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    Ceramics-coated heat resisting alloy member
    2.
    发明授权
    Ceramics-coated heat resisting alloy member 失效
    陶瓷涂层耐热合金构件

    公开(公告)号：US5209645A

    公开(公告)日：1993-05-11

    申请号：US538759

    申请日：1990-06-15

    申请人： Yoshitaka Kojima ,  Akira Mebata ,  Noriyuki Ohnaka ,  Akihiko Chiba ,  Ryoichiro Ohoshima ,  Norio Watanabe ,  Yukiyoshi Hara

    发明人： Yoshitaka Kojima ,  Akira Mebata ,  Noriyuki Ohnaka ,  Akihiko Chiba ,  Ryoichiro Ohoshima ,  Norio Watanabe ,  Yukiyoshi Hara

    IPC分类号： C23C4/02 ,  C23C28/00

    CPC分类号： C23C4/02 ,  C23C28/00 ,  Y10T428/12542

    摘要： A gas turbine bucket and a gas turbine nozzle applied with a ceramic coating comprises a base material of the bucket and the nozzle made of a heat resisting alloy; a plurality of coating layers for the front portion consisting of, a mixture layer which comprises a ceramic material and metal and which is formed on the base material, an alloy layer which comprises an alloy material exhibiting excellent resistance to high temperature oxidation and corrosion and which is formed on the mixture layer, and a ceramic layer which comprises ceramic material and formed on the alloy layer. Such ceramic coating has a satisfactory thermal barrier effect on the base material of the gas turbine bucket and nozzle.

    摘要翻译： 应用陶瓷涂层的燃气轮机桶和燃气轮机喷嘴包括铲斗的基材和由耐热合金制成的喷嘴; 用于前部的多个涂层由包含陶瓷材料和金属的复合层组成，并且形成在基材上，合金层包括耐高温氧化和腐蚀性优异的合金材料，并且其中 形成在复合层上，并且在合金层上形成陶瓷层，该陶瓷层包含陶瓷材料。 这种陶瓷涂层对燃气涡轮机桶和喷嘴的基材具有令人满意的隔热效果。

    Method and apparatus for measuring degree of corrosion of metal materials
    3.
    发明授权
    Method and apparatus for measuring degree of corrosion of metal materials 失效
    测量金属材料腐蚀程度的方法和装置

    公开(公告)号：US5519330A

    公开(公告)日：1996-05-21

    申请号：US126768

    申请日：1993-09-27

    申请人： Hiroshi Yamauchi ,  Masanori Sakai ,  Katsumi Mabuchi ,  Takuya Takahashi ,  Noriyuki Ohnaka ,  Shigeo Hattori

    发明人： Hiroshi Yamauchi ,  Masanori Sakai ,  Katsumi Mabuchi ,  Takuya Takahashi ,  Noriyuki Ohnaka ,  Shigeo Hattori

    IPC分类号： G01N17/02 ,  G01N27/06

    CPC分类号： B82Y15/00 ,  G01N17/02 ,  Y10S977/852

    摘要： A corrosion degree measuring method capable of field measurement for intergranular corrosion, particularly the sensitization degree, of the plant's structural materials in a narrow space. The metal electrode made of a material being measured and the counter electrode to the metal electrode are immersed in an electrolytic solution. A voltage is applied to the metal electrode in the anodic direction so as to raise the potential of the metal electrode up to the passive state potential and to keep the metal electrode at the passive state potential. The passive state potential is used as a reference potential, and a pulse-like potential signal is applied to the metal electrode in the cathodic direction. At the time of the application of the pulse potential signal, a current between the metal electrode and the counter electrode is measured, and the corrosion degree of the material being measured is determined from the intensity of the current.

    摘要翻译： 一种腐蚀度测量方法，能够在狭窄的空间内对植物的结构材料进行晶间腐蚀，特别是致敏程度的现场测量。 由被测量材料制成的金属电极和与金属电极对置的电极浸入电解液中。 在阳极方向上向金属电极施加电压，以将金属电极的电位升高到被动状态电位，并将金属电极保持在被动状态。 将被动状态电位用作参考电位，并且在阴极方向上向金属电极施加脉冲状电位信号。 在应用脉冲电位信号时，测量金属电极和对电极之间的电流，并根据电流强度确定测量材料的腐蚀程度。

    Method of evaluating corrosion resistance of metal material, method of designing alloy of high corrosion resistance, method of diagnosing corroded state of metal material, and method of operating plant
    8.
    发明授权
    Method of evaluating corrosion resistance of metal material, method of designing alloy of high corrosion resistance, method of diagnosing corroded state of metal material, and method of operating plant 失效
    金属材料耐腐蚀性评价方法，耐腐蚀性合金的设计方法，金属材料腐蚀状态的诊断方法及操作方法

