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公开(公告)号：US07459035B2
公开(公告)日：2008-12-02
申请号：US10864418
申请日：2004-06-10
申请人： Shinya Imano , Hiroyuki Doi , Hirotsugu Kawanaka , Eiji Saitou
发明人： Shinya Imano , Hiroyuki Doi , Hirotsugu Kawanaka , Eiji Saitou
CPC分类号： C22F1/10 , C22C19/05 , C22C19/056 , C22C19/058 , C22C30/00 , C22C38/06 , C22C38/48 , C22C38/50 , F05B2220/301
摘要： To provide a rotor material preferable for a steam turbine of which main steam temperature is 675° C. or more, particularly exceeding 700° C., and a steam turbine plant having a rotor formed by the material, the invention provides a steam turbine plant including a very-high-pressure turbine of which steam inlet temperature is 675 to 725° C. and steam outlet temperature is 650° C. or less, a high-pressure turbine, and a medium-low-pressure turbine, wherein a rotor of the very-high-pressure turbine is formed from a forged material of NiFe-base alloy containing: 14 to 18 weight % Cr, 15 to 45 weight % Fe, 1.0 to 2.0 weight % Al, 1.0 to 1.8 weight % Ti, C and N of which the sum is 0.05 or less weight %, and Nb in the range specified by the formula: 3.5−(Fe weight %)/20
摘要翻译： 为了提供优选主蒸汽温度为675℃或更高，特别是超过700℃的蒸汽轮机的转子材料，以及具有由该材料形成的转子的蒸汽轮机设备，本发明提供了一种汽轮机设备 包括蒸汽入口温度为675〜725℃，蒸汽出口温度为650℃以下的高压涡轮机，高压涡轮机和中低压涡轮机，其中转子 的超高压涡轮机由NiFe基合金的锻造材料形成，该锻造材料包含：14-18重量％的Cr，15-45重量％的Fe，1.0-2.0重量％的Al，1.0-1.8重量％的Ti，C 并且其总和为0.05重量％以下的Nb，Nb在由式3.5-（Fe重量％）/ 20 <（Nb重量％）<4.5-（Fe重量％）/ 20）规定的范围内。
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2.发明授权公开(公告)号：US08512488B2
公开(公告)日：2013-08-20
申请号：US11836900
申请日：2007-08-10
申请人： Shinya Imano , Hirotsugu Kawanaka , Hiroyuki Doi , Tatsuya Takahashi , Tsukasa Azuma , Koji Kajikawa
发明人： Shinya Imano , Hirotsugu Kawanaka , Hiroyuki Doi , Tatsuya Takahashi , Tsukasa Azuma , Koji Kajikawa
摘要： An Ni—Fe based superalloy forging material including 30 to 40 wt % of Fe, 14 to 16 wt % of Cr, 1.2 to 1.7 wt % of Ti, 1.1 to 1.5 wt % of Al, 1.9 to 2.2 wt % of Nb, 0.05 wt % or less of C and the remainder of Ni and inevitable impurities is solution-treated and aged, and thereby γ′ phase (Ni3Al) having an initial mean particle size of about 50 to about 100 nm is precipitated. This superalloy is excellent in high-temperature strength and high-temperature ductility and can produce a large forged product of 10 ton or more. Therefore, this material is suitable for use as the material of a steam turbine rotor having a main steam temperature of 650° C. or more.
