公开(公告)号：US4789412A

公开(公告)日：1988-12-06

申请号：US28085

申请日：1987-03-19

Applicant: Shigeyoshi Nakamura ,  Tetsuo Kashimura ,  Nobuyuki Iizuka ,  Yutaka Fukui ,  Minoru Morikawa ,  Soichi Kurosawa

Inventor： Shigeyoshi Nakamura ,  Tetsuo Kashimura ,  Nobuyuki Iizuka ,  Yutaka Fukui ,  Minoru Morikawa ,  Soichi Kurosawa

IPC: C22C19/07 ,  C22C30/00

CPC classification number: C22C19/07

Abstract: A cobalt-base alloy comprises 0.2-1 wt % C 0.4-2 wt % Si, 0.2-1.5 wt % Mn, 5-15 wt % Ni, 20-35 wt % Cr, 3-15 wt % W, 0.003-0.1 wt % Ni, 20-35 wt % Cr, 3-15 wt % W, 0.003-0.1 wt % B, 0.05-1 wt % Nb, 0.01-1 wt % Ta, 2 wt % or less Fe, 30 ppm or less oxygen, 100 ppm or less nitrogen, and the balance of 45 wt % or more Co, wherein the content of Si is larger than that of Mn. The alloy is in a form of casting and has a structure containing a eutectic carbide and a secondary carbide dispersed therein. The cast alloy is produced through solution treatment at 1,100.degree.-1.200.degree. C., and aging treatment at 950.degree.-1,050.degree. C., and cooling rate after the solution treatment and after the aging treatment is 150.degree. to 300.degree. C./h. A gas turbine nozzle is made of a casting of the above-mentioned alloy.

Abstract translation: 钴基合金包含0.2-1重量％C 0.4-2重量％的Si，0.2-1.5重量％的Mn，5-15重量％的Ni，20-35重量％的Cr，3-15重量％的W，0.003-0.1 重量％Ni，20-35重量％Cr，3-15重量％W，0.003-0.1重量％B，0.05-1重量％Nb，0.01-1重量％Ta，2重量％以下Fe，30ppm以下 氧，100ppm以下的氮，余量为45重量％以上的Co，其中Si的含量大于Mn的含量。 该合金为铸造形式，并且具有包含共晶碳化物和分散在其中的二次碳化物的结构。 铸造合金通过在1100℃-2200℃下的溶液处理，950℃-150℃的时效处理，固溶处理后和冷却后的冷却速度为150〜300℃/ H。 燃气轮机喷嘴由上述合金的铸件制成。

公开(公告)号：US4988266A

公开(公告)日：1991-01-29

申请号：US321880

申请日：1989-03-10

Applicant: Shigeyoshi Nakamura ,  Yutaka Fukui ,  Tetsuo Kashimura

Inventor： Shigeyoshi Nakamura ,  Yutaka Fukui ,  Tetsuo Kashimura

IPC: C22C19/05 ,  C22C19/07 ,  C22C30/00 ,  C22C38/00 ,  C22C38/22 ,  C22C38/44 ,  F01D5/06 ,  F01D5/28 ,  F01D11/08 ,  F01D11/12

CPC classification number: F01D11/122 ,  C22C19/055 ,  C22C19/07 ,  C22C30/00 ,  C22C38/22 ,  C22C38/44 ,  F01D11/08 ,  F01D5/28 ,  F05D2240/11 ,  F05D2300/608 ,  F05D2300/609

Abstract: A gas turbine includes a turbine stubshaft, a plurality of turbine disks coupled to the shaft by turbine stacking bolts with spacers interposed therebetween, turbing moving blades planted in each of the disks, a shroud provided with a sliding surface in a spaced-apart relation to the tips of the moving blades, a distant piece connected to the disks by the bolts, a plurality of compressor disks coupled to the distant piece by compressor stacking bolts, compressor blades planted in each of the compressor disks, and a compressor stubshaft formed integrally with the compressor disk located at the first stage. At least a sliding portion of the shroud is made of a heat-resistant cast alloy having in turn a chilled layer and columnar grains in a direction oriented from the sliding surface thereof toward the interior thereof. A method of producing a segment-shaped shroud for a gas turbine by casting, comprises the steps of preparing a mold having a coated layer formed on at least a surface thereof which is to be in contact with a casting, the coated layer containing refractory aggregate powder at a main constituent, and refractory agent powder for accelerating generation of crystal nuclei, pouring the molten alloy into the mold, and forced-cooling the outer surface of the mold.

