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    ALUMINUM ALLOYS
    4.
    发明公开
    ALUMINUM ALLOYS 审中-公开
    铝合金

    公开(公告)号：EP2714954A2

    公开(公告)日：2014-04-09

    申请号：EP12789530.8

    申请日：2012-05-21

    申请人： Questek Innovations LLC

    发明人： MISRA, Abhijeet ,  WRIGHT, James, A.

    IPC分类号： C22C21/10 ,  C22F1/053

    CPC分类号： C22C21/10 ,  C22F1/053

    摘要： The disclosure relates to an alloy comprising, by weight, about 5.8% to about 6.8% zinc, about 2.5% to about 3.0% magnesium, about 1.5% to about 2.3% copper, 0% to about 0.2% scandium, 0% to about 0.2% zirconium, and optionally less than about 0.50% silver, the balance essentially aluminum and incidental elements and impurities. In embodiments, the alloy has a stress-corrosion cracking threshold stress of at least about 240 MPa using an ASTM G47 short-transverse test specimen and a yield strength of at least about 510 MPa using an ASTM E8 longitudinal test specimen.

    Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels
    5.
    发明公开
    Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels 审中-公开
    纳米碳化物沉淀强化了超高强度，耐腐蚀的结构钢

    公开(公告)号：EP2206799A1

    公开(公告)日：2010-07-14

    申请号：EP10151760.5

    申请日：2002-02-11

    申请人： Questek Innovations LLC

    发明人： Kuehmann, Charles, J. ,  Olson, Gregory, B. ,  Jou, Herng-Jeng

    IPC分类号： C22C38/22 ,  C22C38/30 ,  C22C38/52 ,  C21D8/00 ,  C21D9/00 ,  C22C38/44 ,  C22C38/46 ,  C21D6/02 ,  C21D6/04

    CPC分类号： C21D6/04 ,  B22F2998/00 ,  C21D6/02 ,  C21D8/005 ,  C21D2211/003 ,  C21D2211/004 ,  C22C38/44 ,  C22C38/46 ,  C22C38/50 ,  C22C38/52 ,  C22C33/0285

    摘要： A nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steel possesses a combination of strength and corrosion resistance comprising in combination, by weight, about: 0.1 to 0.3% carbon (C), 8 to 17% cobalt (Co), 0 to 5% nickel (Ni), 6 to 12% chromium (Cr), less than 1% silicon (Si), less than 0.5% manganese (Mn), and less than 0.15% copper (Cu), with additives selected from the group comprising about: less than 3% molybdenum (Mo), less than 0.3% niobium (Nb), less than 0.8% vanadium (V), less than 0.2% tantalum (Ta), less than 3% tungsten (W), and combinations thereof, with additional additives selected from the group comprising about: less than 0.2% titanium (Ti), less than 0.2% lanthanum (La) or other rare earth elements, less than 0.15% zirconium (Zr), less than 0.005% boron (B), and combinations thereof, impurities of less than about: 0.02% sulfur (S), 0.012% phosphorus (P), 0.015% oxygen (O) and 0.015% nitrogen (N), the remainder substantially iron (Fe), incidental elements and other impurities. The alloy is strengthened by nanometer scale M 2 C carbides within a fine lath martensite matrix from which enhanced chemical partitioning of Cr to the surface provides a stable oxide passivating film for corrosion resistance. The alloy, with a UTS in excess of 280 ksi, is useful for applications such as aircraft landing gear, machinery and tools used in hostile environments, and other applications wherein ultrahigh-strength, corrosion resistant, structural steel alloys are desired.

    摘要翻译： 纳米碳化物沉淀强化的超高强度耐腐蚀结构钢具有强度和耐腐蚀性的组合，其包含以重量计约0.1至0.3％的碳（C），8至17％的钴（Co），0至100％ 5％的镍（Ni），6-12％的铬（Cr），小于1％的硅（Si），小于0.5％的锰（Mn）和小于0.15％的铜（Cu） 包含约小于3％的钼（Mo），小于0.3％的铌（Nb），小于0.8％的钒（V），小于0.2％的钽（Ta），小于3％的钨（W） （Ti），小于0.2％镧（La）或其它稀土元素，小于0.15％锆（Zr），小于0.005％硼（ B）及其组合，小于约0.02％硫（S），0.012％磷（P），0.015％氧（O）和0.015％氮（N）的杂质，其余基本上 y铁（Fe），附带元素和其他杂质。 合金通过纳米尺度的M2C碳化物在精细的板条马氏体基体内得到强化，由此增强了Cr到表面的化学分配以提供用于耐腐蚀性的稳定的氧化物钝化膜。 具有超过280ksi的UTS的合金对于诸如飞机起落架，在恶劣环境中使用的机器和工具以及需要超高强度，耐腐蚀的结构钢合金的其他应用的应用是有用的。

    Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels
    6.
    发明公开
    Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels 有权
    Verfahren zur Herestellung Nanocarbidausscheidung verfestigte ultrahochfeste，korrosionsbeständigeBaustähle

    公开(公告)号：EP2192206A1

    公开(公告)日：2010-06-02

    申请号：EP10151840.5

    申请日：2003-02-07

    申请人： Questek Innovations LLC

    发明人： Kuehmann, Charles, J. ,  Olson, Gregory, B. ,  Jou, Herng- Jeng

    IPC分类号： C22C38/22 ,  C22C38/30 ,  C22C38/52 ,  C21D8/00 ,  C21D9/00 ,  C22C38/44 ,  C22C38/46 ,  C21D6/02 ,  C21D6/04

    CPC分类号： C22C38/44 ,  C21D6/02 ,  C21D6/04 ,  C22C38/46 ,  C22C38/50 ,  C22C38/52

    摘要： A nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steel possesses a combination of strength and corrosion resistance comprising in combination, by weight, about: 0.1 to 0.3% carbon (C), 8 to 17% cobalt (Co), 0 to 10% nickel (Ni), 6 to 12% chromium (Cr), less than 1% silicon (Si), less than 0.5% manganese (Mn), and less than 0.15% copper (Cu), with additives selected from the group comprising about: less than 3% molybdenum (Mo), less than 0.3% niobium (Nb), less than 0.8% vanadium (V), less than 0.2% tantalum (Ta), less than 3% tungsten (W), and combinations thereof, with additional additives selected from the group comprising about: less than 0.2% titanium (Ti), less than 0.2% lanthanum (La) or other rare earth elements, less than 0.15% zirconium (Zr), less than 0.005% boron (B), and combinations thereof, impurities of less than about: 0.02% sulfur (S), 0.012% phosphorus (P), 0.015% oxygen (O) and 0.015% nitrogen (N), the remainder substantially iron (Fe), incidental elements and other impurities. The alloy is strengthened by nanometer scale MZC carbides within a fine lath martensite matrix from which enhanced chemical partitioning of Cr to the surface provides a stable oxide passivating film for corrosion resistance. The alloy, with a UTS in excess of 280 ksi, is useful for applications such as aircraft landing gear, machinery and tools used in hostile environments, and other applications wherein ultrahigh-strength, corrosion resistant, structural steel alloys are desired.

    摘要翻译： 纳米碳酸盐沉淀强化超高强度，耐腐蚀的结构钢具有强度和耐腐蚀性的组合，其组合重量包括：约0.1至0.3％的碳（C），8至17％的钴（Co），0至 10％的镍（Ni），6至12％的铬（Cr），小于1％的硅（Si），小于0.5％的锰（Mn）和小于0.15％的铜（Cu） 包括：小于3％的钼（Mo），小于0.3％的铌（Nb），小于0.8％的钒（V），小于0.2％的钽（Ta），小于3％的钨（W） 其中添加剂选自包括：小于0.2％的钛（Ti），小于0.2％的镧（La）或其它稀土元素，小于0.15％的锆（Zr），小于0.005％的硼（ B）及其组合，小于约0.02％硫（S），0.012％磷（P），0.015％氧（O）和0.015％氮（N）的杂质，其余实质 铁（Fe），附带元素等杂质。 该合金由细小的板条马氏体基质中的纳米级MZC碳化物增强，从而从表面提高了Cr的化学分配提供了耐腐蚀性的稳定的氧化物钝化膜。 具有超过280ksi的UTS的合金可用于诸如飞机起落架，在恶劣环境中使用的机械和工具以及其他需要超高强度，耐腐蚀，结构钢合金的应用。

    MARTENSITIC STAINLESS STEEL STRENGHTENED BY NI3 TI N-PHASE PRECIPITATION
    7.
    发明公开
    MARTENSITIC STAINLESS STEEL STRENGHTENED BY NI3 TI N-PHASE PRECIPITATION 审中-公开
    马氏体不锈钢硬化BY NI3-TI-N-PHASE消除

