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公开(公告)号：US5480468A
公开(公告)日：1996-01-02
申请号：US265891
申请日：1994-06-27
CPC分类号： B22F3/14 , C22C19/03 , Y10T428/12431
摘要： Ni-base alloy foils are made directly from Ni-base alloy powders by hot pressing. These Ni-base alloy foils are characterized by having a thickness of 0.017 in. or less, and by the fact that they are fine-grained and substantially free of oxygen, nitrogen and deformation-induced defects. The as-pressed Ni-base foils are generally ductile and adapted for subsequent forming operations, including cold rolling. The reduction in thickness imparted in a single pass to a Ni-base alloy foil through cold-rolling ranged from 4-10% depending on the alloy composition. The total reduction in thickness ranged from about 10-50% based upon a plurality of such passes. For reductions in thickness greater than about 10%, annealing is employed for stress relief.
摘要翻译： Ni基合金箔通过热压直接由Ni基合金粉末制成。 这些Ni基合金箔的特征在于其厚度为0.017英寸或更小，并且由于它们是细粒度的并且基本上没有氧，氮和变形引起的缺陷。 压制的镍基箔通常是延展性的，适用于随后的成型操作，包括冷轧。 根据合金组成，通过冷轧在单次通过Ni基合金箔中的厚度减少范围为4-10％。 基于多次这种通过，厚度的总减少范围为约10-50％。 为了减小厚度大于约10％，采用退火来减轻应力。
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公开(公告)号：US5571304A
公开(公告)日：1996-11-05
申请号：US265892
申请日：1994-06-27
CPC分类号： C22F1/10 , C22C32/0026
摘要： Oxide dispersion strengthened (ODS) Ni-base alloy foils are made directly from powders of these alloys by hot pressing. These ODS Ni-base alloy foils are characterized by having a thickness of 0.017 in. or less, and by the fact that they are fine-grained and substantially free of nitrogen and deformation induced defects. The as-pressed ODS Ni-base alloy foils are adapted for subsequent forming operations, including cold rolling. The reduction in thickness imparted in a single pass to an Ni-base alloy foil through cold-rolling was about 8%. The total reduction in thickness was about 55% based upon a plurality of such passes. For reductions in thickness greater than 20%, annealing is employed for stress relief.
摘要翻译： 氧化物分散强化（ODS）Ni基合金箔直接由这些合金的粉末通过热压制成。 这些ODS Ni基合金箔的特征在于厚度为0.017英寸以下，并且由于它们是细粒度的并且基本上没有氮气和变形引起的缺陷。 压制的ODS Ni基合金箔适用于随后的成型操作，包括冷轧。 通过冷轧向Ni基合金箔单次传递的厚度减少约为8％。 基于多次这种通过，厚度的总减少约为55％。 为了减小厚度大于20％，采用退火应力消除。
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公开(公告)号：US5498146A
公开(公告)日：1996-03-12
申请号：US223347
申请日：1994-04-05
CPC分类号： B30B11/001 , B22F3/1258
摘要： An apparatus for use in hot pressing metal alloy foils, such as by HIP, directly from metal alloy powders. The invention is a metal container with a cavity having near-net shape of a thin metal foil. The cavity may be lined with a diffusion inhibiting material, so as to inhibit the interdiffusion between the metal container and the metal alloy powder during hot pressing. The apparatus also may include an integrally formed orifice for evacuating the metal container.
