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1. 发明授权

US07782994B2 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
标题翻译：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。

2. 发明申请

US20060266450A1 Cerium-containing austenitic nickel-base alloy having enhanced intergranular attack and stress corrosion cracking resistances, and preparation method thereof 审中-公开
标题翻译：具有增强的晶间侵蚀和应力腐蚀开裂电阻的含铈奥氏体镍基合金及其制备方法
公开(公告)号：US20060266450A1
公开(公告)日：2006-11-30
申请号：US11328711
申请日：2006-01-10
申请人： Oh Kwon , Yong-Sun Yi
发明人： Oh Kwon , Yong-Sun Yi
IPC分类号： C22C19/05 , C22F1/10
CPC分类号： C22C19/03 , C22F1/10
摘要： The present invention relates to a cerium-containing austenitic nickel-base alloy having enhanced IGA(intergranular attack) and SCC(stress corrosion cracking) resistances, and a preparation method thereof. The cerium-containing alloy according to the present invention is prepared by adding cerium to an austenitic nickel-base alloy, which is used as a material of steam generator tube in a nuclear power plant. The cerium-containing alloy has a refiner grain size than the conventional alloy without cerium, a semi-continuous distribution of intergranular carbides, and improved intergranular attack and stress corrosion cracking resistances in the environment of high temperature and base.
摘要翻译：本发明涉及具有增强的IGA（晶间侵蚀）和SCC（应力腐蚀开裂）电阻的铈的奥氏体镍基合金及其制备方法。根据本发明的含铈合金通过将铈用于在核电站中用作蒸汽发生器管材的奥氏体镍基合金来制备。该含铈合金的晶粒尺寸大于常规的不含铈的合金，颗粒间碳化物的半连续分布，以及高温和碱性环境下的晶间腐蚀和应力腐蚀开裂性的改善。

3. 发明申请

US20080093584A1 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
标题翻译：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。

4. 发明申请

US20060266449A1 Cerium-containing austenitic nickel-base alloy having enhanced intergranular attack and stress corrosion cracking resistances, and preparation method thereof 审中-公开
标题翻译：具有增强的晶间侵蚀和应力腐蚀开裂电阻的含铈奥氏体镍基合金及其制备方法
公开(公告)号：US20060266449A1
公开(公告)日：2006-11-30
申请号：US11135797
申请日：2005-05-24
申请人： Oh Kwon , Yong-sun Yi , Joung-Soo Kim
发明人： Oh Kwon , Yong-sun Yi , Joung-Soo Kim
IPC分类号： C22C19/05 , C22F1/10
CPC分类号： C22C19/03
摘要： The present invention relates to a cerium-containing austenitic nickel-base alloy having enhanced IGA(intergranular attack) and SCC(stress corrosion cracking) resistances, and a preparation method thereof. The cerium-containing alloy according to the present invention is prepared by adding cerium to an austenitic nickel-base alloy, which is used as a material of heat tubes of a steam generator in a nuclear power plant. The cerium-containing alloy has a refiner grain size than the conventional alloy without cerium, a semi-continuous distribution of intergranular carbides, and improved intergranular attack and stress corrosion cracking resistances in the environment of high temperature and base.
摘要翻译：本发明涉及具有增强的IGA（晶间侵蚀）和SCC（应力腐蚀开裂）电阻的铈的奥氏体镍基合金及其制备方法。根据本发明的含铈合金是通过将铈用于作为核电站中的蒸汽发生器的热管的材料的奥氏体镍基合金而制备的。该含铈合金的晶粒尺寸大于常规的不含铈的合金，颗粒间碳化物的半连续分布，以及高温和碱性环境下的晶间腐蚀和应力腐蚀开裂性的改善。

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