Patent application number | Description | Published |
20080220236 | SOFT MAGNETIC MATERIALS - An article including a monolithic body including iron, cobalt, and nitrogen is provided. The monolithic body includes a matrix phase and a plurality of particles disposed within the matrix phase. The particles include a phase comprising nitrogen. | 09-11-2008 |
20080236288 | INSPECTION SYSTEMS AND METHODS FOR DETECTION OF MATERIAL PROPERTY ANOMALIES - A method for inspecting a part is provided. The method includes immersing the part in a couplant medium, delivering ultrasonic wave energy to at least one subvolume of the part using an ultrasonic transducer immersed in the couplant medium and receiving ultrasonic wave energy from the part at a fundamental frequency and at least one harmonic frequency using an ultrasonic receiver immersed in the couplant medium. The method also includes generating a nonlinear image corresponding to at least one material property variation of the part using the received ultrasonic energy and using the nonlinear image of the part to determine whether one or more material property anomalies are present in the part. | 10-02-2008 |
20080257517 | MOLD ASSEMBLY FOR USE IN A LIQUID METAL COOLED DIRECTIONAL SOLIDIFICATION FURNACE - A mold assembly for a liquid metal cooled directional solidification furnace having a cooling chamber provided with liquid metal and a heating chamber includes a mold member having a main body portion that defines an interior mold cavity. The mold member is adapted to be positioned in the heating chamber. The mold assembly also includes a chill-plate formed from a material having a thermal diffusivity a 600° K greater than approximately 10 E-6 m2/s, inert to at least one of molten tin and molten aluminum and adapted to be at least partially immersed in the liquid metal. The chill-plate includes a main body portion having a first surface extending to a second surface through an intermediate portion. The chill-plate is adapted to establish a thermal gradient between the mold member and the heating chamber. | 10-23-2008 |
20080290568 | REINFORCED REFRACTORY CRUCIBLES FOR MELTING TITANIUM ALLOYS - Reinforced crucibles for melting titanium alloys having a facecoat including at least one facecoat layer, a backing including at least one backing layer, and at least one reinforcing element applied to at least a portion of one or more of the facecoat layer, the backing layer, or a combination thereof where the reinforcing element includes at least one composition selected from ceramic compositions, metallic compositions, and combinations thereof. | 11-27-2008 |
20080290569 | CRUCIBLES FOR MELTING TITANIUM ALLOYS - Crucibles for melting titanium alloys having a facecoat including at least one facecoat layer containing an oxide selected from scandium oxide, yttrium oxide, hafnium oxide, a lanthanide series oxide, and combinations thereof, and a backing including at least one backing layer where the crucible has a backing to facecoat thickness ratio of from about 6.5:1 to about 20:1. | 11-27-2008 |
20080292488 | METHOD FOR PREPARING A METALLIC ARTICLE HAVING AN OTHER ADDITIVE CONSTITUENT, WITHOUT ANY MELTING - A method for preparing an article of a base metal alloyed with an alloying element includes the steps of preparing a compound mixture by the steps of providing a chemically reducible nonmetallic base-metal precursor compound of a base metal, providing a chemically reducible nonmetallic alloying-element precursor compound of an alloying element, and thereafter mixing the base-metal precursor compound and the alloying-element precursor compound to form a compound mixture. The compound mixture is thereafter reduced to a metallic alloy, without melting the metallic alloy. The step of preparing or the step of chemically reducing includes the step of adding an other additive constituent. The metallic alloy is thereafter consolidated to produce a consolidated metallic article, without melting the metallic alloy and without melting the consolidated metallic article. | 11-27-2008 |
20080292791 | METHODS FOR MAKING REINFORCED REFRACTORY CRUCIBLES FOR MELTING TITANIUM ALLOYS - Methods for making a reinforced refractory crucible for melting titanium alloys including providing a form, applying a facecoat to the form, the facecoat having at least one facecoat layer, applying a backing about the facecoat, the backing having at least one backing layer, applying at least one reinforcing element to at least a portion of the facecoat layer, the backing layer, or a combination thereof where the reinforcing element includes at least one composition selected from ceramic compositions, metallic compositions, and combinations thereof. | 11-27-2008 |
20080292804 | METHODS FOR MAKING REFRACTORY CRUCIBLES FOR MELTING TITANIUM ALLOYS - Methods for making refractory crucibles for melting titanium alloys including providing a form, applying a facecoat to the form, and applying a backing to the facecoat where the facecoat has at least one facecoat layer including an oxide selected from the group consisting of scandium oxide, yttrium oxide, hafnium oxide, a lanthanide series oxide, and combinations thereof and where the backing to the facecoat has a thickness ratio of from about 6.5:1 to about 20:1. | 11-27-2008 |
20090042054 | NB-SI BASED ALLOYS HAVING AN AL-CONTAINING COATING, ARTICLES, AND PROCESSES - Nb—Si based alloy articles comprising a Nb—Si based alloy upon which is disposed an environmentally-resistant coating are described. They include a coating comprising at least one phase selected from the group consisting of M(Al,Si) | 02-12-2009 |