摘要翻译： 包含Fe：30〜40重量％，Cr：14〜16重量％，Ti：1.2〜1.7重量％，Al：1.1〜1.5重量％，Nb：1.9〜2.2重量％，Ni： 重量％以下的C和余量的Ni和不可避免的杂质进行溶液处理和老化，由此沉淀出初始平均粒度为约50〜约100nm的γ'相（Ni3Al）。 该超合金具有优异的高温强度和高温延展性，可生产10吨以上的大型锻造产品。 因此，该材料适用于主蒸汽温度为650℃以上的汽轮机转子的材料。
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3.发明授权Pipe for steam turbine, manufacturing process of same, main stream pipe and reheat pipe for steam turbine, and steam turbine power plant using those pipes 有权蒸汽轮机管道，制造工艺相同，蒸汽轮机主流管道和再热管，以及使用这些管道的蒸汽轮机发电厂公开(公告)号：US07632066B2
公开(公告)日：2009-12-15
申请号：US11480978
申请日：2006-07-06
IPC分类号： F01D25/00
CPC分类号： B22D13/02 , C22C38/001 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , F05B2260/60
摘要： A pipe for a steam turbine is formed of a centrifugal casting material to achieve resistance against higher temperatures and improve reliability of the pipe by employing, as a pipe material, a centrifugal casting material normalized to contain uniform and finer crystal grains. The centrifugal casting material is made of steel having a columnar structure in the radial direction with the crystal grain size number of 5 or more in a plane perpendicular to the radial direction. The steel includes 0.05-0.5% by mass C, not more than 1.0% Si, 0.05-1.5% Mn, 0.01-2.5% Ni, 8.0-13.0% Cr, 0.05-2.5% Mo, not more than 3.0% W, 0.05-0.35% V, 0.01-0.5% Nb, not more than 5% Co, 0.01-0.1% N, not more than 0.03% B, and not more than 0.05% Al.
摘要翻译： 用于汽轮机的管由离心铸造材料形成，以通过采用归一化为含有均匀和更细晶粒的离心铸造材料作为管材料来实现耐高温性和提高管的可靠性。 离心铸造材料由垂直于径向方向的平面中的晶粒尺寸数为5以上的在径向具有柱状结构的钢制成。 该钢含有0.05〜0.5质量％的C，不大于1.0％的Si，0.05-1.5％的Mn，0.01-2.5％的Ni，8.0-13.0％的Cr，0.05-2.5％的Mo，不大于3.0％的W，0.05 -0.35％V，0.01-0.5％Nb，不大于5％Co，0.01-0.1％N，不大于0.03％B和不大于0.05％Al。
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4.发明申请公开(公告)号：US20090068052A1
公开(公告)日：2009-03-12
申请号：US12153552
申请日：2008-05-21
CPC分类号： C22C38/44 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/46 , C22C38/48 , C22C38/52 , C22C38/54
摘要： The invention is of a heat resisting martensitic steel comprising, by weight, 0.05 to 0.30% C, not more than 0.50% Si, not more than 0.60% Mn, 8.0 to 13.0% Cr, 0.5 to 3.0% Ni, 1.0 to 3.0% Mo, 0.1 to 1.5% W, 0.5 to 4% Co, 0.05 to 0.35% V, 0.02 to 0.30% in total of one or two elements selected from the group consisting of Nb and Ta, and 0.02 to 0.10% N, wherein a value of the square of a difference between the Ni amount and the Co amount, and the Ni amount are not more than values determined by a straight line drawn on a point A (1.0, 2.7%) and a point B (2.5, 1.0%) in the orthogonal coordinates shown in the attached drawing of FIG. 2 which represents a relationship between the above square value and the Ni amount, and an amount ratio of Mo/(Mo+0.5W) is not less than 0.5. The heat resisting steel is suitably used in various components of a gas turbine.
摘要翻译： 本发明是耐热马氏体钢，其含有0.05〜0.30％C，不大于0.50％Si，不大于0.60％Mn，8.0〜13.0％Cr，0.5〜3.0％Ni，1.0〜3.0％ Mo，0.1〜1.5％W，0.5〜4％Co，0.05〜0.35％V，0.02〜0.30％，1种或2种选自Nb和Ta的元素和0.02〜0.10％N，其中a Ni量和Co量之间的差的平方值，Ni量不大于通过点A（1.0,2.7％）和点B（2.5,1.0％）绘制的直线所确定的值， ）在图1的附图中示出。 2表示上述平方值与Ni量之间的关系，Mo /（Mo + 0.5W）的量比不小于0.5。 耐热钢适用于燃气轮机的各种部件。
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5.发明申请Pipe for steam turbine, manufacturing process of same, main steam pipe and reheat pipe for steam turbine, and steam turbine power plant using those pipes 有权蒸汽轮机管道，制造工艺相同，蒸汽轮机主蒸汽管道和再热管道，以及使用这些管道的蒸汽轮机发电厂公开(公告)号：US20070014671A1
公开(公告)日：2007-01-18
申请号：US11480978
申请日：2006-07-06
IPC分类号： F03B3/12
CPC分类号： B22D13/02 , C22C38/001 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , F05B2260/60
摘要： A pipe for a steam turbine is formed of a centrifugal casting material to achieve resistance against higher temperatures and improve reliability of the pipe by employing, as a pipe material, a centrifugal casting material normalized to contain uniform and finer crystal grains. The centrifugal casting material is made of steel having a columnar structure in the radial direction with the crystal grain size number of 5 or more in a plane perpendicular to the radial direction. The steel includes 0.05-0.5% by mass C, not more than 1.0% Si, 0.05-1.5% Mn, 0.01-2.5% Ni, 8.0-13.0% Cr, 0.05-2.5% Mo, not more than 3.0% W, 0.05-0.35% V, 0.01-0.5% Nb, not more than 5% Co, 0.01-0.1% N, not more than 0.03% B, and not more than 0.05% Al.
