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1. 发明授权

US06638336B1 Manufacture of cost-effective titanium powder from magnesium reduced sponge 失效
公开(公告)号：US06638336B1
公开(公告)日：2003-10-28
申请号：US10145532
申请日：2002-05-13
申请人： Victor A. Drozdenko , Anatoli M. Petrunko , Anatoli E. Andreev , Oleksiy P. Yatsenko , Orest M. Ivasishin , Dmitro G. Savvakin , Vladimir S. Moxson , Francis H. Froes
发明人： Victor A. Drozdenko , Anatoli M. Petrunko , Anatoli E. Andreev , Oleksiy P. Yatsenko , Orest M. Ivasishin , Dmitro G. Savvakin , Vladimir S. Moxson , Francis H. Froes
IPC分类号： B22F904
CPC分类号： C22B34/1295 , B22F2998/10 , C22B34/1272 , C22C1/0416 , C22B34/12 , B22F9/04 , B22F1/0088
摘要： The cost-effective titanium powder is manufactured by (a) magnesium-thermic reduction of titanium chlorides characterized by the formation of a hollow block of the reaction mass having an open cavity in the center of the block, (b) thermal-vacuum separation of the hollow block from excessive Mg and MgCl2 at 850-950° C. and residual pressure of 10−2-10−3 mm Hg, (c) cooling of obtained titanium hollow block in a H2-contained atmosphere at an excessive hydrogen pressure, (d) crushing the hydrogenated titanium block, (e) grinding the crushed titanium pieces into the powder combined with a hydro-metallurgical treatment of obtained titanium powder in a diluted aqueous solution of at least one chloride selected from magnesium chloride, sodium chloride, potassium chloride, or titanium chloride, and (f) drying and, optionally dehydrating the titanium powder ground to a predetermined particle size. The formation of the hollow block of the reaction mass with the open cavity in the center of the block is carried out by accelerating the reaction mass on the inside surface of the reactor. The hydro-metallurgical treatment of titanium powder is carried out in the solutions having the total content of chlorides of 0.5-10 wt. %, at the powder-to-solution weight ratio from 1:1 to 1:4. The cooling of the titanium hollow block in the hydrogen-contained atmosphere is carried out to the temperature of 550-450° C. at the excessive hydrogen pressure of 0.2 bar or higher. The productivity of the innovative process is higher, the energy consumption is lessened more than double, the duration of the processing cycle is decreased by 3. The shorter time of high-temperature stages results in significant improvement of titanium powder quality because it prevents the oxidation and nitrogenation of the metal. The powder dispersion is increased caused by porous and poorly sintered structure of the reaction mass. Cooling the block in the presence of hydrogen also increases the powder quality and the yield of fine powder fractions during the hydro-metallurgical treatment.

2. 发明授权

US06451279B1 Process for making carbides through mechanochemical processing 失效
公开(公告)号：US06451279B1
公开(公告)日：2002-09-17
申请号：US09510835
申请日：2000-02-23
申请人： Francis H. Froes , Baburaj G. Eranezhuth
发明人： Francis H. Froes , Baburaj G. Eranezhuth
IPC分类号： C01B3130
CPC分类号： C01B32/921 , C01B32/907 , C01B32/914 , C01P2002/72 , C01P2002/80 , C01P2004/04
摘要： Forming metal and metalloid carbides by mechanically inducing a reduction reaction between a metal chloride (or a metalloid chloride) and a metal carbide. The reduction reactions are induced mechanically by milling the reactants. Alloy carbides may also be produced by mechanically inducing the co-reduction of metal chlorides or metalloid chlorides and a metal carbide according to the equation: M1chloride+M2chloride+M3carbide→M1M2carbide, where M1 is a metal or metalloid, M2 is a metal or metalloid and M3 is a suitable carbide reducing agent.