公开(公告)号：US5964091A

公开(公告)日：1999-10-12

申请号：US679398

申请日：1996-07-09

Applicant: Yutaka Fukui ,  Tetsuo Kashimura ,  Hideyo Kodama ,  Hiroyuki Doi ,  Ryo Hiraga

Inventor： Yutaka Fukui ,  Tetsuo Kashimura ,  Hideyo Kodama ,  Hiroyuki Doi ,  Ryo Hiraga

IPC: C22C38/10 ,  F01D5/28 ,  F02C6/18 ,  F23R3/00 ,  F02C1/00

CPC classification number: F23R3/00 ,  C22C38/105 ,  F01D5/288 ,  F02C6/18 ,  F23C2900/03001 ,  Y02T50/671 ,  Y10S60/902

Abstract: A cylindrical gas turbine combustor, burning injected fuel and guiding the combustion gas to turbine nozzles, includes a cylindrical portion such as a combustor liner and a transition piece, exposed to the combustion gas, which is made of austenitic Fe base casting alloy, Ni base casting alloy or Co base casting alloy.

Abstract translation: 燃烧喷射燃料并将燃烧气体引导到涡轮喷嘴的圆柱形燃气轮机燃烧器包括暴露于由奥氏体Fe基铸造合金制成的燃烧气体的燃烧器衬套和过渡件的圆柱形部分，Ni基 铸造合金或Co基铸造合金。

公开(公告)号：USRE33186E

公开(公告)日：1990-03-27

申请号：US308022

申请日：1989-02-09

Applicant: Takanobu Mori ,  Yutaka Fukui ,  Tetsuo Kashimura ,  Yoshimi Yanai

Inventor： Takanobu Mori ,  Yutaka Fukui ,  Tetsuo Kashimura ,  Yoshimi Yanai

IPC: H02K9/00 ,  H02K9/20 ,  H02K33/04 ,  H02K55/04

CPC classification number: H02K9/20 ,  H02K33/04 ,  H02K55/04 ,  Y02E40/625 ,  Y10S505/878

Abstract: An electric rotary machine (for example, a dynamoelectric machine) having a superconducting rotor is disclosed in which an outer shielding member for protecting a superconducting field winding from the influence of the magnetic flux from the stator side and for interrupting heat radiated from the normal temperature side is made of a nickel alloy containing not more than 0.3% carbon, not more than 1% silicon, not more than 2% manganese, not more than 1.5% titanium, from 2 to 8% aluminum, from 8 to 40% copper, and not less than 55% nickel for the balance by weight. The nickel alloy has a structure that a .gamma.'-phase precipitation is formed by aging in an austenitic matrix, and is non-magnetic at 20.degree. C.

公开(公告)号：US5480283A

公开(公告)日：1996-01-02

申请号：US246624

申请日：1994-05-20

Applicant: Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

Inventor： Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

IPC: C22C19/05 ,  C22C19/07 ,  C22C30/00 ,  F01D5/18 ,  F02C6/00 ,  F01D1/02

CPC classification number: C22C19/07 ,  C22C19/055 ,  C22C19/056 ,  C22C30/00 ,  F01D5/186 ,  F01D5/187 ,  F02C6/00 ,  F05D2260/201 ,  F05D2260/202

Abstract: A Ni-base superalloy consisting essentially of, by weight: 0.05 to 0.20% C, 20 to 25% Co, 15 to 25% Cr, 1.0 to 3.0% Al, 1.0 to 3.0% Ti, 1.0 to 3.0% Nb, 5 to 10% W, and at least 55% Ni, the combination of the [Al+Ti] and tungsten contents being determined as shown in FIG. 5. This superalloy has a high thermal-fatigue resistance, a great high-temperature strength, particularly, a great creep rupture strength, and a good weldability. The superalloy is used to form gas turbine nozzles, which are employed in a gas turbine. Using such a gas turbine, a combined power generating system is built.

Abstract translation: 一种Ni基超合金，其主要由以重量计：C：0.05〜0.20％，Co：20〜25％，Cr：15〜25％，Al：1.0〜3.0％，Ti：1.0〜3.0％，Nb：1.0〜 10％W和至少55％的Ni，[Al + Ti]和钨含量的组合如图1所示确定。 该超合金具有高耐热疲劳性，高温强度，特别是大的蠕变断裂强度和良好的可焊性。 超级合金用于形成用于燃气轮机中的燃气轮机喷嘴。 使用这种燃气轮机，构建组合发电系统。

公开(公告)号：US4642495A

公开(公告)日：1987-02-10

申请号：US726394

申请日：1985-04-23

Applicant: Takanobu Mori ,  Yutaka Fukui ,  Tetsuo Kashimura ,  Yoshimi Yanai

Inventor： Takanobu Mori ,  Yutaka Fukui ,  Tetsuo Kashimura ,  Yoshimi Yanai

IPC: H02K9/00 ,  H02K9/20 ,  H02K33/04 ,  H02K55/04

CPC classification number: H02K9/20 ,  H02K33/04 ,  H02K55/04 ,  Y02E40/625 ,  Y10S505/878