摘要翻译： 一种用于热压金属合金箔的装置，例如通过HIP直接由金属合金粉末。 本发明是具有薄金属箔的近净形状的空腔的金属容器。 空腔可以衬有扩散抑制材料，以便在热压期间抑制金属容器和金属合金粉末之间的相互扩散。 该设备还可以包括用于抽空金属容器的整体形成的孔口。
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公开(公告)号：US5427736A
公开(公告)日：1995-06-27
申请号：US223345
申请日：1994-04-05
摘要： A method for making metal alloy foils directly from metal alloy powder is described. The metal alloy foils are formed by the use of a combination of a means for heating and a means for pressing, such as a hot isostatic press, to densify a metal alloy powder so as to directly form a metal alloy foil. The metal alloy powder is contained within an apparatus which has a near-net shape of a foil, such that the application of heat and pressure will consolidate the metal powder and form the metal alloy foil. This method may be used to make metal foils out of a wide variety of metal alloys, particularly high temperature alloys, such as Ti-base, Ni-base, and B-base and Al-Si alloys. After the step with heating and pressing, the metal alloy foil is removed from the apparatus which is used to contain it, such as by the use of chemical etching or milling. The method also comprises subsequent thermal or mechanical processing of the metal alloy foil in order to improve its properties, such as the use of cold-rolling to enhance the uniformity of the metal alloy foil thickness and/or alter the mechanical properties of the foil.
摘要翻译： 描述了直接由金属合金粉末制造金属合金箔的方法。 金属合金箔通过使用加热装置和诸如热等静压机之类的压制装置的组合来形成，以使金属合金粉末致密化，以便直接形成金属合金箔。 金属合金粉末被包含在具有箔的近净形状的装置中，使得施加的热和压力将固结金属粉末并形成金属合金箔。 该方法可用于从各种各样的金属合金，特别是诸如Ti基，Ni基和B基和Al-Si合金的高温合金中制造金属箔。 在加热和加压步骤之后，例如通过使用化学蚀刻或研磨，将金属合金箔从用于容纳它的设备中去除。 该方法还包括随后对金属合金箔的热或机械加工以改进其性能，例如使用冷轧来提高金属合金箔厚度的均匀性和/或改变箔的机械性能。
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公开(公告)号：US5597967A
公开(公告)日：1997-01-28
申请号：US265890
申请日：1994-06-27
申请人： Ann M. Ritter , Melvin R. Jackson , John R. Hughes
发明人： Ann M. Ritter , Melvin R. Jackson , John R. Hughes
CPC分类号： B22F5/00 , C22C1/0416 , C22F1/043
摘要： Two-phase Al--Si alloy foils are made directly from Al--Si alloy powders by hot pressing. These Al--Si alloy foils are characterized by having a thickness of 0.017 in. or less, and by the fact that they are fine-grained and substantially free of oxygen, nitrogen and deformation-induced defects. The as-pressed Al--Si foils where the primary phase is the Al solid-solution phase are also generally ductile and adapted for subsequent forming operations, including cold rolling. The reduction in thickness imparted in a single pass to an Al-11.6Si alloy foil through cold-rolling was at least about 10%, with up to about 90% reduction in thickness accomplished by a plurality of such passes. These reductions in thickness were accomplished without stress relief annealing, but such annealing may be employed if desirable for microstructural modification.
摘要翻译： 通过热压直接由Al-Si合金粉末制成两相Al-Si合金箔。 这些Al-Si合金箔的特征在于厚度为0.017英寸或更小，并且由于它们是细颗粒的并且基本上没有氧，氮和变形引起的缺陷。 主要相是Al固溶相的压制Al-Si箔也通常是延展性的并适用于随后的成型操作，包括冷轧。 通过冷轧向Al-11.6Si合金箔单次施加的厚度的减小至少为约10％，通过多次这种通过达到约90％的厚度减小。 这种厚度的减小是在不进行消除退火的情况下完成的，但是如果需要用于显微组织修饰，则可以采用这种退火。
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公开(公告)号：US5427735A
公开(公告)日：1995-06-27
申请号：US194967
申请日：1994-02-14
申请人： Ann M. Ritter , Melvin R. Jackson
发明人： Ann M. Ritter , Melvin R. Jackson
CPC分类号： B22F3/15 , B22F1/0003 , B22F5/00
摘要： Dense superalloy foils are prepared by hot isostatically pressing a mixture of low melting alloy powders and high melting alloy powders at a temperature at least equal to or greater than three-quarters of the melting point of the low melting point alloy powder and below the melting point of the high melting point alloy powder, at a pressure of at least 10 thousand pounds per square inch for about one to five hours.