摘要翻译： 用于汽轮机的管由离心铸造材料形成，以通过采用归一化为含有均匀和更细晶粒的离心铸造材料作为管材料来实现耐高温性和提高管的可靠性。 离心铸造材料由垂直于径向方向的平面中的晶粒尺寸数为5以上的在径向具有柱状结构的钢制成。 该钢含有0.05〜0.5质量％的C，不大于1.0％的Si，0.05-1.5％的Mn，0.01-2.5％的Ni，8.0-13.0％的Cr，0.05-2.5％的Mo，不大于3.0％的W，0.05 -0.35％V，0.01-0.5％Nb，不大于5％Co，0.01-0.1％N，不大于0.03％B和不大于0.05％Al。
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6.发明申请公开(公告)号：US20050074356A1
公开(公告)日：2005-04-07
申请号：US10757847
申请日：2004-01-16
CPC分类号： C22C38/44 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/46 , C22C38/48 , C22C38/52 , C22C38/54
摘要： The invention is of a heat resisting martensitic steel comprising, by weight, 0.05 to 0.30% C, not more than 0.50% Si, not more than 0.60% Mn, 8.0 to 13.0% Cr, 0.5 to 3.0% Ni, 1.0 to 3.0% Mo, 0.1 to 1.5% W, 0.5 to 4% Co, 0.05 to 0.35% V, 0.02 to 0.30% in total of one or two elements selected from the group consisting of Nb and Ta, and 0.02 to 0.10% N, wherein a value of the square of a difference between the Ni amount and the Co amount, and the Ni amount are not more than values determined by a straight line drawn on a point A (1.0, 2.7%) and a point B (2.5, 1.0%) in the orthogonal coordinates shown in the attached drawing of FIG. 2 which represents a relationship between the above square value and the Ni amount, and an amount ratio of Mo/(Mo+0.5 W) is not less than 0.5. The heat resisting steel is suitably used in various components of a gas turbine.
摘要翻译： 本发明是耐热马氏体钢，其含有0.05〜0.30％C，不大于0.50％Si，不大于0.60％Mn，8.0〜13.0％Cr，0.5〜3.0％Ni，1.0〜3.0％ Mo，0.1〜1.5％W，0.5〜4％Co，0.05〜0.35％V，0.02〜0.30％，1种或2种选自Nb和Ta的元素和0.02〜0.10％N，其中a Ni量和Co量之间的差的平方值，Ni量不大于通过点A（1.0,2.7％）和点B（2.5,1.0％）绘制的直线所确定的值， ）在附图中所示的正交坐标中
图。 2表示上述平方值与Ni量之间的关系，Mo /（Mo + 0.5W）的量比不小于0.5。 耐热钢适用于燃气轮机的各种部件。 -
7.发明授权Ni-base alloy, high-temperature member for steam turbine and welded rotor for turbine using the same, and method for manufacturing the same 有权镍基合金，蒸汽轮机的高温部件和使用其的涡轮机的焊接转子及其制造方法公开(公告)号：US08883072B2
公开(公告)日：2014-11-11
申请号：US12551884
申请日：2009-09-01
申请人： Jun Sato , Shinya Imano , Hiroyuki Doi
发明人： Jun Sato , Shinya Imano , Hiroyuki Doi
CPC分类号： C22C19/055 , B23K35/004 , B23K35/304 , B23K2101/001 , C22C19/056 , C22F1/10 , F01D5/063 , Y02T50/671
