知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

140 条记录 (耗时 0.018 秒)

    Manufacturing method for aluminum matrix nanocomposite
    34.
    发明授权
    Manufacturing method for aluminum matrix nanocomposite 有权
    铝基纳米复合材料的制造方法

    公开(公告)号：US07297310B1

    公开(公告)日：2007-11-20

    申请号：US10738275

    申请日：2003-12-16

    申请人： Jack Y. Peng ,  Mark van den Bergh ,  William C. Harrigan, Jr.

    发明人： Jack Y. Peng ,  Mark van den Bergh ,  William C. Harrigan, Jr.

    IPC分类号： B22F3/02

    CPC分类号： C22C32/0036 ,  B22F2009/0844 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/1084 ,  C22C1/1094 ,  B22F9/08 ,  B22F9/04 ,  B22F3/04 ,  B22F3/10 ,  B22F3/02 ,  B22F3/14 ,  B22F2202/13

    摘要： A simple method to produce Aluminum Metal Matrix Nanocomposite with 2 to 35 volume percent of nano Al2O3 reinforcement phase without adding nano Al2O3 particles in a direct step of the metal matrix. The initial necessary material is an aluminum powder with nanoscale surface oxide. The volume percent of Al2O3 is determined by the particle size distribution and the thickness of the Al2O3 layer. The Al2O3 surface layers or shells are broken up and are uniformly distributed throughout the nanocomposite after the powder consolidation into billet and the hot and/or cold metal working of the billet.

    摘要翻译： 制备具有2至35体积％的纳米Al 2 O 3 3+增强相的铝金属基质纳米复合材料的简单方法，而不添加纳米Al 2 O 3 在金属基体的直接步骤中的3 颗粒。 初始必需的材料是具有纳米尺度表面氧化物的铝粉末。 Al 2 O 3 3的体积百分数由Al 2 O 3 O 3的粒度分布和厚度确定， SUB>层。 在将粉末固结成坯料之后，将Al 2 O 3 3 O 3表面层或壳分解成均匀分布在整个纳米复合材料中，并且将热和/或冷金属加工成 坯料

    Method of manufacturing a ferritic-martensitic, Oxide Dispersion Strengthened alloy
    36.
    发明授权
    Method of manufacturing a ferritic-martensitic, Oxide Dispersion Strengthened alloy 失效
    制备铁素体马氏体，氧化物分散强化合金的方法

    公开(公告)号：US06974506B2

    公开(公告)日：2005-12-13

    申请号：US10255229

    申请日：2002-09-25

    申请人： Véronique Lambard ,  Ana Alamo ,  Jean-Louis Seran

    发明人： Véronique Lambard ,  Ana Alamo ,  Jean-Louis Seran

    IPC分类号： G21C5/00 ,  C21D1/78 ,  C21D6/00 ,  C22C1/05 ,  C22C1/10 ,  C22C32/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/22 ,  C22C38/44 ,  G21C3/07 ,  C22C38/18

    CPC分类号： C22C38/22 ,  C21D6/002 ,  C21D2211/005 ,  C22C1/1094 ,  C22C32/0026 ,  C22C38/44 ,  G21C3/07 ,  Y02E30/40

    摘要： This invention relates to a method of manufacturing an improved ferritic or martensitic alloy based on iron and chromium strengthened by a dispersion of oxides, commonly called an Oxide Dispersion Strengthened or ODS alloy, and, more particularly to a method of manufacturing a ferritic or martensitic ODS alloy with large grains based on iron and chromium which has a single phase ferritic or martensitic matrix having an isotropic microstructure and a grain size that is sufficient to guarantee mechanical strength compatible with a use of this alloy at high temperature and/or under neutron irradiation.According to the invention, the method comprises slow cooling of an austenite at a cooling rate less than or equal to the critical cooling rate for transformation of this austenite into ferrite.

    摘要翻译： 本发明涉及一种通过氧化物分散体（通常称为氧化物分散强化或ODS合金）增强的基于铁和铬的改进的铁素体或马氏体合金的制造方法，更具体地说，涉及一种制造铁素体或马氏体ODS的方法 具有基于铁和铬的大颗粒的合金，其具有具有各向同性微观结构的单相铁素体或马氏体基体，并且足以确保在高温和/或在中子照射下使用该合金的机械强度。 根据本发明，该方法包括以低于或等于将该奥氏体转变为铁素体的临界冷却速率的冷却速率缓慢冷却奥氏体。

    Method of manufacturing oxide dispersion strengthened martensitic steel excellent in high-temperature strength having residual alpha-grains
    37.
    发明申请
    Method of manufacturing oxide dispersion strengthened martensitic steel excellent in high-temperature strength having residual alpha-grains 有权
    制造具有优异的具有残留α粒子的高温强度的氧化物分散强化马氏体钢的方法

    公开(公告)号：US20050084406A1

    公开(公告)日：2005-04-21

    申请号：US10928119

    申请日：2004-08-30

    申请人： Satoshi Ohtsuka ,  Shigeharu Ukai ,  Takeji Kaito ,  Takeshi Narita ,  Masayuki Fujiwara