    公开(公告)号：US5901071A

    公开(公告)日：1999-05-04

    申请号：US496586

    申请日：1995-06-28

    申请人： Masanori Sakai ,  Noriyuki Ohnaka ,  Yuichi Ishikawa ,  Haruo Fujimori ,  Yusuke Isobe ,  Takuya Takahashi

    发明人： Masanori Sakai ,  Noriyuki Ohnaka ,  Yuichi Ishikawa ,  Haruo Fujimori ,  Yusuke Isobe ,  Takuya Takahashi

    IPC分类号： C23F11/18 ,  C23F15/00 ,  G01N17/00 ,  G01N27/26 ,  G01N27/416 ,  G01N33/20 ,  G21D1/00 ,  G06F17/00

    CPC分类号： G01N1/04 ,  G01N17/00

    摘要： The composition of an alloy is inhomogeneous, so that the Fermi level of electrons in the surface of the alloy differs depending upon positions. It is accordingly considered that a part susceptible to corrosion and a part less susceptible thereto will coexist in the alloy. The corrosion rate of the alloy is indicated as the exponential function of a potential difference (.DELTA..PHI..sub.H) within an electric double layer. The potential difference remains unchanged as long as the Fermi level lies within the forbidden band of the electrons. However, in a range in which the Fermi level falls within the valence band of the electrons, the lowering thereof leads to the increase of the potential difference. Accordingly, a corrosion-resisting alloy is designed in accordance with the following guidelines: a) The electron energy level (Ev) of the valence band is low, b) an oxide film to be formed on the alloy is an n-type semiconductor, c) a band gap (Ec-Ev) is wide where Ec denotes the conduction band of the electrons, and d) a flatband potential (E.sub.f1) is low. Further, the operation of a plant and the evaluation of a corrosional damage can be based on such a theory.

    摘要翻译： 合金的组成是不均匀的，使得合金表面中的费米子电子水平根据位置而不同。 因此，考虑到易于腐蚀的部分和对其不太敏感的部分将在合金中共存。 合金的腐蚀速率表示为电双层内的电位差（DELTA PHI H）的指数函数。 只要费米能级位于电子的禁带内，电位差就保持不变。 然而，在费米能级落在电子的价带内的范围内，其降低导致电位差的增加。 因此，根据以下准则设计耐腐蚀合金：a）价带的电子能级（Ev）低，b）在合金上形成的氧化膜是n型半导体， c）带隙（Ec-Ev）宽，其中Ec表示电子的导带，d）扁平带电位（Ef1）低。 此外，植物的操作和腐蚀性损害的评估可以基于这样的理论。

    Boiling water reactor and its operating method
    9.
    发明授权
    Boiling water reactor and its operating method 失效
    沸水反应堆及其操作方法

    公开(公告)号：US5892805A

    公开(公告)日：1999-04-06

    申请号：US683980

    申请日：1996-07-22

    申请人： Kouichi Yamane ,  Yamato Asakura ,  Katsumi Ohsumi ,  Kenichi Ito ,  Noriyuki Ohnaka ,  Naohito Uetake ,  Motohiro Aizawa ,  Akira Ichimura

    发明人： Kouichi Yamane ,  Yamato Asakura ,  Katsumi Ohsumi ,  Kenichi Ito ,  Noriyuki Ohnaka ,  Naohito Uetake ,  Motohiro Aizawa ,  Akira Ichimura

    IPC分类号： G21D1/00 ,  G21C19/307 ,  G21D3/00 ,  G21D3/08

    CPC分类号： G21C19/307 ,  G21Y2002/103 ,  G21Y2002/303 ,  G21Y2004/40

    摘要： A reactor water clean-up system is provided with a first filter demineralizer having a filter resin containing an alkali substance and a second filter demineralizer with a filter resin not containing an alkali substance. The reactor water is supplied to the first filter demineralizer during the term from the starting operation of the preoperating test of the nuclear reactor and of each fuel cycle to 2000 EFPH. The alkali substance contained in the filter resin is guided into the nuclear reactor to change the pH of the reactor water in the nuclear reactor to the weak alkali side. The Cr quantity which is taken in the oxide film of the fuel cladding tube surface is reduced. After 2000 EFPH from the starting operation, the supply of the reactor water to the first filter demineralizer is stopped, and then, the reactor water is supplied to the second filter demineralizer.

    摘要翻译： 反应器水净化系统设有具有含有碱性物质的过滤树脂的第一过滤器软化器和具有不含碱性物质的过滤树脂的第二过滤器软化器。 在从核反应堆的初步试验和每个燃料循环的启动操作到2000年的EFPH期间，将反应器水供应到第一过滤器软化器。 包含在过滤树脂中的碱性物质被引导到核反应堆中以将核反应堆中的反应器水的pH改变为弱碱侧。 在燃料包壳管表面的氧化膜中摄取的Cr量减少。 从启动操作开始2000次EFPH之后，停止向第一过滤脱盐装置供应反应器水，然后将反应器水供给到第二过滤器脱盐装置。