    公开(公告)号：EP1848836A2

    公开(公告)日：2007-10-31

    申请号：EP06733960.6

    申请日：2006-01-25

    申请人： Questek Innovations LLC

    发明人： WRIGHT, James, A. ,  JUNG, Jin-Won

    IPC分类号： C22C38/44

    CPC分类号： C22C38/004 ,  C21D6/004 ,  C21D6/007 ,  C21D2211/008 ,  C22C38/06 ,  C22C38/44 ,  C22C38/50 ,  C22C38/52

    摘要： A precipitation-hardened stainless maraging steel which exhibits a combination of strength, toughness, and corrosion resistance comprises by weight about: 8 to 15% chromium (Cr), 2 to 15% cobalt (Co), 7 to 14% nickel (Ni), and up to about 0.7% aluminum (Al), less than about 0.4% copper (Cu), 0.5 to 2.5% molybdenum (Mo), 0.4 to 0.75% titanium (Ti), up to about 0.5% tungsten (W), and up to about 120wppm carbon (C), the balance essentially iron (Fe) and incidental elements and impurities, characterized in that the alloy has a predominantly lath martensite microstructure essentially without topologically close packed intermetallic phases and strengthened primarily by a dispersion of intermetallic particles primarily of the eta-Ni3Ti phase and wherein the titanium and carbon (Ti) and (C) levels are controlled such that C can be dissolved during a homogenization step and subsequently precipitated during forging to provide a grain- pinning dispersion.

    COHERENT NANODISPERSION-STRENGTHENED SHAPE-MEMORY ALLOYS
    8.
    发明公开
    COHERENT NANODISPERSION-STRENGTHENED SHAPE-MEMORY ALLOYS 有权
    相干NANODSPERSIONSVERFESTIGTE形状记忆合金

    公开(公告)号：EP1629134A2

    公开(公告)日：2006-03-01

    申请号：EP04785866.7

    申请日：2004-03-25

    申请人： Questek Innovations LLC

    发明人： JUNG, Jin-Won ,  OLSON, Gregory, B.

    IPC分类号： C22F1/10 ,  C22C19/03

    CPC分类号： C22F1/006 ,  C22C1/0491 ,  C22C19/007 ,  C22C19/03 ,  C22C32/0052 ,  C22F1/10

    摘要： High strength, low hysteresis TiNi-based shape-memory alloys (SMAs) employing fully coherent low-misfit nanoscale precipitates, as illustrated in Figure 5, wherein the precipitate phase is based on an optimized composition for high parent-phase strength and martensite phase stability, and compensating the stored elastic energy through the addition of martensite stabilizers. The alloys, with a yield strength in excess of 1200 MPa, are useful for applications such as self-expanding stents, automotive actuators, and other applications wherein SMAs with high output force and long cyclic life are desired.

    TITANIUM ALLOYS
    9.
    发明授权
    TITANIUM ALLOYS 有权

    公开(公告)号：EP3034637B1

    公开(公告)日：2018-10-24

    申请号：EP15188525.8

    申请日：2011-04-29

    申请人： Questek Innovations LLC

    发明人： Wright, James A. ,  Sebastian, Jason ,  Jou, Herng-Jen

    IPC分类号： C22C14/00 ,  C22C1/02 ,  C22F1/18

    CPC分类号： B22D25/00 ,  C22C1/02 ,  C22C14/00 ,  C22F1/183

    摘要： Provided herein are titanium alloys that can achieve a combination of high strength and high toughness or elongation, and a method to produce the alloys. By tolerating iron, oxygen, and other incidental elements and impurities, the alloys enable the use of lower quality scrap as raw materials. The alloys are castable and can form -phase laths in a basketweave morphology by a commercially feasible heat treatment that does not require hot-working or rapid cooling rates. The alloys comprise, by weight, 3.0% to 6.0% aluminum, 0% to 1.5% tin, 2.0% to 4.0% vanadium, 0.5% to 4.5% molybdenum, 1.0% to 2.5% chromium, 0.20% to 0.55% iron, 0% to 0.35% oxygen, 0% to 0.007% boron, and 0% to 0.60% other incidental elements and impurities, the balance of weight percent comprising titanium.