    发明人： Satoshi Ohtsuka ,  Shigeharu Ukai ,  Takeji Kaito ,  Takeshi Narita ,  Masayuki Fujiwara

    IPC分类号： B22F3/12 ,  C21D1/28 ,  C21D6/00 ,  C22C1/10 ,  C22C33/02 ,  C22C38/00 ,  B22F3/20

    CPC分类号： C21D6/002 ,  B22F2003/208 ,  B22F2003/248 ,  B22F2998/00 ,  B22F2998/10 ,  C21D1/28 ,  C21D2211/004 ,  C22C1/1094 ,  C22C33/0228 ,  C22C38/22 ,  C22C38/28 ,  C22C1/1084 ,  B22F9/04 ,  B22F3/20 ,  B22F3/24

    摘要： An oxide dispersion strengthened martensitic steel excellent in high-temperature strength having residual α-grains can be manufactured by a method comprising mixing either element powders or alloy powders and a Y2O3 powder; subjecting the resulting mixed powder to mechanical alloying treatment; solidifying the resulting alloyed powder by hot extrusion; and subjecting the resulting extruded solidified material to final heat treatment involving normalizing and tempering heat treatment to thereby manufacture an oxide dispersion strengthened martensitic steel which comprises, as expressed by % by weight, 0.05 to 0.25% C, 8.0 to 12.0% Cr, 0.1 to 4.0% W, 0.1 to 1.0% Ti, 0.1 to 0.5% Y2O3 with the balance being Fe and unavoidable impurities and in which Y2O3 particles are dispersed in the steel, wherein α to γ transformation is not allowed to occur during the described hot extrusion and the proportion of residual α-grains in which oxide particles are finely dispersed in high density is increased by controlling the mixture ratio of the powders for the mechanical alloying treatment so that an excess oxygen content in the steel (a value obtained by subtracting an oxygen content in Y2O3 from an oxygen content in steel) satisfies “0.22×Ti

    摘要翻译： 可以通过以下方法来制造具有残留α-晶粒的高温强度优异的氧化物分散强化马氏体钢，即，将元素粉末或合金粉末与Y 2 O 3 O 3 >粉末; 将所得混合粉末进行机械合金化处理; 通过热挤压固化所得合金粉末; 对所得到的挤出固化材料进行最终热处理，使其进行正火和回火热处理，从而制造氧化物分散强化马氏体钢，其含量为0.05〜0.25％，C：8.0〜12.0％，Cr：0.1〜 4.0％W，0.1〜1.0％Ti，0.1〜0.5％Y 2 O 3 3，余量为Fe和不可避免的杂质，其中Y 2 < 在所述钢中分散有3个以上的颗粒，其中在所述热挤压期间不允许发生α至γ相变，并且将氧化物颗粒细分散在其中的残留α-晶粒的比例高 通过控制用于机械合金化处理的粉末的混合比例来增加密度，使得钢中的过量氧含量（通过减去Y 2 O 3中的氧含量获得的值< / SUB>从钢中的氧含量）满足“0.22×Ti

    Methods of treating preform elements
    38.
    发明授权
    Methods of treating preform elements 有权
    处理预制件元件的方法

    公开(公告)号：US06517902B2

    公开(公告)日：2003-02-11

    申请号：US09827672

    申请日：2001-04-06

    申请人： Eric F. Drake ,  Harold A. Sreshta ,  Nigel Dennis Griffin

    发明人： Eric F. Drake ,  Harold A. Sreshta ,  Nigel Dennis Griffin

    IPC分类号： C23C1627

    CPC分类号： E21B10/567 ,  B22F2005/001 ,  B22F2998/00 ,  C22C1/1094 ,  E21B10/5673 ,  Y10T428/30 ,  B22F7/06

    摘要： A method of thermally treating a preform element, of the kind having a facing table of polycrystalline diamond bonded to a substrate of cemented tungsten carbide, comprises the steps of: (a) heating the element to a soaking temperature of 550-625° C., and preferably about 600° C., (b) maintaining the element at that temperature for at least one hour, and (c) cooling the element to ambient temperature. The resulting preform element has a substrate with a cobalt binder including a substrate interface zone with at least 30 percent by volume of the cobalt binder a hexagonal close packed crystal structure. This reduces the risk of cracking or delamination of the element in use.

    摘要翻译： 一种热处理预成型件元件的方法，该预成型件元件具有结合到粘结碳化钨的基底的多晶金刚石的面对台，包括以下步骤：（a）将元件加热到550-625℃的均热温度 ，优选约600℃，（b）将元件保持在该温度下至少1小时，和（c）将元件冷却至环境温度。 所得到的预成型件元件具有包含具有至少30体积％的钴粘合剂的基底界面区域的钴粘合剂的基底，六方密堆积晶体结构。 这降低了使用中的元件的开裂或分层的风险。