Abstract: An electric rotary machine (for example, a dynamoelectric machine) having a superconducting rotor is disclosed in which an outer shielding member for protecting a superconducting field winding from the influence of the magnetic flux from the stator side and for interrupting heat radiated from the normal temperature side is made of a nickel alloy containing not more than 0.3% carbon, not more than 1% silicon, not more than 2% manganese, not more than 1.5% titanium, from 2 to 8% aluminum, from 8 to 40% copper, and not less than 55% nickel for the balance by weight. The nickel alloy has a structure that a .gamma.'-phase precipitation is formed by aging in an austenitic matrix, and is non-magnetic at 20.degree. C.

Abstract translation: 公开了一种具有超导转子的旋转电机（例如，电动机），其中用于保护超导磁场绕组免受来自定子侧的磁通的影响并用于中断从常温辐射的热的外屏蔽部件 侧面由含有不超过0.3％碳，不超过1％硅，不超过2％锰，不超过1.5％钛，2至8％铝，8至40％铜， 和不少于55重量％的镍。 镍合金具有通过在奥氏体基体中老化形成γ相析出的结构，并且在20℃下是非磁性的。

公开(公告)号：US4174213A

公开(公告)日：1979-11-13

申请号：US882455

申请日：1978-03-01

Applicant: Yutaka Fukui ,  Fumio Hataya ,  Tetsuo Kashimura

Inventor： Yutaka Fukui ,  Fumio Hataya ,  Tetsuo Kashimura

IPC: C22C19/05 ,  C22C38/00 ,  C22C19/00 ,  C22C28/00

CPC classification number: C22C19/053

Abstract: The present alloys of iron-nickel-chromium-molybdenum system are alloys having high strength and ductility, comprising 0.03-0.2% by weight of carbon, not more than 2% by weight of silicon, not more than 2% by weight of manganese, 42-70% by weight of nickel, 15-35% by weight of chromium, 4.5-15% by weight of molybdenum, 0.05-1.0% by weight of at least one of Ti and Nb as additive elements, and 7.5-35% by weight of iron, the balance being incidental impurities, or further contain 0.1-10% by weight of at least one of tungsten and cobalt as reinforcing elements.

Abstract translation: 本发明的铁 - 镍 - 铬 - 钼系合金是具有高强度和延展性的合金，包括0.03-0.2重量％的碳，不超过2重量％的硅，不超过2重量％的锰， 42-70重量％的镍，15-35重量％的铬，4.5-15重量％的钼，0.05-1.0重量％的作为添加元素的Ti和Nb中的至少一种，以及7.5-35重量％ 的铁，余量是杂质，或进一步含有0.1-10重量％的钨和钴中的至少一种作为增强元素。

公开(公告)号：US4080202A

公开(公告)日：1978-03-21

申请号：US666356

申请日：1976-03-12

Applicant: Yutaka Fukui ,  Tetsuo Kashimura ,  Fumio Hataya

Inventor： Yutaka Fukui ,  Tetsuo Kashimura ,  Fumio Hataya

IPC: F01D9/02 ,  C22C19/07

CPC classification number: C22C19/07

Abstract: A cobalt base alloy consisting essentially of, in weight percent, about 0.1% to about 0.5% carbon, about 0.3% to about 2.0% silicon, about 0.3% to about 2.0% manganese, about 5.0% to about 15.0% nickel, about 26.0% to about 35.0% chromium, about 3.0% to about 10.0% tungsten, about 0.003% to about 0.1% boron, about 0.01% to about 1.0% titanium, about 0.01% to about 1.0% niobium and optionally about 0.05% to about 1.0% mischmetal and the balance being essentially cobalt together with impurities and incidental elements normally associated with a cobalt base alloy, which has high strength and high ductility even at high temperatures and is especially suitable as a material to be used at high temperatures under high thermal stress, such as a material for a nozzle of a gas turbine engine.

