公开(公告)号：US5510080A

公开(公告)日：1996-04-23

申请号：US310410

申请日：1994-09-22

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

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

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

CPC分类号： F01D5/28 ,  C22C32/0026 ,  F02F7/0085 ,  F05C2201/0466 ,  Y02T50/672

摘要： 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.

摘要翻译： 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：US07588650B2

公开(公告)日：2009-09-15

申请号：US11082836

申请日：2005-03-18

申请人： Noboru Baba ,  Kazuya Nishi

发明人： Noboru Baba ,  Kazuya Nishi

IPC分类号： C22C19/07

CPC分类号： C22C19/07

摘要： A high-temperature member for use in a gas turbine, the member being formed from a new wear-resistant alloy having good wear resistance as well as good ductility, is disclosed. The member was developed to prevent wear and damage that occur due to vibration while the turbine is running. The high-temperature member for use in a gas turbine is formed from a new cobalt-based wear-resistant alloy which is composed of a cobalt-chromium matrix and refractory metals, with the content of hard particles (such as carbide) reduced. The refractory metals promote work hardening, thereby improving wear resistance. The reduced content of hard particles contributes to good ductility.

摘要翻译： 公开了一种用于燃气轮机的高温构件，该构件由具有良好耐磨性和良好延展性的新的耐磨合金形成。 该成员被开发以防止在涡轮机运行时由于振动而发生的磨损和损坏。 用于燃气轮机的高温部件由钴 - 铬基体和难熔金属组成的新型钴基耐磨合金形成，硬质粒子（如碳化物）的含量降低。 难熔金属促进加工硬化，从而提高耐磨性。 硬颗粒的含量减少有助于良好的延展性。

公开(公告)号：US20090317286A1

公开(公告)日：2009-12-24

申请号：US10914283

申请日：2004-08-10

申请人： Kazuya Nishi

发明人： Kazuya Nishi

IPC分类号： C22C19/07 ,  B24B39/00

CPC分类号： C22C19/07 ,  C21D7/06 ,  F01D5/28 ,  F01D5/286 ,  F01D9/023 ,  Y10T29/479

摘要： A high-temperature member for use in a gas turbine is formed from a cobalt-based alloy comprising 15-35 wt % of chromium; 0.02-1.5 wt % of silicon; 0.01-0.2 wt % of carbon; at least one kind of metal selected from the group consisting of niobium, tungsten, tantalum and rhenium, the total content of these four metals being controlled not to exceed 10% by atomic ratio of the entirety of the alloy excluding carbon; and at least one metal selected from the group consisting of nickel, manganese and iron, the total content of these metals being within a range of 1-9 wt %, the total content of nickel being controlled not to exceed 5 wt %, and the cobalt-based alloy having both of excellent resistance due to work hardening of the matrix and excellent ductility under room temperature. Then, in order to improve the high-temperature wear resistance, a pre-hardened layer is formed in the surface portion of the member by shot peening

摘要翻译： 用于燃气轮机的高温构件由包含15-35重量％的铬的钴基合金形成; 0.02-1.5重量％的硅; 0.01-0.2重量％的碳; 选自铌，钨，钽和铼中的至少一种金属，这四种金属的总含量被控制为不超过不包括碳的整个合金的原子比的10％; 和选自镍，锰和铁的至少一种金属，这些金属的总含量在1-9重量％的范围内，镍的总含量不超过5重量％，并且 钴基合金具有由于基体的加工硬化而具有优异的电阻和在室温下具有优异的延展性。 然后，为了提高高温耐磨性，通过喷丸硬化在构件的表面部分形成预硬化层

公开(公告)号：US20090295518A1

公开(公告)日：2009-12-03

申请号：US12473982

申请日：2009-05-28

申请人： Kazuya Nishi ,  Yasuhisa Aono

发明人： Kazuya Nishi ,  Yasuhisa Aono

IPC分类号： H01F7/06 ,  B22F1/02 ,  C21D1/00 ,  B22F3/02 ,  B22F3/24

CPC分类号： H01F1/20 ,  B22F2003/248 ,  B22F2009/0828 ,  B22F2998/10 ,  C22C33/0257 ,  C22C2202/02 ,  H01F1/22 ,  H01F1/24 ,  H01F41/0246 ,  Y10T428/12181 ,  B22F9/082 ,  B22F9/023 ,  B22F1/02 ,  B22F3/02 ,  B22F3/24

摘要： A water atomized Fe powder for a magnetic compact reduced in deformation resistance during molding and annealing temperature for removing strains is provided. A compact having improved magnetic properties is also provided. The water atomized powder containing at least one element selected from Nb, Ta, Ti, Zr and V in an amount of 0.001-0.03 atom % is soft magnetic and has a precipitation in the matrix, which is composed of at least one element selected from Nb, Ta, Ti, Zr and V and oxygen as a main component and has an average size of 0.02-0.5 μm. Disclosed is a method for manufacturing a soft magnetic powder includes adding at least one element selected from Nb, Ta, Ti, Zr and V, and annealing in a hydrogen-containing reduction atmosphere. This method decrease gaseous impurities, particularly oxygen, and defuse it, to improve the magnetic properties of the powder and compact.

摘要翻译： 提供了一种用于磁性结合体的水雾化Fe粉末，在模制期间降低了变形阻力，并且提供了用于去除应变的退火温度。 还提供了具有改善的磁性能的压块。 含有0.001-0.03原子％的选自Nb，Ta，Ti，Zr和V中的至少一种元素的水雾化粉末是软磁性的，并且在基体中具有沉淀，该沉淀物由至少一种选自 Nb，Ta，Ti，Zr和V，氧为主要成分，平均粒径为0.02-0.5μm。 公开了一种制造软磁性粉末的方法，包括添加至少一种选自Nb，Ta，Ti，Zr和V的元素，并在含氢还原气氛中进行退火。 该方法减少了气体杂质，特别是氧气，并使其易于除去，从而提高了粉末的磁性能和致密性。