摘要翻译： 通过在低熔点合金粉末和低熔点合金粉末的熔点的至少等于或大于四分之三的温度下等温压制低熔点合金粉末和高熔点合金粉末的混合物来制备密集的超合金箔 的高熔点合金粉末，在至少10,000磅/平方英寸的压力下约1至5小时。
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公开(公告)号：US5503794A
公开(公告)日：1996-04-02
申请号：US265893
申请日：1994-06-27
申请人： Ann M. Ritter , John R. Hughes
发明人： Ann M. Ritter , John R. Hughes
CPC分类号： B22F3/14 , B22F5/00 , Y10T428/12431
摘要： Metal alloy foils are made directly from metal alloy powders by hot pressing. These metal alloy foils are characterized by having a thickness of 0.017 in. or less, and by the fact that they are fine-grained and substantially free of oxygen, nitrogen and deformation-induced defects. In particular, Ti-base alloy foils having an average thickness of about 0.011 in. have been formed directly from Ti-base alloy powders. These as-pressed Ti-base alloy foils are also ductile and adapted for subsequent forming operations, including cold rolling. The deformation which may be imparted in a single pass through cold-rolling to these Ti-base alloy foils is at least about 5%, with up to about 45% deformation imparted to one of these alloys in multiple passes without stress relief annealing. Total reductions in thickness of up to 90% are achieved by a combination of cold-rolling and stress relief annealing.
摘要翻译： 金属合金箔通过热压直接由金属合金粉末制成。 这些金属合金箔的特征在于厚度为0.017英寸或更小，并且由于它们是细粒度的并且基本上没有氧，氮和变形诱发的缺陷。 特别地，平均厚度约为0.011英寸的Ti基合金箔直接由Ti基合金粉末形成。 这些被压制的Ti基合金箔也是延展性的，适用于随后的成型操作，包括冷轧。 可以在通过冷轧的单次通过中赋予这些Ti基合金箔的变形为至少约5％，在多次通过中赋予至多约45％的变形，没有消除退火。 通过冷轧和应力消除退火的组合实现厚度的总减少达到90％。
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8.发明授权Silicon carbide fiber-reinforced titanium base composites having improved interface properties 失效具有改善界面性能的碳化硅纤维增强钛基复合材料
公开(公告)号：US5045407A
公开(公告)日：1991-09-03
申请号：US455048
申请日：1989-12-22
申请人： Ann M. Ritter
发明人： Ann M. Ritter
CPC分类号： C23C4/18 , C22C47/04 , C22C49/11 , C23C14/18 , B22F2999/00 , Y10T428/12486
摘要： The matrix is an alloy having an alpha-2 crystal form. The matrix is reinforced with silicon carbide filaments. To reduce the tendency of the matrix to form cracks due to the brittle nature of the interface with the SiC filaments, the surface of the filaments is coated with a beta phase stabilizer composition. Such a composition contains at least one element selected from the group consisting of Mo, Cr, W, Ta, Pd, Nb, Ag, Zr, Hf, V, Re, Ir, Mn, Fe, Co, Ni, Cu, Pt, Au, and Sn.
