Quotables
"The production of too many useful things results in too many useless people."
Karl Marx
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5173134 | Processing alpha-beta titanium alloys by beta as well as alpha plus beta forging High performance titanium alloys useful as impellers and disks for gas turbine engines are provided, together with processes for their preparation.... | 12/22/1992 |
| 5169460 | Engine valve of titanium alloy There is disclosed an engine valve of titanium alloy having a stem portion made of a cold-worked titanium alloy containing 2% to 4% by weight of aluminum, 1.5% to 3.5% by weight of vanadium and balance titanium. The engine valve suitable for use as an int... | 12/08/1992 |
| 5160554 | Alpha-beta titanium-base alloy and fastener made therefrom An alpha-beta titanium-base alloy, and fastener made therefrom. The alloy has a combination of an ultimate tensile strength of at least 220 ksi with a minimum elongation of 7% in the solution-treated and aged condition. The alloy has a total beta stabiliz... | 11/03/1992 |
| 5141565 | Process for annealing cold working unalloyed titanium In a process for cold forming unalloyed titanium high strength and ductility, in particular high bendability, are obtained if the material is subjected to intermediate annealing at a temperature of up to 500° C.... | 08/25/1992 |
| 5141566 | Process for manufacturing corrosion-resistant seamless titanium alloy tubes and pipes A process for manufacturing seamless titanium alloy tubes or pipes having good corrosion resistance and good mechanical properties from a titanium alloy which consists essentially, by weight, of one or more of the platinum group metals in a total amount o... | 08/25/1992 |
| 5125986 | Process for preparing titanium and titanium alloy having fine acicular microstructure This present invention is characterized in that a titanium material on an or (+ଲ) titanium alloy material hydrogenated in an amount of 0.02 to 2% by weight of hydrogen is heated to a temperature above the ଲ transformation point ... | 06/30/1992 |
| 5092940 | Process for production of titanium and titanium alloy material having fine equiaxial microstructure In the production of titanium and (+ଲ)-type titanium alloy materials, a material hydrogenated in an amount of 0.02 to 2% by weight of hydrogen is worked at a temperature of 450° to 900° C. at a reduction of more than 60%, and the material i... | 03/03/1992 |
| 5082506 | Process of forming niobium and boron containing titanium aluminide A method for providing improved ductility in a castable gamma titanium aluminide is taught. The method involves adding inclusions of boron to the titanium aluminide containing higher concentrations of niobium and thermomechanically working the casting. Bo... | 01/21/1992 |
| 5080727 | Metallic material having ultra-fine grain structure and method for its manufacture A method for producing a metallic material having an ultra-fine microstructure, the metallic material exhibiting a phase transformation of a low-temperature phase into a high-temperature phase is disclosed, the method comprising the steps of: preparing a ... | 01/14/1992 |
| 5076858 | Method of processing titanium aluminum alloys modified by chromium and niobium A method of preparing a TiAl base composition containing niobium and chromium according to the formula Ti48 Al48 Cr2 Nb2 is taught. The composition is melted and cast. It is then homogenized at temperatures up t... | 12/31/1991 |
| 5074923 | Method for id sizing of filament reinforced annular objects A method of controlling the internal dimensions of a filament reinforced ring structure is taught. The method involves providing the ring structure with an internal dimension which is slightly smaller than the specification of the final dimension which is... | 12/24/1991 |
| 5039356 | Method to produce fatigue resistant axisymmetric titanium alloy components An improved process for producing near-alpha and alpha+beta titanium alloy axisymmetric components with high fatigue resistance which comprises the steps of: (a) providing a beta processed near-alpha or alpha+beta titanium alloy component; (b) torque defo... | 08/13/1991 |
| 5026520 | Fine grain titanium forgings and a method for their production Fine grain titanium forgings and to a process for refining the grain size of and -ଲ titanium alloys through forging and recrystallization above the alloy's ଲ-transus temperature. Specifically, the method employs an isothermal pr... | 06/25/1991 |
| 5015305 | High temperature hydrogenation of gamma titanium aluminide A method for refining the microstructure and enhancing the processability of titanium aluminum alloys containing about 45 to 55 atomic percent aluminum which comprises the steps of: (a) rapidly solidifying a titanium aluminum alloy containing about 45 to 55 ... | 05/14/1991 |