摘要： The present invention provides, in a γ′ phase precipitation strengthening type Ni-base alloy, an alloy excellent in heat treatment capability and weldability and suitable for joint with a ferritic steel. Further, the present invention provides a welded turbine rotor having the strength, ductility, and toughness simultaneously over the whole welded structure when a precipitation strengthening type Ni-base alloy having a heatproof temperature of 675° C. or higher is joined to a ferritic steel.A Ni-base alloy according to the present invention contains cobalt, chromium, aluminum, carbon, boron, and at least either tungsten or molybdenum with the remainder being nickel and inevitable impurities, having an alloy composition including 12 to 25 percent by mass of Co, 10 to 18 percent by mass of Cr, 2.0 to 3.6 percent by mass of Al, 0.01 to 0.15 percent by mass of C, 0.001 to 0.03 percent by mass of B, the total amount of tungsten and molybdenum being 5.0 to 10 percent by mass.A welded turbine rotor is structured by joining or building up by welding a second Ni-base alloy to a first Ni-base alloy that a γ′ phase solid solution temperature thereof is 900° C. or higher and a creep fracture strength at 675° C. is 100 MPa or more, and further welding a ferritic steel to the second Ni-base alloy. The second Ni-base alloy is a γ′ phase (Ni3Al) precipitation strengthening type Ni-base alloy, a γ′ phase solid solution temperature thereof is 850° C. or lower.
摘要翻译： 本发明在γ-相析出强化型Ni基合金中提供了热处理能力和焊接性优异的合金，适用于与铁素体钢接合的合金。 此外，本发明提供了一种在整个焊接结构中具有强度，延展性和韧性的焊接式涡轮转子，当耐热温度为675℃以上的析出强化型Ni基合金与铁素体钢 。 根据本发明的镍基合金包含钴，铬，铝，碳，硼，以及至少钨或钼，其余为镍和不可避免的杂质，其合金组成包含12〜25质量％的Co ，10〜18质量％的Cr，2.0〜3.6质量％的Al，0.01〜0.15质量％的C，0.001〜0.03质量％的B，钨和钼的总量为5.0〜10质量％ 质量 焊接的涡轮转子通过将第二Ni基合金焊接到γ'相固相温度为900℃以上的第一Ni基合金和675°的蠕变断裂强度下， C为100MPa以上，进一步将铁素体钢焊接到第二Ni基合金。 第二Ni基合金是γ'相（Ni3Al）析出强化型Ni基合金，γ'相固溶温度为850℃以下。
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公开(公告)号：US08524149B2
公开(公告)日：2013-09-03
申请号：US12728292
申请日：2010-03-22
申请人： Jun Sato , Shinya Imano , Hiroyuki Doi
发明人： Jun Sato , Shinya Imano , Hiroyuki Doi
CPC分类号： C22C19/055
摘要： A nickel base alloy includes: by mass, 0.001 to 0.1% of carbon; 12 to 23% of chromium; 15 to 25% of cobalt; 3.5 to 5.0% of aluminum; 4 to 12% of molybdenum; 0.1 to 7.0% of tungsten; and a total amount of Ti, Ta and Nb being not more than 0.5%. A parameter Ps represented by a formula (1) shown below is 0.6 to 1.6, Ps=−7×[C]−0.1×[Mo]+0.5×[Al] (1) where [C] indicates an amount of carbon; [Mo] indicates an amount of molybdenum; and [Al] indicates an amount of aluminum, by mass percent.
