Dispersoid reinforced alloy powder and method of making
    1.
    发明授权
    Dispersoid reinforced alloy powder and method of making 有权
    分散增强合金粉末及其制造方法

    公开(公告)号:US08603213B1

    公开(公告)日:2013-12-10

    申请号:US12072298

    申请日:2008-02-25

    IPC分类号: C22C33/02 C22C38/28

    摘要: A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with an introduced reactive species than does the alloying element and wherein one or more atomizing parameters is/are modified to controllably reduce the amount of the reactive species, such as oxygen, introduced into the atomized particles so as to reduce anneal times and improve reaction (conversion) to the desired strengthening dispersoids in the matrix. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix.

    摘要翻译: 制造分散强化合金颗粒的方法包括熔化具有腐蚀和/或抗氧化性赋予合金元素,分散质形成元素和基质金属的合金,其中分散质形成元素表现出更大的与 引入反应性物质,并且其中一个或多个雾化参数被修饰以可控地减少引入到雾化颗粒中的反应物质如氧的量,以减少退火时间并改善反应(转化) 到基质中所需的强化分散体。 雾化的合金颗粒作为固化合金颗粒固化,或作为合金颗粒的固化沉积物固化。 由分散强化的合金颗粒,其沉积物,由于存在耐腐蚀和/或抗氧化性赋予的合金元素,在高温下表现出增强的疲劳和抗蠕变性和降低的磨损以及增强的耐腐蚀和/或耐氧化性。 在颗粒合金基质中的固溶体。

    Apparatus for making environmentally stable reactive alloy powders
    5.
    发明授权
    Apparatus for making environmentally stable reactive alloy powders 失效
    用于制造环境稳定的反应性合金粉末的装置

    公开(公告)号:US5589199A

    公开(公告)日:1996-12-31

    申请号:US328115

    申请日:1994-10-24

    摘要: Apparatus and method for making powder from a metallic melt by atomizing the melt to form droplets and reacting the droplets downstream of the atomizing location with a reactive gas. The droplets are reacted with the gas at a temperature where a solidified exterior surface is formed thereon and where a protective refractory barrier layer (reaction layer) is formed whose penetration into the droplets is limited by the presence of the solidified surface so as to avoid selective reduction of key reactive alloyants needed to achieve desired powder end use properties. The barrier layer protects the reactive powder particles from environmental constituents such as air and water in the liquid or vapor form during subsequent fabrication of the powder to end-use shapes and during use in the intended service environment.

    摘要翻译: 通过使熔体雾化以形成液滴并使雾化位置下游的液滴与反应性气体反应从金属熔体制造粉末的装置和方法。 在其上形成凝固的外表面的温度下,液滴与气体反应,并且形成保护性耐火阻挡层(反应层),其中渗入液滴的渗透被固化表面的存在所限制,以避免选择性 减少需要达到所需粉末末端使用性能的关键反应性合金。 阻挡层在随后将粉末制成粉末至最终使用形状和使用期间在预期的使用环境中保护反应性粉末颗粒免受诸如空气和水的液体或蒸汽形式的环境成分的影响。

    Method of making permanent magnets
    6.
    发明授权
    Method of making permanent magnets 失效
    制造永久磁铁的方法

    公开(公告)号:US5242508A

    公开(公告)日:1993-09-07

    申请号:US869897

    申请日:1992-04-15

    IPC分类号: B22F1/02 B22F9/08 H01F1/057

    摘要: A method for making an isotropic permanent magnet comprises atomizing a melt of a rare earth-transition metal alloy (e.g., an Nd--Fe--B alloy enriched in Nd and B) under conditions to produce protectively coated, rapidly solidified, generally spherical alloy particles wherein a majority of the particles are produced/size classified within a given size fraction (e.g., 5 to 40 microns diameter) exhibiting optimum as-atomized magnetic properties and subjecting the particles to concurrent elevated temperature and elevated isotropic pressure for a time effective to yield a densified, magnetically isotropic magnet compact having enhanced magnetic properties and mechanical properties.

    摘要翻译: 制造各向同性永磁体的方法包括在条件下使稀土 - 过渡金属合金(例如,富含Nd和B的Nd-Fe-B合金)的熔体雾化以产生保护性涂覆的,快速凝固的,通常为球形的合金颗粒 其中大部分颗粒被生产/尺寸分类为显示最佳的雾化磁性能的给定尺寸级分(例如,5至40微米直径),并使颗粒同时升高温度和提高的各向同性压力达到有效产生的时间 具有增强的磁特性和机械性能的致密化的磁各向同性磁体。

    Method for generating fine sprays of molten metal for spray coating and
powder making
    7.
    发明授权
    Method for generating fine sprays of molten metal for spray coating and powder making 失效
    用于产生用于喷涂和粉末制造的熔融金属精细喷雾的方法

    公开(公告)号:US4619845A

    公开(公告)日:1986-10-28

    申请号:US704117

    申请日:1985-02-22

    IPC分类号: B22F9/08 C23C4/12 B05D1/02

    CPC分类号: B22F9/082 C23C4/123

    摘要: A method for generating fine sprays of molten metal for spray coating and wder making is disclosed. Liquid metal is fed via a melt tube to a nozzle that is shaped like the frustrum of a cone. The nozzle is surrounded with gas jets in a coaxial pattern around the melt tube orifice. High pressure gas causes the formation of a low pressure region immediately next to the melt tube orifice that draws metal out of the orifice at a higher rate than would otherwise be the case. The coaxial gas stream atomizes the metal into droplets and thereafter forms a narrow, supersonic spray containing very fine metal droplets suitable for powder making or application of a coating.