摘要翻译： 该基质是具有α-2晶型的合金。 该基质用碳化硅长丝增强。 为了降低由于与SiC长丝的界面的脆性而使基体形成裂纹的趋势，长丝的表面被β相稳定剂组合物涂覆。 这种组合物含有选自Mo，Cr，W，Ta，Pd，Nb，Ag，Zr，Hf，V，Re，Ir，Mn，Fe，Co，Ni，Cu，Pt， Au和Sn。
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9.发明授权Silicon carbide fiber-reinforced titanium base composites of improved tensile properties 失效碳化硅纤维增强钛基复合材料具有改善的拉伸性能
公开(公告)号：US4978585A
公开(公告)日：1990-12-18
申请号：US459894
申请日：1990-01-02
CPC分类号： C22C47/18 , C23C4/08 , C23C4/134 , Y10S428/937 , Y10T428/1216 , Y10T428/12167 , Y10T428/12486
摘要： A method of altering the crystal form of an alloy is disclosed. To accomplish this change in crystal form, the concentrations of the more volatile constituents of the alloy are reduced and the concentration of the less volatile constituents is increased on a relative basis. The process may be carried out in forming a reinforced structure. For this purpose, an improved reinforced matrix and a method of forming it are taught. The reinforcement may be silicon carbide filaments or other reinforcing filaments. The matrix is a titanium 1421 alloy nominally containing 14 weight percent of aluminum and 21 weight percent of niobium. The matrix is formed by plasma-spray forming a powder of the alloy to impart to the alloy particles a superheat during the plasma-spraying as the particles traverse the plasma plume. As a result of the superheat, the alloy is changed in its composition to reduce the aluminum concentration and to increase the niobium and titanium concentrations on a relative basis. As a result of the change in composition the crystal form of the spray deposited matrix is altered to increase the amount of the beta-phase crystal form of the alloy which is present and to decrease the amount of the alpha-2 crystal form of the alloy which is present. The result is the formation of a matrix which is less subject to cracking and which has greater strength.
摘要翻译： 公开了一种改变合金晶体形状的方法。 为了实现晶体形式的这种变化，合金中更易挥发的组分的浓度降低，并且较不易挥发组分的浓度在相对的基础上增加。 该方法可以在形成增强结构中进行。 为此，教导了改进的增强基体及其形成方法。 加强件可以是碳化硅长丝或其它增强细丝。 该基质是名义上含有14重量％铝和21重量％铌的钛1421合金。 通过等离子体喷涂形成基体，通过等离子体喷涂形成合金粉末，以在粒子穿过等离子体羽流时在等离子体喷涂期间赋予合金颗粒过热。 作为过热的结果，合金的组成发生变化，以降低铝的浓度，并相对增加铌和钛的浓度。 作为组成变化的结果，喷涂沉积基质的晶体形状被改变以增加存在的合金的β相晶体形式的量并减少合金的α-2晶形的量 这是存在的。 结果是形成较少受到破裂并具有较大强度的基体。
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10.发明授权Silicon carbide filament reinforced titanium aluminide matrix with reduced cracking tendency 失效碳化硅长丝增强铝化铝基体，具有降低的开裂倾向
公开(公告)号：US5017438A
公开(公告)日：1991-05-21
申请号：US455041
申请日：1989-12-22
申请人： Paul A. Siemers , Ann M. Ritter
发明人： Paul A. Siemers , Ann M. Ritter
CPC分类号： C22C47/18 , Y10T428/12486
摘要： A method for forming a composite having a matrix which is stronger and which is resistant to cracking is disclosed. The composite is reinforced by silicon carbide fibers. The silicon carbide fibers are first RF plasma-spray coated with a niobium metal and the matrix metal of titanium base alpha-2 crystal structure is next RF plasma-spray deposited over the niobium coated SiC fibers to form a layer of Ti base metal reinforced by SiC fibers. A plurality of layered structures are consolidated by heat and pressure into a composite structure.
摘要翻译： 公开了一种形成具有更强且耐开裂的基体的复合材料的方法。 复合材料由碳化硅纤维增强。 碳化硅纤维是用铌金属涂覆的第一次RF等离子体喷涂，钛基α-2晶体结构的基体金属是在铌涂覆的SiC纤维上沉积的下一个RF等离子体喷涂，以形成由 SiC纤维。 通过热和压力将多个分层结构固结成复合结构。
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