLIC PART - A method of processing a bimetallic part includes depositing an intermediary material having a metal powder onto a tooling surface of a cavity of a tool, transforming the intermediary material into a metal layer having a first composition on the tooling surface, and forming a metal core having a second, different composition in the cavity such that the metal layer bonds to the metal core to form a bimetallic part. | 03-10-2011 |
20120202087 | METHOD FOR TREATING A POROUS ARTICLE - A method of treating a porous work piece includes infiltrating a liquid metallic alloy into surface porosity of a work piece and isothermally solidifying the liquid metallic alloy to at least partially fill the surface porosity. | 08-09-2012 |
20130209262 | METHOD OF MANUFACTURING AN AIRFOIL - Disclosed is a method of manufacturing an airfoil. The method includes establishing an Argon (Ar)-free environment, providing a bed within the Argon free environment, providing a set of data instructions for manufacturing the airfoil, and providing a powdered Nickel (Ni)-based alloy on the bed. In one example, the powdered Nickel (Ni)-based alloy consists essentially of about 4.8 wt. % Iron (Fe), about 21 wt. % Chromium (Cr), about 8.6 wt. % Molybdenum (Mo), about 0.07 wt. % Titanium (Ti), about 0.40% Aluminum (Al), about 5.01 wt. % Niobium (Nb), about 0.03 wt. % Carbon (C), about 0.14 wt. % Silicon (Si), and a balance Nickel (Ni). The method further includes fusing the powdered Nickel (Ni)-based alloy with an electron beam with reference to the data instructions to form the airfoil. | 08-15-2013 |