| 4952236 | Method of making high strength, low modulus, ductile, biocompatible titanium alloy Method for preparing a high strength, low modulus, ductile, biocompatible titanium base alloy containing one or more isomorphous beta stabilizers, eutectoid beta stabilizers and optional alpha stabilizers, characterized by a modulus of elasticity not exce... | 08/28/1990 |
| 4943326 | Ornament and method of manufacturing the same An ornament is disclosed, which is characterized in that a metallic alloy wire provided with a characteristic to show the superelastic effect at room temperature by making the metallic texture Austenite phase is overlapped on both ends and formed into an ... | 07/24/1990 |
| 4925741 | Getter wire A getter wire is made by wrapping alternate layers of getter metal and refractory metal around an ingot of refractory metal. The composite ingot thus formed is reduced to wire, preferably by extrusion and drawing. The multi layers of refractory and getter... | 05/15/1990 |
| 4923534 | Tungsten-modified titanium aluminum alloys and method of preparation A TiAl composition is prepared to have high strength and to have improved ductility by altering the atomic ratio of the titanium and aluminum to have what has been found to be a highly desirable effective aluminum concentration by addition of tungsten and... | 05/08/1990 |
| 4902355 | Method of and a spray for manufacturing a titanium alloy A method of manufacturing a titanium alloy, wherein a melted and possibly preformed part is annealed to set the starting grain structure, wherewith a first grain structure transformation is accomplished by a first cooling step, whereafter high dislocation... | 02/20/1990 |
| 4830683 | Apparatus for forming variable strength materials through rapid deformation and methods for use therein The invention relates to apparatus and accompanying methods for use therein for forming a material (504), which has high strength and good workability, by rapidly deforming a suitable base metal (501) having a banded structure, such as illustratively a pr... | 05/16/1989 |
| 4802930 | Air-annealing method for the production of seamless titanium alloy tubing A process for the production of seamless titanium alloy tubing is disclosed in which solution annealing for all intermediate operations are performed in an air atmosphere furnace, followed either by water or room temperature air quench in order to achieve... | 02/07/1989 |
| 4726852 | Method of producing bowl-like metal article The invention relates to a method of producing a bowl-like metal article, e.g. a half of a spherical rocket motor case made of a titanium alloy, by first shaping a flat blank into a bowl-like shape by a press forming operation and subsequently making heat... | 02/23/1988 |
| 4680063 | Method for refining microstructures of titanium ingot metallurgy articles The microstructure of forged titanium alloy components is improved by beta-transus heat treating the components, hydrogenating the components at an elevated temperature, cooling the thus-hydrogenated components to room temperature, dehydrogenating the com... | 07/14/1987 |
| 4675964 | Titanium engine valve and method of making A method is disclosed for making a dual microstructure titanium based engine valve, wherein a first zone of the valve contains essentially a mixture of fine, equiaxed alpha and transformed beta crystalline grains which exhibit high tensile strength and hi... | 06/30/1987 |
| 4675055 | Method of producing Ti alloy plates A method for producing Ti alloy plates, comprising heating an +ଲ Ti alloy ingot to a temperature within the +ଲ two phase range, forging or rolling said heated alloy ingot to reduce it more than 30% whereby strain energy accumulat... | 06/23/1987 |
| 4624714 | Microstructural refinement of cast metal A method of refining the microstructure of metals which undergo a phase transformation at high temperatures by diffusing a solute material into the metal at a temperature below the normal transformation temperature. The solute induces the phase transforma... | 11/25/1986 |
| 4581077 | Method of manufacturing rolled titanium alloy sheets A method of manufacturing a rolled titanium alloy sheet comprises breaking down an or +ଲ titanium alloy ingot into a slab, working the slab in sequential stages of (A) cross rolling the slab in the +ଲ region under a condition ... | 04/08/1986 |
| 4505764 | Microstructural refinement of cast titanium The microstructure of titanium is refined by inducing a high temperature transformation from +ଲ to ଲ and back to +ଲ by diffusing hydrogen into and then out of the metal while maintaining the metal above the temperature of h... | 03/19/1985 |
| 3969155 | Production of tapered titanium alloy tube Production of tapered titanium alloy tube performed by subjecting uniformly dimensioned tube to multiple swaging steps interspersed with vacuum annealing, heat hardening in the presence of atmospheric gases producing high yield strength in the final produ... | 07/13/1976 |
