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    Inhibitor of lead-induced stress corrosion cracking comprising nickel boride in secondary side of steam generator tubes in nuclear power plants and inhibition method using the same
    4.
    发明授权
    Inhibitor of lead-induced stress corrosion cracking comprising nickel boride in secondary side of steam generator tubes in nuclear power plants and inhibition method using the same 有权
    包含核电厂蒸汽发生器管二次侧的硼化镍的铅诱导应力腐蚀开裂抑制剂及使用其的抑制方法

    公开(公告)号：US07782994B2

    公开(公告)日：2010-08-24

    申请号：US11726932

    申请日：2007-03-23

    申请人： Oh-Chul Kwon ,  Yong-Sun Yi ,  Hong-Pyo Kim ,  Joung-Soo Kim

    发明人： Oh-Chul Kwon ,  Yong-Sun Yi ,  Hong-Pyo Kim ,  Joung-Soo Kim

    IPC分类号： C23F11/06 ,  B05D1/00

    CPC分类号： F22B37/107 ,  F22B37/002

    摘要： This invention relates to an inhibitor of lead-induced stress corrosion cracking including nickel boride in the secondary side of steam generator tubes in nuclear power plants and an inhibition method using the same, and more particularly, to an inhibitor of lead-induced stress corrosion cracking, in which nickel boride is added to secondary side cooling water of the steam generator in an amount of 0.2˜6 g/l, and to an inhibition method using the same. According to this invention, when the inhibitor of lead-induced stress corrosion cracking is added to the secondary side of the steam generator tube in nuclear power plants, stress corrosion cracking of the tubes, which occurs in the lead-containing neutral or caustic solution, and a crack growth rate are decreased, thus increasing elongation. Further, a stress corrosion cracking ratio is decreased, and therefore the stress corrosion cracking resistance of metal or alloy can be improved. Therefore, nickel boride can be usefully used as an inhibitor of lead-induced stress corrosion cracking of the steam generator tubes in nuclear power plants.

    摘要翻译： 本发明涉及核动力装置的蒸汽发生器管的次级侧的铅诱导应力腐蚀开裂抑制剂及其抑制方法，特别涉及铅诱导应力腐蚀开裂抑制剂 ，其中将镍硼化物以0.2〜6g / l的量添加到蒸汽发生器的二次侧冷却水中，以及使用其的抑制方法。 根据本发明，当在核电厂的蒸汽发生器管的二次侧添加铅诱导应力腐蚀开裂的抑制剂时，在含铅中性或苛性碱溶液中发生管的应力腐蚀开裂， 裂纹扩展速率降低，伸长率增加。 此外，应力腐蚀开裂率降低，因此可以提高金属或合金的抗应力腐蚀开裂性。 因此，硼化镍可有效地用作核电厂蒸汽发生器管的铅诱导应力腐蚀开裂的抑制剂。

    Method of preventing corrosion degradation using Ni or Ni-alloy plating
    5.
    发明授权
    Method of preventing corrosion degradation using Ni or Ni-alloy plating 有权
    使用Ni或Ni合金镀层防止腐蚀降解的方法

    公开(公告)号：US08075957B2

    公开(公告)日：2011-12-13

    申请号：US12250927

    申请日：2008-10-14

    申请人： Joung Soo Kim ,  Dong Jin Kim ,  Myong Jin Kim ,  Hong Pyo Kim

    发明人： Joung Soo Kim ,  Dong Jin Kim ,  Myong Jin Kim ,  Hong Pyo Kim

    IPC分类号： B05D1/36

    CPC分类号： F28F19/06 ,  C23C18/32 ,  C25D5/14 ,  C25D5/50 ,  C25D7/04 ,  F22B37/025 ,  F22B37/107 ,  F28F9/16

    摘要： Disclosed herein is a method of preventing corrosion degradation in a defective region including an expansion transition region and/or an expansion region of a heat transfer tube of a steam generator in a nuclear power plant by using nickel (Ni) plating or nickel (Ni) alloy plating. The method can prevent various types of corrosion damage, such as pitting corrosion, abrasion, stress corrosion cracking, lead-induced stress corrosion cracking and the like, occurring during the operation of the steam generator, and particularly, pitting corrosion or primary and secondary stress corrosion cracking, so that the life span of the steam generator is increased, maintenance costs are reduced, and the operation rate of a nuclear power plant is increased, with the result that the unit cost of the production of electric power can be decreased, thereby improving economic efficiency. Further, the method can be usefully used to prevent the corrosion damage of parts and equipment of nuclear, hydroelectric or thermoelectric power plants or of petrochemical plants, and that of industrial and machine parts and equipment, and parts and equipment in a defense industry.

    摘要翻译： 本发明公开了一种通过使用镍（Ni）电镀或镍（Ni）在核电站中防止包括蒸汽发生器的传热管的膨胀过渡区域和/或膨胀区域的缺陷区域中的腐蚀劣化的方法， 合金电镀。 该方法可以防止在蒸汽发生器运行过程中发生的各种类型的腐蚀损伤，如点腐蚀，磨损，应力腐蚀开裂，铅引起的应力腐蚀开裂等，特别是点腐蚀或初级和次级应力 腐蚀开裂，使蒸汽发生器的寿命提高，维护成本降低，核电厂的运行率提高，从而可以降低电力生产的单位成本，从而 提高经济效益。 此外，该方法可有效地用于防止核能，水电或热电发电厂或石油化工厂以及国防工业和机械零件设备及零部件的设备的腐蚀损坏。