3. 发明授权

US5922460A Composite materials 失效
标题翻译：复合材料
公开(公告)号：US5922460A
公开(公告)日：1999-07-13
申请号：US776668
申请日：1997-05-21
申请人： Charles M. Ward-Close , Francis H. Froes , Deepak Upadhyaya , Panos Tsakiropoulos
发明人： Charles M. Ward-Close , Francis H. Froes , Deepak Upadhyaya , Panos Tsakiropoulos
IPC分类号： C22C49/00 , C23C14/06 , C23C14/18 , B32B9/00 , B32B15/14 , C22C1/09
CPC分类号： C23C14/067 , C22C49/00 , C23C14/18 , Y10T428/12424 , Y10T428/12438 , Y10T428/2916 , Y10T428/2918 , Y10T428/292 , Y10T428/2929 , Y10T428/2931 , Y10T428/294 , Y10T428/2955 , Y10T428/2956 , Y10T428/2958 , Y10T428/2973
摘要： A metal matrix composite material made of a fiber reinforcement having a coating of gadolinium and gadolinium boride, preferably as discrete layers, each having a thickness of 1 to 6 microns. This composite is made by coating reinforcing fibers with gadolinium using a deposition technique, further coating the fibers with gadolinium boride by a deposition technique and then consolidating the coated fibers into a metal matrix to form the metal matrix composite.
摘要翻译： PCT No.PCT / GB95 / 01849 Sec。 371日期1997年5月21日 102（e）日期1997年5月21日PCT提交1995年8月1日PCT公布。出版物WO96 / 04408 日期1996年2月15日由具有钆和钆硼化物的纤维增强材料制成的金属基复合材料，优选为分立层，每层厚度为1至6微米。该复合材料通过使用沉积技术用钆掺杂增强纤维制成，通过沉积技术进一步用钆硼化物涂覆纤维，然后将涂覆的纤维固结成金属基质以形成金属基质复合材料。

4. 依法登记的发明

USH887H Dispersion strengthened tri-titanium aluminum alloy 失效
标题翻译：分散强化三钛铝合金
公开(公告)号：USH887H
公开(公告)日：1991-02-05
申请号：US476074
申请日：1990-02-07
申请人： Ganapathy Venkataraman , Francis H. Froes
发明人： Ganapathy Venkataraman , Francis H. Froes
IPC分类号： C22C14/00
CPC分类号： C22C14/00
摘要： A titanium alloy comprising about 15 to 25 atomic percent (a/o) aluminum, about 0.05 to 12 a/o of at least one beta eutectoid stabilizing element and about 4 to 12 a/o of at least one beta isomorphous stabilizing element, balance titanium. The beta eutectoid element is at least one of Cu, Ni, Cr, Er, Y, Ce, Si, B or C. The beta isomorphous stabilizing element is Nb or a mixture of Nb with Ta, Mo or V, wherein the Nb can be replaced by Ta, Mo or V up to about half of the stated quantity.The presently preferred amounts of the beta eutectoid stabilizing elements are as follows: Cu, Ni or Cr, about 4.50 to 12.0 a/o; Si, B or C, about 0.70 to 5.0 a/o; Er, Y or Ce, about 0.05 to 0.25 a/o.

5. 发明授权

US4828793A Method to produce titanium alloy articles with high fatigue and fracture resistance 失效
$Method to produce titanium alloy articles with high fatigue and fracture resistance$
标题翻译：生产具有高疲劳和抗断裂性的钛合金制品的方法
公开(公告)号：US4828793A
公开(公告)日：1989-05-09
申请号：US198804
申请日：1988-05-06
申请人： Francis H. Froes , Daniel Eylon
发明人： Francis H. Froes , Daniel Eylon
IPC分类号： B22F7/06
CPC分类号： B22F7/06
摘要： 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 a second titanium alloy in powder form into a second portion of the mold; and(d) hot compacting the first and second alloys in the mold to produce a substantially fully dense article.The second alloy may be the hydrided version of the first alloy, or may have a different overall composition from the first alloy, or may be hydrided and have a different overall composition from the first alloy.
摘要翻译：一种用于生产具有至少两个区域的整体钛合金制品的方法，每个区域具有不同的微结构，其包括以下步骤：（a）为所述制品提供合适的模具; （b）将第一钛合金引入模具的第一部分; （c）将粉末形式的第二钛合金引入模具的第二部分; 和（d）在模具中热压第一和第二合金以产生基本上完全致密的制品。第二合金可以是第一合金的氢化形式，或者可以具有与第一合金不同的总体组成，或者可以是水合的并且具有与第一合金不同的总体组成。

