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    Age-hardenable, nickel-base superalloy with improved notch ductility
    1.
    依法登记的发明
    Age-hardenable, nickel-base superalloy with improved notch ductility 有权

    公开(公告)号：USH2245H1

    公开(公告)日：2010-08-03

    申请号：US12046871

    申请日：2008-03-12

    申请人： Karl A. Heck ,  Richard B. Frank

    发明人： Karl A. Heck ,  Richard B. Frank

    IPC分类号： B22D23/00 ,  C22F1/10 ,  C22C19/05

    摘要： A precipitation hardenable nickel base alloy that provides a novel combination of elevated temperature strength, ductility, and reduced notch sensitivity at temperatures up to about 1300° F. is described. The alloy contains, in weight percent, about Carbon0.10max. Manganese0.35max. Silicon0.2-0.7 Phosphorus0.03max. Sulfur0.015max. Chromium12-20 Molybdenum4max. Tungsten6max. Cobalt5-12 Iron14max. Titanium0.4-1.4 Aluminum0.6-2.6 Niobium3-7 Boron0.003-0.015 the balance being nickel and usual impurities. An article made from the alloy and a method of making the alloy are also disclosed.

    Controlled thermal expansion superalloy
    3.
    发明授权
    Controlled thermal expansion superalloy 失效
    受控热膨胀超合金

    公开(公告)号：US5439640A

    公开(公告)日：1995-08-08

    申请号：US116651

    申请日：1993-09-03

    申请人： Karl A. Heck ,  Melissa A. Moore ,  Darrell F. Smith, Jr. ,  Larry I. Stein ,  John S. Smith

    发明人： Karl A. Heck ,  Melissa A. Moore ,  Darrell F. Smith, Jr. ,  Larry I. Stein ,  John S. Smith

    IPC分类号： C22C30/00 ,  C22C38/10 ,  C22C19/00

    CPC分类号： C22C30/00 ,  C22C38/10

    摘要： The invention provides a controlled coefficient of thermal expansion alloy having in weight percent about 26-50% cobalt, about 20-40% nickel, about 20-35% iron, about 4-10% aluminum, about 0.5-5% niobium plus 1/2 of tantalum weight percent and about 1.5-10% chromium. Additionally the alloy may contain about 0-1% titanium, about 0-0.2% carbon, about 0-1% copper, about 0-2% manganese, about 0-2% silicon, about 0-8% molybdenum, about 0-8% tungsten, about 0-0.3% boron, about 0-2% rhenium, about 0-2% hafnium, about 0-0.3% zirconium, about 0-0.5% nitrogen, about 0-1% yttrium, about 0-1% lanthanum, about 0-1% total rare earths other than lanthanum, about 0-1% cerium, about 0-1% magnesium, about 0-1% calcium, about 0-4% oxidic dispersoid and incidental impurities. The alloy may be further optimized with respect to crack growth resistance by annealing at temperature below about 1010.degree. C. or temperatures between 1066.degree. C. or 1110.degree. C. and the melting temperature and by aging at a beta precipitation temperature greater than about 788.degree. C.

    摘要翻译： 本发明提供了控制的热膨胀合金系数，其重量百分比为约26-50％的钴，约20-40％的镍，约20-35％的铁，约4-10％的铝，约0.5-5％的铌加1 / 2的钽重量百分比和约1.5-10％的铬。 此外，合金可以含有约0-1％的钛，约0-0.2％的碳，约0-1％的铜，约0-2％的锰，约0-2％的硅，约0-8％的钼， 8％钨，约0-0.3％硼，约0-2％铼，约0-2％铪，约0-0.3％锆，约0-0.5％氮，约0-1％钇，约0-1 镧，约0-1％除镧以外的总稀土，约0-1％的铈，约0-1％的镁，约0-1％的钙，约0-4％的氧化分散质和杂质。 可以通过在低于约1010℃的温度或在1066℃或1110℃之间的温度下退火并且在大于约788的β沉淀温度下的熔融温度和老化下， DEG C.

    Oxidation resistant low expansion superalloys
    4.
    发明授权
    Oxidation resistant low expansion superalloys 失效
    耐氧化低膨胀超级合金

    公开(公告)号：US5403547A

    公开(公告)日：1995-04-04

    申请号：US227296

    申请日：1994-04-13

    申请人： John S. Smith ,  Darrell F. Smith, Jr. ,  Roneldo L. Fisher ,  Karl A. Heck

    发明人： John S. Smith ,  Darrell F. Smith, Jr. ,  Roneldo L. Fisher ,  Karl A. Heck

    IPC分类号： C22C19/00 ,  C22C30/00 ,  C22C38/00 ,  C22C38/54

    CPC分类号： C22C30/00

    摘要： An oxidation resistant alloy containing iron, cobalt, nickel and at least 4 to 5% by weight aluminum having at least a duplex crystalline structure. One crystalline component of this structure is a gamma (fcc) phase having a gamma prime phase dispersed therein. The second crystalline component is enriched in aluminum compared to the first crystalline component and exhibits characteristics under X-ray diffraction and electron diffraction analysis of a BCC B2 structured phase.

    摘要翻译： 含有铁，钴，镍的至少4至5重量％的铝至少具有双相晶体结构的抗氧化合金。 该结构的一个结晶成分是其中分散有γ'相的γ（fcc）相。 与第一结晶组分相比，第二结晶组分富含铝，并且在BCC B2结构相的X射线衍射和电子衍射分析下表现出特征。