Abstract translation: 一种钴基合金，其基本上由重量百分数约0.1％至约0.5％的碳，约0.3％至约2.0％的硅，约0.3％至约2.0％的锰，约5.0％至约15.0％的镍，约26.0 约35.0％的铬，约3.0％至约10.0％的钨，约0.003％至约0.1％的硼，约0.01％至约1.0％的钛，约0.01％至约1.0％的铌和约0.05％至约1.0％ ％的稀土金属和余量基本上是钴，以及通常与钴基合金相关的杂质和偶然元素，其即使在高温下也具有高强度和高延展性，并且特别适合作为在高热应力下在高温下使用的材料 ，例如用于燃气涡轮发动机的喷嘴的材料。

公开(公告)号：US5510080A

公开(公告)日：1996-04-23

申请号：US310410

申请日：1994-09-22

Applicant: Kazuya Nishi ,  Kishio Hidaka ,  Tetsuo Kashimura ,  Shigeyoshi Nakamura ,  Yutaka Fukui ,  Shinichi Nakahara

Inventor： Kazuya Nishi ,  Kishio Hidaka ,  Tetsuo Kashimura ,  Shigeyoshi Nakamura ,  Yutaka Fukui ,  Shinichi Nakahara

IPC: F23R3/42 ,  C22C1/10 ,  C22C19/05 ,  C22C32/00 ,  F01D5/28 ,  F02F7/00

CPC classification number: F01D5/28 ,  C22C32/0026 ,  F02F7/0085 ,  F05C2201/0466 ,  Y02T50/672

Abstract: There is provided an oxide dispersion-strengthened nickel alloy which has a hot working property, a structure stability at high temperature, improved creep characteristics at high temperature and improved heat resistant fatigue characteristics. The oxide dispersion-strengthened alloy is composed of an oxide containing one or more kinds of elements in an amount of 2 wt % or less selected from the group composed of titanium, zirconium and hafnium, chromium in an amount of 15-35 wt %, carbon in an amount of 0.01-0.4 wt % and Y.sub.2 O.sub.3 in an amount of 0.3-2.0 wt %, and the balance of substantially nickel, wherein Y.sub.2 O.sub.3 is dispersed as particles in the matrix of the nickel alloy containing one or more kinds of elements selected from the group composed of titanium, zirconium and hafnium, chromium and carbon. The elements of equipment such as the nozzle guide vane of a gas turbine, the liner and transition piece of a combustor, and the like are composed of the oxide dispersion-strengthened alloy of the present invention so that they can be used at high temperature.

Abstract translation: 提供了具有热加工性，高温结构稳定性，高温下蠕变特性提高，耐热疲劳特性提高的氧化物分散强化镍合金。 氧化物分散强化合金由含有选自钛，锆和铪组成的组中的2重量％以下的1种以上的元素的氧化物，15〜35重量％的铬， 0.01-0.4重量％的碳和0.3-2.0重量％的Y 2 O 3，余量基本上为镍，其中Y 2 O 3作为颗粒分散在含有选择的一种或多种元素的镍合金基质中 由钛，锆和铪组成的组，铬和碳组成。 燃气轮机的喷嘴引导叶片，燃烧器的衬套和过渡件等设备的元件由本发明的氧化物分散强化合金构成，从而可以在高温下使用。

公开(公告)号：US5370497A

公开(公告)日：1994-12-06

申请号：US965699

申请日：1992-10-23

Applicant: Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

Inventor： Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

IPC: C22C19/05 ,  C22C19/07 ,  C22C30/00 ,  F01D5/18 ,  F01D9/02 ,  F02C6/00 ,  F01D1/02

CPC classification number: C22C19/056 ,  C22C19/055 ,  C22C19/07 ,  C22C30/00 ,  F01D5/186 ,  F01D5/187 ,  F02C6/00 ,  F05D2260/201 ,  F05D2260/202 ,  Y10S60/909

Abstract: A Ni-base superalloy consisting essentially of, by weight: 0.05 to 0.20% C, 20 to 25% Co, 15 to 25% Cr, 1.0 to 3.0% Al, 1.0 to 3.0% Ti, 1.0 to 3.0% Nb, 5 to 10% W, and at least 42.5% Ni, the combination of the [Al+Ti] and tungsten contents being determined as shown in FIG. 5. This superalloy has a high thermal-fatigue resistance, a great high-temperature strength, particularly, a great creep rupture strength, and a good weldability. The superalloy is used to form gas turbine nozzles, which are employed in a gas turbine. Using such a gas turbine, a combined power generating system is built.

Abstract translation: 一种Ni基超合金，其主要由以重量计：C：0.05〜0.20％，Co：20〜25％，Cr：15〜25％，Al：1.0〜3.0％，Ti：1.0〜3.0％，Nb：1.0〜 10％W和至少42.5％的Ni，[Al + Ti]和钨含量的组合如图6所示确定。 该超合金具有高耐热疲劳性，高温强度，特别是大的蠕变断裂强度和良好的可焊性。 超级合金用于形成用于燃气轮机中的燃气轮机喷嘴。 使用这种燃气轮机，构建组合发电系统。