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    Ultra high strength alloy for severe oil and gas environments and method of preparation
    3.
    发明授权
    Ultra high strength alloy for severe oil and gas environments and method of preparation 有权
    用于严重油气环境的超高强度合金及其制备方法

    公开(公告)号：US09017490B2

    公开(公告)日：2015-04-28

    申请号：US12742445

    申请日：2008-11-18

    申请人： Sarwan Kumar Mannan

    发明人： Sarwan Kumar Mannan

    IPC分类号： C22C19/05 ,  C22C30/02 ,  C22C30/00 ,  C22F1/10 ,  C22F1/16 ,  F16L19/02

    CPC分类号： C22F1/10 ,  C22C19/055 ,  C22C19/056 ,  F16L19/02

    摘要： A high strength, corrosion resistant alloy suitable for use in oil and gas environments includes, in weight %: 0-12% Fe, 18-24% Cr, 3-6.2% Mo, 0.05-3.0% Cu, 4.0-6.5% Nb, 1.1-2.2% Ti, 0.05-0.4% 0.05-0.2% Al, 0.005-0.040% C, balance Ni plus incidental impurities and deoxidizers. A ratio of Nb/(Ti+Al) is equal to 2.5-7.5 to provide a desired volume fraction of γ′ and γ″ phases. The alloy has a minimum yield strength of 145 ksi.

    摘要翻译： 适用于油气环境的高强度，耐腐蚀合金包括：重量％：0-12％Fe，18-24％Cr，3-6.2％Mo，0.05-3.0％Cu，4.0-6.5％Nb ，1.1-2.2％Ti，0.05-0.4％0.05-0.2％Al，0.005-0.040％C，余量Ni加附带杂质和脱氧剂。 Nb /（Ti + Al）的比例等于2.5-7.5，以提供所需的γ'和γ“相的体积分数。 该合金的最小屈服强度为145ksi。

    Heat treatment for nickel-base alloys
    4.
    发明授权
    Heat treatment for nickel-base alloys 失效
    镍基合金的热处理

    公开(公告)号：US06315846B1

    公开(公告)日：2001-11-13

    申请号：US09517242

    申请日：2000-03-02

    申请人： Edward Lee Hibner ,  Sarwan Kumar Mannan

    发明人： Edward Lee Hibner ,  Sarwan Kumar Mannan

    IPC分类号： C22F110

    CPC分类号： C22F1/10

    摘要： A heat treatment for hot or cold worked 725 corrosion resistant Ni-base alloys to increase the room temperature yield strength of the material to above about 140 ksi (965 MPa). The material is useful for oil patch and gas turbine applications. The process includes annealing the material at about 1825° F. (996° C.) for about 1.5-4 hours, age hardening the material at about 1400° F. (760° C.) for about 3.0 to 10.5 hours to precipitate double gamma prime, furnace cooling the material about 50° F. (28° C.) to 100° F. (56° C.) per hour and heat treating the material at about 1200° F. (649° C.) for about 4.0 to about 12.5 hours.

    摘要翻译： 用于热或冷加工的725耐蚀Ni基合金的热处理，以将材料的室温屈服强度提高到大约140ksi（965MPa）以上。 该材料适用于油贴和燃气轮机应用。 该方法包括将材料在约1825°F（996℃）下退火约1.5-4小时，使材料在约1400°F（760℃）下老化硬化约3.0至10.5小时以沉淀双 将该材料炉温每小时将该材料冷却至约50°F（28℃）至100°F（56℃），并将该材料在约1200°F（649℃）下热处理约约 4.0至约12.5小时。

    ULTRA HIGH STRENGTH ALLOY FOR SEVERE OIL AND GAS ENVIRONMENTS AND METHOD OF PREPARATION
    5.
    发明申请
    ULTRA HIGH STRENGTH ALLOY FOR SEVERE OIL AND GAS ENVIRONMENTS AND METHOD OF PREPARATION 有权
    超高强度合金用于严重油和气体环境及其制备方法

    公开(公告)号：US20110011500A1

    公开(公告)日：2011-01-20

    申请号：US12742445

    申请日：2008-11-18

    申请人： Sarwan Kumar Mannan

    发明人： Sarwan Kumar Mannan

    IPC分类号： C22F1/10 ,  C22C19/05 ,  C22C30/02 ,  C22F1/16 ,  C22C30/00

    CPC分类号： C22F1/10 ,  C22C19/055 ,  C22C19/056 ,  F16L19/02

    摘要： A Ni—Fe—Cr—Mo alloy containing a small amount of Cu and correlated percentages of Nb, Ti and Al to develop a unique microstructure to produce 145 ksi minimum yield strength. The unique microstructure is obtained by special annealing and age hardening conditions, by virtue of which the alloy has an attractive combination of yield strength, impact strength, ductility, corrosion resistance, thermal stability and formability, and is especially suited for corrosive oil well applications that contain gaseous mixtures of carbon dioxide and hydrogen sulfide. The alloy comprises in weight percent the following: 0-15% Fe, 18-24% Cr, 3-9% Mo, 0.05 3.0% Cu, 3.6-6.5% Nb, 0.5-2.2% Ti, 0.05-1.0% Al, 0.005-0.040% C, balance Ni plus incidental impurities and a ratio of Nb/(Al+Ti) in the range of 2.5-7.5. To facilitate formability, the composition range of the alloy is balanced to be Laves phase free. According to the disclosed method of manufacture, the above alloy is provided and hot worked to a desired shape such as a bar or tube for corrosive oil and gas deep wells. The shaped alloy is heat treated by solution annealing, quenching or air cooling, followed by one or two aging steps to precipitate.y′ and y″ phases.

    摘要翻译： 含有少量Cu的Ni-Fe-Cr-Mo合金和Nb，Ti和Al的相关百分比，以形成独特的微结构，以产生145ksi的最小屈服强度。 独特的微观结构是通过特殊的退火和时效硬化条件获得的，由此，合金具有屈服强度，冲击强度，延展性，耐腐蚀性，热稳定性和成形性的有吸引力的组合，并且特别适用于腐蚀性油井应用 含有二氧化碳和硫化氢的气体混合物。 该合金的重量百分比如下：0-15％Fe，18-24％Cr，3-9％Mo，0.05 3.0％Cu，3.6-6.5％Nb，0.5-2.2％Ti，0.05-1.0％Al， 0.005-0.040％C，平衡Ni加杂质，Nb /（Al + Ti）的比例在2.5-7.5的范围内。 为了促进成形性，合金的组成范围平衡为Laves相。 根据所公开的制造方法，提供上述合金并热加工成所需的形状，例如用于腐蚀性油气深井的棒或管。 成形合金通过固溶退火，淬火或空气冷却进行热处理，然后进行一个或两个老化步骤以沉淀“Y”相。