6. 发明授权

US4820360A Method for developing ultrafine microstructures in titanium alloy castings 失效
标题翻译：在钛合金铸件中开发超细微结构的方法
公开(公告)号：US4820360A
公开(公告)日：1989-04-11
申请号：US128839
申请日：1987-12-04
申请人： Daniel Eylon , Francis H. Froes , Charles F. Yolton
发明人： Daniel Eylon , Francis H. Froes , Charles F. Yolton
IPC分类号： C22F1/18
CPC分类号： C22F1/183
摘要： 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 0.50 to 1.50 weight percent, cooling the thus-hydrogenated article to room temperature at a controlled rate, heating the thus-cooled, hydrogenated article to a temperature of about 650.degree. to 750.degree. C., applying a vacuum to dehydrogenate the article, and cooling the thus-dehydrogenated article at a controlled rate.
摘要翻译：一种改进铸钛合金制品微观结构的方法，其特征在于包括以下步骤：将铸造制品在接近或高于815℃（约780℃至1020℃）的钛 - 氢共析物温度下氢化至氢水平为约0.50至1.50重量％，以受控的速率将如此氢化的制品冷却至室温，将如此冷却的氢化制品加热至约650℃至750℃的温度，施加真空以使制品，并以受控的速率冷却如此脱氢的制品。

7. 发明授权

US4807798A Method to produce metal matrix composite articles from lean metastable beta titanium alloys 失效
标题翻译：从贫亚稳β钛合金制备金属基复合材料制品的方法
公开(公告)号：US4807798A
公开(公告)日：1989-02-28
申请号：US935362
申请日：1986-11-26
申请人： Daniel Eylon , Francis H. Froes
发明人： Daniel Eylon , Francis H. Froes
IPC分类号： C22C47/20 , C22C49/11 , B23K20/22 , B23K31/00
CPC分类号： C22C49/11 , C22C47/20
摘要： 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 alloy, fabricating a preform consisting of alternating layers of the rapidly-solidified foil and the filamentary material, and applying heat and pressure to consolidate the preform, wherein consolidation is carried out at a temperature below the beta-transus temperature of the alloy.
摘要翻译：一种用于制造由至少一种高强度/高刚性长丝或嵌入在α-β钛合金基质中的纤维组成的改进的钛合金复合材料的方法，该方法包括以下步骤：提供由亚稳态β钛合金制成的快速固化的箔制造由快速固化的箔和丝状材料的交替层组成的预成型体，并施加热和压力以固结预成型件，其中在低于合金的β-转变温度的温度下进行固结。

8. 发明授权

US4733816A Method to produce metal matrix composite articles from alpha-beta titanium alloys 失效
标题翻译：从α-β钛合金制备金属基复合材料的方法
公开(公告)号：US4733816A
公开(公告)日：1988-03-29
申请号：US936679
申请日：1986-12-11
申请人： Daniel Eylon , Francis H. Froes
发明人： Daniel Eylon , Francis H. Froes
IPC分类号： C22C47/20 , B23K20/00 , B23K31/00
CPC分类号： C22C47/20
摘要： 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, fabricating a preform consisting of alternating layers of the rapidly-solidified foil and the filamentary material, and applying heat and pressure to consolidate the preform, wherein consolidation is carried out at a temperature below the beta-transus temperature of the alloy.
摘要翻译：一种制造由至少一种高强度/高刚性长丝或嵌入在α-β钛合金基质中的纤维组成的改进的钛合金复合材料的方法，其包括以下步骤：提供由α-β钛合金制成的快速固化箔制造由快速固化的箔和丝状材料的交替层组成的预成型体，并施加热和压力以固结预成型件，其中在低于合金的β-转变温度的温度下进行固结。

