Nickel Based Superalloys and Articles
    1.
    发明申请
    Nickel Based Superalloys and Articles 审中-公开
    镍基超合金和制品

    公开(公告)号:US20120273093A1

    公开(公告)日:2012-11-01

    申请号:US13545960

    申请日:2012-07-10

    IPC分类号: C22F1/10

    摘要: Nickel based alloys are provided comprising from about 7.0 weight percent (wt %) to about 12.0 wt % chromium, from about 0.1 wt % to about 5 wt % molybdenum, from about 0.2 wt % to about 4.5 wt % titanium, from about 4 wt % to about 6 wt % aluminum, from about 3 wt % to about 4.9 wt % cobalt, from about 6.0 wt % to about 9.0 wt % tungsten, from about 4.0 wt % to about 6.5 wt % tantalum, from about 0.05 wt % to about 0.6 wt % hafnium, up to about 1.0 wt % niobium, up to about 0.02 wt % boron, and up to about 0.1 wt % carbon, with the remainder being nickel and incidental impurities. The alloys may be cast, directionally solidified and heat treated to provide articles having a gamma prime fraction of greater than about 50%.

    摘要翻译: 提供镍基合金,其包含约7.0重量%(wt%)至约12.0wt%的铬,约0.1wt%至约5wt%的钼,约0.2wt%至约4.5wt%的钛,约4wt 约6重量%的铝,约3重量%至约4.9重量%的钴,约6.0重量%至约9.0重量%的钨,约4.0重量%至约6.5重量%的钽,约0.05重量%至约0.05重量% 约0.6重量%的铪,至多约1.0重量%的铌,至多约0.02重量%的硼,以及至多约0.1重量%的碳,其余为镍和附带的杂质。 合金可以铸造,定向固化和热处理以提供具有大于约50%的γ'分数的制品。

    Nickel-based superalloys and articles
    2.
    发明授权
    Nickel-based superalloys and articles 有权
    镍基超级合金和制品

    公开(公告)号:US08226886B2

    公开(公告)日:2012-07-24

    申请号:US12551294

    申请日:2009-08-31

    IPC分类号: C22C19/05 C22F1/10

    摘要: Nickel based alloys are provided comprising from about 7.0 weight percent (wt %) to about 12.0 wt % chromium, from about 0.1 wt % to about 5 wt % molybdenum, from about 0.2 wt % to about 4.5 wt % titanium, from about 4 wt % to about 6 wt % aluminum, from about 3 wt % to about 4.9 wt % cobalt, from about 6.0 wt % to about 9.0 wt % tungsten, from about 4.0 wt % to about 6.5 wt % tantalum, from about 0.05 wt % to about 0.6 wt % hafnium, up to about 1.0 wt % niobium, up to about 0.02 wt % boron, and up to about 0.1 wt % carbon, with the remainder being nickel and incidental impurities. The alloys may be cast, directionally solidified and heat treated to provide articles having a gamma prime fraction of greater than about 50%.

    摘要翻译: 提供镍基合金,其包含约7.0重量%(wt%)至约12.0wt%的铬,约0.1wt%至约5wt%的钼,约0.2wt%至约4.5wt%的钛,约4wt 约6重量%的铝,约3重量%至约4.9重量%的钴,约6.0重量%至约9.0重量%的钨,约4.0重量%至约6.5重量%的钽,约0.05重量%至约0.05重量% 约0.6重量%的铪,至多约1.0重量%的铌,至多约0.02重量%的硼,以及至多约0.1重量%的碳,其余为镍和附带的杂质。 合金可以铸造,定向固化和热处理以提供具有大于约50%的γ'分数的制品。

    Nickel-Based Superalloys and Articles
    3.
    发明申请
    Nickel-Based Superalloys and Articles 有权
    镍基超合金和制品

    公开(公告)号:US20110052443A1

    公开(公告)日:2011-03-03

    申请号:US12551294

    申请日:2009-08-31

    IPC分类号: C22C19/05 C22F1/10

    摘要: Nickel based alloys are provided comprising from about 7.0 weight percent (wt %) to about 12.0 wt % chromium, from about 0.1 wt % to about 5 wt % molybdenum, from about 0.2 wt % to about 4.5 wt % titanium, from about 4 wt % to about 6 wt % aluminum, from about 3 wt % to about 4.9 wt % cobalt, from about 6.0 wt % to about 9.0 wt % tungsten, from about 4.0 wt % to about 6.5 wt % tantalum, from about 0.05 wt % to about 0.6 wt % hafnium, up to about 1.0 wt % niobium, up to about 0.02 wt % boron, and up to about 0.1 wt % carbon, with the remainder being nickel and incidental impurities. The alloys may be cast, directionally solidified and heat treated to provide articles having a gamma prime fraction of greater than about 50%.