摘要翻译： 镍基合金包括：质量计，0.001〜0.1％的碳; 12〜23％的铬; 15〜25％的钴; 3.5〜5.0％的铝; 4〜12％的钼; 0.1〜7.0％的钨; Ti，Ta和Nb的总量不大于0.5％。 由下式（1）表示的参数Ps为0.6〜1.6，Ps = -7×[C] -0.1×[Mo] + 0.5×[Al]（1）其中，[C]表示碳数; [Mo]表示钼的量; 和[Al]表示铝的质量％。
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9.发明授权Low-thermal-expansion Ni-based super-heat-resistant alloy for boiler and having excellent high-temperature strength, and boiler component and boiler component production method using the same 有权用于锅炉的低热膨胀Ni基超耐热合金并具有优异的高温强度，以及使用其的锅炉部件和锅炉部件生产方法公开(公告)号：US08444778B2
公开(公告)日：2013-05-21
申请号：US12675688
申请日：2008-08-29
申请人： Toshihiro Uehara , Takehiro Ohno , Akihiro Toji , Takashi Sato , Gang Bao , Shinya Imano , Hiroyuki Doi
发明人： Toshihiro Uehara , Takehiro Ohno , Akihiro Toji , Takashi Sato , Gang Bao , Shinya Imano , Hiroyuki Doi
CPC分类号： C22C19/055 , C22F1/10 , F28F21/083
摘要： Disclosed is a low-thermal-expansion Ni-based super-heat-resistant alloy for a boiler, which has excellent high-temperature strength. The alloy can be welded without the need of carrying out any aging treatment. The alloy has a Vickers hardness value of 240 or less. The alloy comprises (by mass) C in an amount of 0.2% or less, Si in an amount of 0.5% or less, Mn in an amount of 0.5% or less, Cr in an amount of 10 to 24%, one or both of Mo and W in such an amount satisfying the following formula: Mo+0.5 W=5 to 17%, Al in an amount of 0.5 to 2.0%, Ti in an amount of 1.0 to 3.0%, Fe in an amount of 10% or less, and one or both of B and Zr in an amount of 0.02% or less (excluding 0%) for B and in an amount of 0.2% or less (excluding 0%) for Zr, with the remainder being 48 to 78% of Ni and unavoidable impurities.
摘要翻译： 公开了一种用于锅炉的低热膨胀Ni基超耐热合金，其具有优异的高温强度。 可以焊接合金，而不需要进行任何时效处理。 该合金的维氏硬度值为240以下。 该合金含有0.2质量％以下的Si（以质量计），0.5％以下的Si，0.5％以下的Mn，10〜24％的Cr，1种或2种 的Mo和W的量满足下式：Mo + 0.5W = 5〜17％，Al为0.5〜2.0％，Ti为1.0〜3.0％，Fe为10％ 以下的B和Zr中的一种或两种，B的含量为0.02％以下（不包括0％），Zr的含量为0.2％以下（不含0％），余量为48〜78 ％的Ni和不可避免的杂质。
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10.发明授权公开(公告)号：US08043068B2
公开(公告)日：2011-10-25
申请号：US11206131
申请日：2005-08-18
申请人： Shinya Imano , Hiroyuki Doi , Isao Takehara , Shigeo Sakurai
发明人： Shinya Imano , Hiroyuki Doi , Isao Takehara , Shigeo Sakurai
IPC分类号： F01D5/14
CPC分类号： C22C19/056 , C22C19/058 , C22F1/10 , F01D5/02 , F01D25/005
摘要： A Ni—Fe based super alloy having high strength and toughness at high temperatures even when used in high-temperature environments, and a process of producing the super alloy. A turbine disk using the super alloy, a process of producing the turbine disk, a turbine spacer using the super alloy, and a process of producing the turbine spacer, as well as a gas turbine are also provided. The Ni—Fe based super alloy contains not more than 0.03% by weight of C, 14-18% of Cr, 15-45% of Fe, 0.5-2.0% of Al, not more than 0.05% of N, 0.5 to 2.0% of Ti, 1.5-5.0% of Nb, and Ni as a main ingredient.
摘要翻译： 即使在高温环境下使用时，也能够在高温下具有高强度和韧性的Ni-Fe系超合金，以及超合金的制造方法。 还提供了使用超级合金的涡轮盘，制造涡轮盘的方法，使用超级合金的涡轮间隔件，以及制造涡轮间隔件的工艺以及燃气轮机。 Ni-Fe基超合金含有不超过0.03重量％的Cr，14-18％的Cr，15-45％的Fe，0.5-2.0％的Al，不超过0.05的N，0.5-2.0 Ti的％，Nb的1.5〜5.0％，Ni为主要成分。
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