20090126893 | Liquid Metal Directional Casting Process - Processes for directionally casting liquid metal to form an articles can include compressing a seal intermediate a mold chill plate and a mold assembly, wherein the seal circumscribes a shell mold in the mold assembly; filling the shell mold in the mold assembly with molten metal; immersing the mold assembly into a liquid metal cooling bath from a bottom portion to a top portion of the mold assembly; and transmitting heat from the mold assembly to the liquid metal cooling bath to solidify the molten metal from the bottom portion to the top portion of the mold assembly. | 05-21-2009 |
20090133786 | METHOD FOR PRODUCING HOMOGENEOUS FINE GRAIN TITANIUM MATERIALS SUITABLE FOR ULTRASONIC INSPECTION - A titanium material production method for producing homogeneous fine grain titanium material in which the titanium material has a grain size in a range from about 5 μm to about 20 μm. The method comprises providing a titanium material blank; conducting a first heat treatment on the titanium material blank to heat the titanium material blank to a β-range; quenching the titanium material blank from the β-region to the α+β-region; forging the titanium material blank; and conducting a second heat treatment on the titanium material blank. The titanium material production method subjects the titanium material blank to superplasticity conditions during part of the titanium material production method. | 05-28-2009 |
20090139074 | METHODS FOR MAKING REFRACTORY CRUCIBLES CAPABLE OF MANAGING THERMAL STRESS AND SUITABLE FOR MELTING HIGHLY REACTIVE ALLOYS - Methods for making refractory crucibles capable of managing thermal stresses and suitable for melting highly reactive alloys, the method involving providing a crucible having at least a facecoat and a backing, heating at least one retaining ring, applying the at least one retaining ring about at least a portion of the backing of the crucible; and allowing the at least one retaining ring to cool and shrink-fit about the crucible. | 06-04-2009 |
20090140473 | REFRACTORY CRUCIBLES CAPABLE OF MANAGING THERMAL STRESS AND SUITABLE FOR MELTING HIGHLY REACTIVE ALLOYS - Refractory crucibles capable of managing thermal stress and suitable for melting highly reactive alloys having a facecoat, a backing, and at least one retaining ring applied about at least a portion of the backing of the crucible, the retaining ring comprising a composition selected from the group consisting of conductive materials, non-conductive materials, and combinations thereof. | 06-04-2009 |
20090205799 | CASTING MOLDS FOR USE IN A DIRECTIONAL SOLIDIFICATION PROCESS AND METHODS OF MAKING | 08-20-2009 |
20100147803 | PROCESS FOR REMOVING METALLIC MATERIAL FROM CASTED SUBSTATES, AND RELATED COMPOSITIONS - A method for removing a metallic material from the surface of a casted substrate includes the step of contacting the metallic material with an aqueous composition which comprises an acid having the formula H | 06-17-2010 |
20100201469 | SOFT MAGNETIC MATERIAL AND SYSTEMS THEREWITH - A soft magnetic alloy including iron, cobalt, and at least one alloying addition including a platinum group metal, rhenium, or combinations thereof is provided. A device which is formed from such an alloy is also described. | 08-12-2010 |
20100288075 | METHOD FOR PRODUCING A TITANIUM-BASE ALLOY HAVING AN OXIDE DISPERSION THEREIN - A metallic article is prepared by first furnishing at least one nonmetallic precursor compound, wherein all of the nonmetallic precursor compounds collectively containing the constituent elements of the metallic article in their respective constituent-element proportions. The constituent elements together form a titanium-base alloy having a stable-oxide-forming additive element therein, such as magnesium, calcium, scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium, and mixtures thereof. The stable-oxide-forming additive element forms a stable oxide in a titanium-based alloy. At least one additive element is present at a level greater than its room-temperature solid solubility limit in the titanium-base alloy. The precursor compounds are chemically reduced to produce an alloy material, without melting the alloy material. The alloy material may be consolidated. The alloy material, or consolidated metallic article, is thereafter desirably exposed to an oxygen-containing environment at a temperature greater than room temperature. | 11-18-2010 |
20120263619 | METHOD FOR PREPARING A METALLIC ARTICLE HAVING AN OTHER ADDITIVE CONSTITUENT, WITHOUT ANY MELTING - A method for preparing an article of a base metal alloyed with an alloying element includes the steps of preparing a compound mixture by the steps of providing a chemically reducible nonmetallic base-metal precursor compound of a base metal, providing a chemically reducible nonmetallic alloying-element precursor compound of an alloying element, and thereafter mixing the base-metal precursor compound and the alloying-element precursor compound to form a compound mixture. The compound mixture is thereafter reduced to a metallic alloy, without melting the metallic alloy. The step of preparing or the step of chemically reducing includes the step of adding an other additive constituent. The metallic alloy is thereafter consolidated to produce a consolidated metallic article, without melting the metallic alloy and without melting the consolidated metallic article. | 10-18-2012 |