    摘要翻译: 提供镍基合金,其包含约7.0重量%(wt%)至约12.0wt%的铬,约0.1wt%至约5wt%的钼,约0.2wt%至约4.5wt%的钛,约4wt 约6重量%的铝,约3重量%至约4.9重量%的钴,约6.0重量%至约9.0重量%的钨,约4.0重量%至约6.5重量%的钽,约0.05重量%至约0.05重量% 约0.6重量%的铪,至多约1.0重量%的铌,至多约0.02重量%的硼,以及至多约0.1重量%的碳,其余为镍和附带的杂质。 合金可以铸造,定向固化和热处理以提供具有大于约50%的γ'分数的制品。

    Nickel base superalloys and turbine components fabricated therefrom
    4.
    发明授权
    Nickel base superalloys and turbine components fabricated therefrom 有权
    镍基超级合金和由其制造的涡轮部件

    公开(公告)号:US06908518B2

    公开(公告)日:2005-06-21

    申请号:US10158134

    申请日:2002-05-31

    摘要: A nickel base superalloy suitable for the production of a large, crack-free nickel-base superalloy gas turbine bucket suitable for use in a large land-based utility gas turbine engine, comprising, by weight percents: Chromium 7.0 to 12.0 Carbon 0.06 to 0.10 Cobalt 5.0 to 15.0 Titanium 3.0 to 5.0 Aluminum 3.0 to 5.0 Tungsten 3.0 to 12.0 Molybdenum 1.0 to 5.0 Boron 0.0080 to 0.01 Rhenium 0 to 10.0 Tantalum 2.0 to 6.0 Columbium 0 to 2.0 Vanadium 0 to 3.0 Hafnium 0 to 2.0 and remainder nickel and incidental impurities.

    摘要翻译: 适用于生产适用于大型陆基公用燃气涡轮发动机的大型无裂纹镍基超级合金燃气轮机铲斗的镍基超级合金,其重量百分比包含:7.0至12.0碳0.06至0.10 钴5.0至15.0钛3.0至5.0铝3.0至5.0钨3.0至12.0钼1.0至5.0硼0.0080至0.01铼0至10.0钽2.0至6.0铌0至2.0钒0至3.0铪0至2.0其余为镍和附带杂质 。

    Isothermal and high retained strain forging of Ni-base superalloys
    6.
    发明授权
    Isothermal and high retained strain forging of Ni-base superalloys 失效
    Ni基超级合金的等温和高保留应变锻造

    公开(公告)号:US6059904A

    公开(公告)日:2000-05-09

    申请号:US862448

    申请日:1997-05-23

    IPC分类号: B22F3/24 C22F1/10 B22F3/00

    摘要: A method combining isothermal and high retained strain forging is described for Ni-base superalloys, particularly those which comprise a mixture of .gamma. and .gamma.' phases, and most particularly those which contain at least about 40 percent by volume of .gamma.'. The method permits the manufacture of forged articles having a fine grain size in the range of 20 .mu.m or less. The method comprises the selection of a fine-grained forging preform formed from a Ni-base superalloy, isothermal forging to develop the shape of the forged article, subsolvus forging to impart a sufficient level of retained strain to the forged article to promote subsequent recrystallization and avoid critical grain growth, and annealing to recrystallize the microstructure. The method permits the forging of relatively complex shapes and avoids the problem of critical grain growth. The method may also be used to produce location specific grain sizes and phase distributions within the forged article.

    摘要翻译: 描述了一种组合等温和高保留应变锻造的方法,用于Ni基超级合金,特别是包含γ和γ'相的混合物的那些,特别是包含至少约40体积%的γ'的那些。 该方法允许制造具有20μm以下的细粒度的锻造制品。 该方法包括选择由Ni基超级合金形成的细粒锻造预成型体,等温锻造以形成锻造制品的形状,以进行锻造以赋予锻造制品足够的保留应变水平以促进随后的重结晶, 避免临界晶粒生长,退火再结晶组织。 该方法允许锻造相对复杂的形状并避免关键晶粒生长的问题。 该方法还可用于在锻造制品内产生特定位置的粒度和相分布。

    Method for controlling grain size in Ni-base superalloys
    7.
    发明授权
    Method for controlling grain size in Ni-base superalloys 失效
    控制Ni基超级合金的晶粒尺寸的方法

    公开(公告)号:US5649280A

    公开(公告)日:1997-07-15

    申请号:US581783

    申请日:1996-01-02

    IPC分类号: C22C1/04 C22F1/10 B22F3/24

    CPC分类号: C22F1/10 C22C1/0433

    摘要: A method of high retained strain forging is described for Ni-base superalloys, particularly those which comprise a mixture of .gamma. and .gamma.' phases, and most particularly those which contain at least about 30 percent by volume of .gamma.'. The method utilizes an extended subsolvus anneal to recrystallize essentially all of the superalloy and form a uniform, free grain size. Such alloys may also be given a supersolvus anneal to coarsen the grain size and redistribute the .gamma.'. The method permits the manufacture of forged articles having a fine grain size in the range of about ASTM 5-12 (5-60 .mu.m).

