Abstract:
PROBLEM TO BE SOLVED: To provide an article having a titanium-base metallic composition, which is, in more detail, the article made from the titanium-base composition wherein titanium boride particles are dispersed. SOLUTION: The article (20) has a matrix (22) containing more titanium than any other elements, and contains a microscale compound material (21) having the matrix (22) wherein the titanium boride particles (24, 25) are dispersed. The maximum size of at least approximately 50 volume% of the titanium boride particles (24, 25) is smaller than approximately 2 μm. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method for fabricating a metallic article without any melting.SOLUTION: A metallic article (20) made of metallic constituent elements is fabricated from a mixture of nonmetallic precursor compounds of the metallic constituent elements. The mixture of nonmetallic precursor compounds is chemically reduced to produce an initial metallic material, without melting the initial metallic material. A consolidation process may be performed by a viable technology. A preferable technology includes hot isostatic press, forging, pressure forming and sintering, and container extrusion of the initial metallic material. The material is consolidated to produce the consolidated metallic article (20). The consolidation is preferably performed by hot isostatic press, forging, pressure forming and sintering, and container extrusion of the initial metallic material.
Abstract:
PROBLEM TO BE SOLVED: To provide a method of depositing a coating in a selected range of a turbine component. SOLUTION: This method of assembling a vane sector 50 for a gas turbine engine 10 including an aerofoil vane 52 and a platform 50 includes: a step 102 of depositing abrasion coating material 110 on a selected zone 114 of the platform; a step 104 of disposing the platform adjacent to the aerofoil vane; and a step 106 of performing soldering to permanently couple the aerofoil vane to the platform part and join the abrasion coating material over a predetermined zone 118 of the platform. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide articles having titanium-base metallic compositions and, more particularly, articles made of titanium-base compositions having titanium boride particles dispersed therein.SOLUTION: An article (20) includes a microscale composite material (21) having a matrix (22) with more titanium than any other element, and a dispersion of titanium boride particles (24, 25) in the matrix (22). At least about 50 vol.% of the titanium boride particles (24, 25) have a maximum dimension of less than about 2 μm.
Abstract:
PROBLEM TO BE SOLVED: To prepare a metallic alloy article having other additive constituents without any melting. SOLUTION: The method for preparing an article (20) of a base metal alloyed with an alloying element comprises 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 (20), without melting the metallic alloy and without melting the consolidated metallic article (20). COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To prepare a metallic-alloy article having another additive constituent, without melting of the metallic alloy.SOLUTION: A method for preparing an article (20) 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 chemically reducing includes the step of adding another additive constituent. The metallic alloy is thereafter consolidated to produce a consolidated metallic article (20), without melting the metallic alloy and without melting the consolidated metallic article (20).
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a titanium metallic composition having titanium boride particles dispersed therein. SOLUTION: An article made of constituent elements is prepared by furnishing at least one nonmetallic precursor compound, wherein all of the nonmetallic precursor compounds collectively contain the constituent elements. The constituent elements include a titanium-base metallic composition, boron present at a level greater than its room-temperature solid solubility limit, and, optionally, a stable-oxide-forming additive element present at a level greater than its room-temperature solid solubility limit. The precursor compounds are chemically reduced to produce a material comprising a titanium-base metallic composition having titanium boride particles therein, without melting the titanium-base metallic composition. The titanium-base metallic composition having the titanium boride particles therein is consolidated without melting. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an electroslag-cold hearth (ESCH) system for refining or producing a desired metal or metal alloy. SOLUTION: The system includes at least one cold hearth vessel (35) capable of holding a pool (44) of molten liquid metal and an overlying slag layer (40), and an ingot mold (36) laterally off-set from the cold hearth (35). A source of raw material, e.g., a feed electrode (34), is positioned above the cold hearth (35), and fed into the molten slag (40) in a refining operation. A flow-over dam (54) separates the ingot mold (36) from the cold hearth (35), preventing the flow of inclusions and other foreign bodies into the ingot mold. In some instances, a non-consumable electrode provides additional thermal energy to the slag. In the production operation, the metal source can be a salt from which the desired metal can be electrochemically extracted. Related methods for refining or producing metals such as titanium alloys are also described. COPYRIGHT: (C)2005,JPO&NCIPI