9. 发明授权

US4499156A Titanium metal-matrix composites 失效
标题翻译：钛金属基复合材料
公开(公告)号：US4499156A
公开(公告)日：1985-02-12
申请号：US477793
申请日：1983-03-22
申请人： Paul R. Smith , Francis H. Froes
发明人： Paul R. Smith , Francis H. Froes
IPC分类号： C22C47/20 , C22C49/11 , C22C32/00 , C22F1/18
CPC分类号： C22C49/11 , C22C47/20 , Y10T428/12486
摘要： Titanium alloy composites having substantially reduced reaction zones are provided which comprise a high strength/high stiffness filament such as silicon carbide, silicon carbide-coated boron, boron carbide-coated boron and silicon-coated silicon carbide, embedded in a fine-grained titanium alloy containing at least 40 percent beta phase, less than 7 percent Al and having a beta-transus temperature below 1750.degree. F. (955.degree. C.).Also provided is a method for fabricating titanium composites which comprises mechanically working a desired titanium alloy to obtain sheetstock in a desired thickness and having a relatively fine grain size, laying up a preform and consolidating the preform under increased temperature and pressure, wherein consolidation is carried out at a temperature below the beta-transus temperature of the alloy, thereby reducing the amount of reaction zone between the filament and the alloy matrix.
摘要翻译：提供了具有显着降低的反应区的钛合金复合材料，其包括高强度/高刚度的丝，例如碳化硅，碳化硅涂覆的硼，碳化硼涂覆的硼和涂有硅的碳化硅，嵌入细粒钛合金含有至少40％的β相，小于7％的Al，β转变温度低于1750°F（955℃）。还提供了一种用于制造钛复合材料的方法，其包括机械加工所需的钛合金以获得所需厚度的片材并且具有相对较细的晶粒度，铺设预成型件并在增加的温度和压力下固化预成型件，其中固结在低于合金的β-转变温度的温度下，从而减少丝与合金基体之间的反应区的量。

10. 发明授权

US06231636B1 Mechanochemical processing for metals and metal alloys 失效
标题翻译：金属和金属合金的机械化学加工
公开(公告)号：US06231636B1
公开(公告)日：2001-05-15
申请号：US09245610
申请日：1999-02-03
申请人： Francis H. Froes , Baburaj G. Eranezhuth , Keith Prisbrey
发明人： Francis H. Froes , Baburaj G. Eranezhuth , Keith Prisbrey
IPC分类号： B22F904
CPC分类号： B22F9/20 , B22F2009/041 , B22F2999/00 , C22B34/1286 , Y10S977/777 , Y10S977/81 , Y10S977/835 , B22F9/04
摘要： A set of processes for preparing metal powders, including metal alloy powders, by ambient temperature reduction of a reducible metal compound by a reactive metal or metal hydride through mechanochemical processing. The reduction process includes milling reactants to induce and complete the reduction reaction. The preferred reducing agents include magnesium and calcium hydride powders. A process of pre-milling magnesium as a reducing agent to increase the activity of the magnesium has been established as one part of the invention.
摘要翻译：通过机械化学处理通过活性金属或金属氢化物环境还原可还原金属化合物来制备金属粉末的方法，包括金属合金粉末。还原过程包括研磨反应物以诱导和完成还原反应。优选的还原剂包括镁和氢化钙粉末。作为本发明的一部分，建立了镁作为还原剂预研磨以提高镁的活性的方法。

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