    摘要翻译: 描述了一种高保留应变锻造的方法,用于Ni基超级合金,特别是包含γ和γ'相的混合物,特别是包含至少约30体积%的γ'的那些。 该方法利用扩展的子沉积退火将基本上所有的超合金重结晶并形成均匀的自由晶粒尺寸。 这种合金也可以被给予超溶解退火以粗化晶粒尺寸并重新分布γ'。 该方法允许制造具有在大约ASTM 5-12(5-60μm)范围内的细晶粒度的锻造制品。

    Turbine rotor heat treatment process
    8.
    发明授权
    Turbine rotor heat treatment process 有权
    涡轮转子热处理工艺

    公开(公告)号:US07217330B2

    公开(公告)日:2007-05-15

    申请号:US10604633

    申请日:2003-08-06

    IPC分类号: C22F1/10

    CPC分类号: C22F1/10 F01D5/02 F05D2230/40

    摘要: A method of heat treating a turbine rotor disk to obtain different radial properties at different locations in the rotor disk includes a) heating the rotor disk for a period of from 4 to 10 hours at a temperature of 1800° F.; b) cooling the rotor disk to a temperature of about 1550° F.; c) holding the rotor disk at about 1550° F. for a period of from about 2 to about 4 hours; d) cooling the rotor disk to room temperature; e) precipitation aging the rotor disk by heating the rotor disk to temperature of 1325° F. for 8 hours, holding it at 1150° F. for 8 hours, and f) cooling the rotor disk.

    摘要翻译: 在转子盘的不同位置处对涡轮转子盘进行热处理以获得不同的径向特性的方法包括:a)在1800°F的温度下加热转子盘4至10小时; b)将转子盘冷却至约1550°F的温度; c)将转子盘保持在约1550°F约2至约4小时; d)将转子盘冷却至室温; e)通过将转子盘加热到1325°F温度8小时,使转子盘沉淀老化,将其保持在1150°F下8小时,f)冷却转子盘。

    Vacuum arc remelting apparatus and process
    9.
    发明授权
    Vacuum arc remelting apparatus and process 失效
    真空电弧重熔设备及工艺

    公开(公告)号:US06295309B1

    公开(公告)日:2001-09-25

    申请号:US09651962

    申请日:2000-08-31

    IPC分类号: H05B360

    CPC分类号: H05B7/07

    摘要: A VAR process is conducted in an apparatus characterized by a crucible wall that provides a stable shelf anchor. The VAR apparatus includes a furnace chamber, a consumable electrode formed of a material to be remelted within the furnace chamber and a crucible within the furnace chamber. The crucible has a wall that forms a vessel to collect melt material from the consumable electrode. At least part of the wall is textured to provide area for mechanical stabilization of the shelf as the underside of the shelf melts and the upperside of the shelf forms. In a vacuum arc remelting process, a consumable electrode is loaded into a furnace chamber above a cooled crucible having a textured wall that forms a vessel to collect melt material from the consumable electrode. The process includes striking a direct electric current between the electrode and a bottom of the crucible to cause melting of material from a tip of the electrode. Melt material is collected from the tip in the crucible. The melt material is cooled to form an ingot characterized by a shelf of solidified material forming adjacent the textured section of the crucible wall in advance of a lower boundary of solidifying material.

    摘要翻译: 在由坩埚壁构成的设备中进行VAR工艺,该坩埚壁提供稳定的搁板锚。 VAR设备包括炉室,由炉室内重熔的材料形成的可消耗电极和炉室内的坩埚。 坩埚具有形成容器以从消耗性电极收集熔体材料的壁。 墙壁的至少一部分是纹理化的,以提供架子的机械稳定性的区域,因为架子的下侧熔化,并且架子的上侧形成。 在真空电弧重熔工艺中,可消耗电极被装载到具有纹理壁的冷却坩埚之上的炉室中,所述纹理壁形成容器以从可消耗电极收集熔体材料。 该过程包括在电极和坩埚的底部之间引起直流电流,引起材料从电极尖端的熔化。 从坩埚中的尖端收集熔体材料。 熔融材料被冷却以形成特征在于在凝固材料的下边界之前形成为邻近坩埚壁的纹理部分的凝固材料的搁板。