    摘要翻译: 公开了一种用于产生用于喷涂和粉末制造的熔融金属喷雾的方法。 液体金属通过熔体管被供给到形状像锥体的锥形的喷嘴。 喷嘴围绕熔体管孔周围以同轴图案的气体射流包围。 高压气体导致紧邻熔体管孔的低压区域的形成,其以比其他情况更高的速率将金属从孔中拉出。 同轴气流将金属雾化成液滴,然后形成窄的超音速喷雾,其包含非常细的金属液滴,其适于粉末制造或施加涂层。

    Pb-Free Sn-Ag-Cu-Mn Solder
    8.
    发明申请
    Pb-Free Sn-Ag-Cu-Mn Solder 审中-公开
    无铅Sn-Ag-Cu-Mn焊料

    公开(公告)号:US20100203353A1

    公开(公告)日:2010-08-12

    申请号:US12456853

    申请日:2009-06-23

    IPC分类号: B32B15/01 C22C13/00

    摘要: A solder alloy comprises Sn, Ag, Cu, and Mn and has a melting temperature of about 211 degrees C. A solder joint and solder process embody the solder alloy as well as solder balls and solder paste made therefrom to provide a solidified joint that includes three different intermetallic phases and a Sn metal phase. An exemplary Sn—Ag—Cu—Mn alloy consists essentially of about 3 to about 4 weight % Ag, about 0.80 to about 1.0 weight % Cu, and about 0.05 to about 0.15 weight % Mn, and balance consisting essentially of Sn.

    摘要翻译: 焊料合金包括Sn,Ag,Cu和Mn,熔化温度约为211摄氏度。焊接接头和焊接工艺包括焊料合金以及由其制成的焊球和焊膏,以提供固化接头,其包括 三种不同的金属间相和一种Sn金属相。 示例性的Sn-Ag-Cu-Mn合金基本上由约3至约4重量%的Ag,约0.80至约1.0重量%的Cu和约0.05至约0.15重量%的Mn组成,余量基本上由Sn组成。

    Dispersoid reinforced alloy powder and method of making
    9.
    发明授权
    Dispersoid reinforced alloy powder and method of making 有权
    分散增强合金粉末及其制造方法

    公开(公告)号:US07699905B1

    公开(公告)日:2010-04-20

    申请号:US11429918

    申请日:2006-05-08

    IPC分类号: B22F9/08

    摘要: A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix.

    摘要翻译: 制造分散强化合金颗粒的方法包括熔化具有腐蚀和/或抗氧化性赋予合金元素,分散质形成元素和基质金属的合金,其中分散质形成元素表现出更大的与 从雾化气体获得的反应物质比合金元素。 熔化的合金与包括反应性物质的雾化气体雾化以形成雾化颗粒,使得反应性物质(a)溶解在固溶体中至雾化颗粒表面下方的深度和/或(b)与分散质 - 形成元素以在雾化颗粒中形成分散质,使其在所述雾化颗粒的表面下方的深度。 雾化的合金颗粒作为固化合金颗粒固化,或作为合金颗粒的固化沉积物固化。 由分散强化的合金颗粒,其沉积物,由于存在耐腐蚀和/或抗氧化性赋予的合金元素,在高温下表现出增强的疲劳和抗蠕变性和降低的磨损以及增强的耐腐蚀和/或耐氧化性。 在颗粒合金基质中的固溶体。

    Lead-free solder
    10.
    发明授权
    Lead-free solder 失效
    无铅焊料

    公开(公告)号:US06231691B1

    公开(公告)日:2001-05-15

    申请号:US08796471

    申请日:1997-02-10

    IPC分类号: C22C700

    CPC分类号: B23K35/262

    摘要: A Sn—Ag—Cu eutectic alloy is modified with one or more low level and low cost alloy additions to enhance high temperature microstructural stability and thermal-mechanical fatigue strength without decreasing solderability. Purposeful fourth or fifth element additions in the collective amount not exceeding about 1 weight % (wt. %) are added to Sn—Ag—Cu eutectic solder alloy based on the ternary eutectic Sn—4.7%Ag—1.7%Cu (wt. %) and are selected from the group consisting essentially of Ni, Fe, and like-acting elements as modifiers of the intermetallic interface between the solder and substrate to improve high temperature solder joint microstructural stability and solder joint thermal-mechanical fatigue strength.

    摘要翻译: Sn-Ag-Cu共晶合金用一种或多种低水平和低成本的合金添加剂进行改性,以提高高温微结构稳定性和热机械疲劳强度,而不降低可焊性。 基于三元共晶Sn-4.7%Ag-1.7%Cu(重量%),Sn-Ag-Cu共晶焊料合金中加入总量不超过约1重量%(重量%)的有目的的第四或第五元素添加量 ),并且选自基本上由Ni,Fe和类似作用元素组成的组,作为焊料和衬底之间的金属间界面的改性剂,以改善高温焊点微结构稳定性和焊点热 - 机械疲劳强度。