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Inventor:
Froes; Francis H.
Address:
Xenia, OH
No. of patents:
29
Patents:












Patent Number Title Of Patent Date Issued
5024369 Method to produce superplastically formed titanium alloy components June 18, 1991
Processes for producing titanium alloy SPF/DB components, particularly structural panels, are provided.In one embodiment, the process comprises providing rapidly solidified titanium alloy sheetstock, providing a plurality of rapidly solidified titanium alloy ribbons or strips, forming th
4931253 Method for producing alpha titanium alloy pm articles June 5, 1990
A method for producing a titanium alloy powder metallurgy article having high resistance to loading and creep at high temperature is described and comprises the steps of simultaneously pressing a preselected quantity of titanium alloy powder at from 15 to 60 ksi and heating the powder to
4919886 Titanium alloys of the Ti.sub.3 Al type April 24, 1990
A titanium alloy comprising about 20 to 30 atomic percent (a/o) aluminum, about 3 to 5 a/o niobium, about 3 to 5 a/o vanadium, and about 3 to 5 a/o molybdenum, balance titanium. The alloy can be dispersion strengthened by the addition of small amounts, i.e. up to about 1 a/o of sulfur or
4917858 Method for producing titanium aluminide foil April 17, 1990
A method for producing foil of titanium aluminide is described which comprises providing a preselected quantity of blended powder of chloride free commercially pure elemental titanium, aluminum and other alloying metal(s) in preselected proportions, rolling the blended powder into a
4893743 Method to produce superplastically formed titanium aluminide components January 16, 1990
Processes for producing titanium aluminide SPF/DB components, particularly structural panels, are provided. In one embodiment, the process comprises providing rapidly solidified titanium aluminide alloy sheetstock, providing a plurality of rapidly solidified titanium aluminide alloy
4872927 Method for improving the microstructure of titanium alloy wrought products October 10, 1989
A method for improving the microstructure of wrought titanium alloy material which comprises the steps of hydrogenating the material at a temperature near or above the titanium-hydrogen eutectoid of 815.degree. C. (about 780.degree. to 1020.degree. C.) to a hydrogen level of about 0.
4851193 High temperature aluminum-base alloy July 25, 1989
An improved alloy consisting essentially of about 6 to 10 weight percent Fe, about 2 to 10 weight percent Gd, balance Al. The alloy may also contain minor amounts of one or more refractory metals.
4851055 Method of making titanium alloy articles having distinct microstructural regions corresponding t July 25, 1989
A method for producing an integral titanium alloy article having at least two regions, each region having a distinct microstructure is provided. The method comprises heat treating one or more selected region(s) of the article at a temperature greater than the beta-transus temperature of
4851053 Method to produce dispersion strengthened titanium alloy articles with high creep resistance July 25, 1989
A method to produce titanium alloy articles having high creep resistance which comprises the steps of:(a) providing a titanium alloy material containing at least one dispersoid forming alloy addition:(b) hydrogenating the alloy material to a level of about 0.1 to 4.0 weight percent hydro
4832760 Method for refining microstructures of prealloyed titanium powder compacts May 23, 1989
A method for improving the microstructure of prealloyed titanium alloy compacted articles which comprises the steps of hydrogenating the article at a temperature of about 780.degree. to 1020.degree. C. to a hydrogen level of about 0.50 to 1.50 weight percent, cooling the thus-hydrogenate
4828793 Method to produce titanium alloy articles with high fatigue and fracture resistance May 9, 1989
A method for producing an integral titanium alloy article having at least o regions, each region having a distinct microstructure, which comprises the steps of(a) providing a suitable mold for the article;(b) introducing a first titanium alloy into a first portion of the mold;(c) introducing
4822432 Method to produce titanium metal matrix coposites with improved fracture and creep resistance April 18, 1989
A method for improving the microstructure of consolidated titanium alloy metal matrix composites which comprises the steps of(a) heating the composite to a temperature in the range of 800.degree. to 2000.degree. F., the temperature being below the temperature at which interfacial reactio
4820360 Method for developing ultrafine microstructures in titanium alloy castings April 11, 1989
A method for improving the microstructure of cast titanium alloy articles which comprises the steps of hydrogenating the cast article at a temperature near or above the titanium-hydrogen eutectoid of 815.degree. C. (of about 780.degree. to 1020.degree. C.) to a hydrogen level of about
4809903 Method to produce metal matrix composite articles from rich metastable-beta titanium alloys March 7, 1989
A method for fabricating an improved titanium alloy composite consisting of at least one high strength/high stiffness filament or fiber embedded in an alpha-beta titanium alloy matrix which comprises the steps of providing a rapidly-solidified foil made of a rich metastable beta titanium
4808250 Method for refining microstructures of blended elemental titanium powder compacts February 28, 1989