    METHOD OF PREVENTING CORROSION DEGRADATION USING NI OR NI-ALLOY PLATING
    6.
    发明申请
    METHOD OF PREVENTING CORROSION DEGRADATION USING NI OR NI-ALLOY PLATING 有权
    使用NI或NI-ALLOY镀层防止腐蚀降解的方法

    公开(公告)号：US20090252883A1

    公开(公告)日：2009-10-08

    申请号：US12250927

    申请日：2008-10-14

    申请人： Joung Soo Kim ,  Dong Jin Kim ,  Myong Jin Kim ,  Hong Pyo Kim

    发明人： Joung Soo Kim ,  Dong Jin Kim ,  Myong Jin Kim ,  Hong Pyo Kim

    IPC分类号： B05D1/18

    CPC分类号： F28F19/06 ,  C23C18/32 ,  C25D5/14 ,  C25D5/50 ,  C25D7/04 ,  F22B37/025 ,  F22B37/107 ,  F28F9/16

    摘要： Disclosed herein is a method of preventing corrosion degradation in a defective region including an expansion transition region and/or an expansion region of a heat transfer tube of a steam generator in a nuclear power plant by using nickel (Ni) plating or nickel (Ni) alloy plating. The method can prevent various types of corrosion damage, such as pitting corrosion, abrasion, stress corrosion cracking, lead-induced stress corrosion cracking and the like, occurring during the operation of the steam generator, and particularly, pitting corrosion or primary and secondary stress corrosion cracking, so that the life span of the steam generator is increased, maintenance costs are reduced, and the operation rate of a nuclear power plant is increased, with the result that the unit cost of the production of electric power can be decreased, thereby improving economic efficiency. Further, the method can be usefully used to prevent the corrosion damage of parts and equipment of nuclear, hydroelectric or thermoelectric power plants or of petrochemical plants, and that of industrial and machine parts and equipment, and parts and equipment in a defense industry.

    摘要翻译： 本发明公开了一种通过使用镍（Ni）电镀或镍（Ni）在核电站中防止包括蒸汽发生器的传热管的膨胀过渡区域和/或膨胀区域的缺陷区域中的腐蚀劣化的方法， 合金电镀。 该方法可以防止在蒸汽发生器运行过程中发生的各种类型的腐蚀损伤，如点腐蚀，磨损，应力腐蚀开裂，铅引起的应力腐蚀开裂等，特别是点腐蚀或初级和次级应力 腐蚀开裂，使蒸汽发生器的寿命提高，维护成本降低，核电厂的运行率提高，从而可以降低电力生产的单位成本，从而 提高经济效益。 此外，该方法可有效地用于防止核能，水电或热电发电厂或石油化工厂以及国防工业和机械零件设备及零部件的设备的腐蚀损坏。

    Inhibitor of lead-induced stress corrosion cracking comprising nickel boride in secondary side of steam generator tubes in nuclear power plants and inhibition method using the same
    7.
    发明申请
    Inhibitor of lead-induced stress corrosion cracking comprising nickel boride in secondary side of steam generator tubes in nuclear power plants and inhibition method using the same 有权
    包含核电厂蒸汽发生器管二次侧的硼化镍的铅诱导应力腐蚀开裂抑制剂及使用其的抑制方法

    公开(公告)号：US20080093584A1

    公开(公告)日：2008-04-24

    申请号：US11726932

    申请日：2007-03-23

    申请人： Oh-Chul Kwon ,  Yong-Sun Yi ,  Hong-Pyo Kim ,  Joung-Soo Kim

    发明人： Oh-Chul Kwon ,  Yong-Sun Yi ,  Hong-Pyo Kim ,  Joung-Soo Kim

    IPC分类号： C09K3/00 ,  C01B25/08 ,  C04B9/02

    CPC分类号： F22B37/107 ,  F22B37/002

    摘要： This invention relates to an inhibitor of lead-induced stress corrosion cracking including nickel boride in the secondary side of steam generator tubes in nuclear power plants and an inhibition method using the same, and more particularly, to an inhibitor of lead-induced stress corrosion cracking, in which nickel boride is added to secondary side cooling water of the steam generator in an amount of 0.2˜6 g/l, and to an inhibition method using the same. According to this invention, when the inhibitor of lead-induced stress corrosion cracking is added to the secondary side of the steam generator tube in nuclear power plants, stress corrosion cracking of the tubes, which occurs in the lead-containing neutral or caustic solution, and a crack growth rate are decreased, thus increasing elongation. Further, a stress corrosion cracking ratio is decreased, and therefore the stress corrosion cracking resistance of metal or alloy can be improved. Therefore, nickel boride can be usefully used as an inhibitor of lead-induced stress corrosion cracking of the steam generator tubes in nuclear power plants.

    摘要翻译： 本发明涉及核动力装置的蒸汽发生器管的次级侧的铅诱导应力腐蚀开裂抑制剂及其抑制方法，特别涉及铅诱导应力腐蚀开裂抑制剂 ，其中将镍硼化物以0.2〜6g / l的量添加到蒸汽发生器的二次侧冷却水中，并且使用其中的方法。 根据本发明，当在核电厂的蒸汽发生器管的二次侧添加铅诱导应力腐蚀开裂的抑制剂时，在含铅中性或苛性碱溶液中发生管的应力腐蚀开裂， 裂纹扩展速率降低，伸长率增加。 此外，应力腐蚀开裂率降低，因此可以提高金属或合金的抗应力腐蚀开裂性。 因此，硼化镍可有效地用作核电厂蒸汽发生器管的铅诱导应力腐蚀开裂的抑制剂。