A method for improving the microstructure of blended elemental titanium alloy compacted articles which comprises the steps of hydrogenating the article at a temperature of about 780.degree. to 1020.degree. C. to a hydrogen level of about 0.50 to 1.50 weight percent, cooling the thus-
4808249 Method for making an integral titanium alloy article having at least two distinct microstructura February 28, 1989
A method for producing an integral titanium alloy article having at least two regions, each region having a distinct microstructure is provided. The method comprises heat treating one or more selected region(s) of the article at a temperature greater than the beta-transus temperature of
4807798 Method to produce metal matrix composite articles from lean metastable beta titanium alloys February 28, 1989
A method for fabricating an improved titanium alloy composite consisting of at least one high strength/high stiffness filament or fiber embedded in an alpha-beta titanium alloy matrix which comprises the steps of providing a rapidly-solidified foil made of a lean metastable beta titanium
4787943 Dispersion strengthened aluminum-base alloy November 29, 1988
An aluminum alloy containing about 2 to 6 weight percent titanium, about 3 to 11 weight percent of a rare earth of the Lanthanide Series and up to about 3 weight percent of at least one Group VIII metal, balance aluminum, is disclosed. The alloy is preferably prepared by rapid solidifica
4770850 Magnesium-calcium-nickel/copper alloys and articles September 13, 1988
A novel magnesium alloy consisting essentially of about 6 to 14 weight percent calcium, about 4 to 8 weight percent of copper or nickel, balance magnesium.There is also provided a process for producing a magnesium alloy article having improved properties which comprises the steps of prov
4746374 Method of producing titanium aluminide metal matrix composite articles May 24, 1988
A method for fabricating an improved titanium alloy composite consisting of at least one high strength/high stiffness filament or fiber embedded in a titanium-aluminum base alloy matrix which comprises the steps of providing a rapidly-solidified foil made of the titanium-aluminum base al
4733816 Method to produce metal matrix composite articles from alpha-beta titanium alloys March 29, 1988
A method for fabricating an improved titanium alloy composite consisting of at least one high strength/high stiffness filament or fiber embedded in an alpha-beta titanium alloy matrix which comprises the steps of providing a rapidly-solidified foil made of an alpha-beta titanium alloy, f
4714587 Method for producing very fine microstructures in titanium alloy powder compacts December 22, 1987
A process for producing titanium alloy articles by Hot Isostatic Pressing of a rapidly-solidified titanium alloy powder is provided wherein such pressing is carried out at a pressure greater than 30 ksi, and a temperature of about 60 to 80 percent of the beta-transus temperature of t
4680063 Method for refining microstructures of titanium ingot metallurgy articles July 14, 1987
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 components at an elevated temperatur
4655855 Method for refining microstructures of prealloyed titanium powder compacted articles April 7, 1987
The microstructure of titanium alloy powder compacts is refined and improved by a method which comprises beta solution heat treating the compact, hydrogenating and then dehydrogenating the compact.
4548903 Method to reveal microstructures in single phase alloys October 22, 1985
A method for revealing the microstructure of metal alloys which comprises the steps of polishing the sample, chemically etching the polished metal surface, thermally etching the chemically etched surface and quenching the thermally etched sample. This method allows observation of deforme
4536234 Method for refining microstructures of blended elemental powder metallurgy titanium articles August 20, 1985
A method for improving the microstructure of an article made by powder metallurgy of blended elemental titanium powder which comprises beta-solution heat treating the article at a temperature approximately equal to the beta-transus of the equivalent alloy, rapidly cooling the article
4534938 Method for making alloy additions to base metals having higher melting points August 13, 1985
A method for adding alloying elements having relatively low boiling points to base metal shaving relatively high melting points. The base metal is combined with the melting point-lowering metal; or metalloid and to this mixture is added the desired alloying metal or metals. No special
4534808 Method for refining microstructures of prealloyed powder metallurgy titanium articles August 13, 1985
A method for improving the microstructure of an article made by powder metallurgy of prealloyed titanium powder which comprises beta-solution heat treating the article at a temperature approximately equal to the beta-transus of the equivalent alloy, rapidly cooling the article, annea
4482398 Method for refining microstructures of cast titanium articles November 13, 1984
The microstructure of titanium alloy castings is improved by a process which comprises beta-solution heat treating the cast article at or near the beta-transus temperature of the alloy, cooling the article to room temperature at a rate in excess of air cooling and aging the article at a










 
 
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