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11.发明授权公开(公告)号：US06724854B1
公开(公告)日：2004-04-20
申请号：US10462113
申请日：2003-06-16
IPC分类号： G21C900
CPC分类号： G21C17/0225 , G21C19/307
摘要： A method for mitigating stress corrosion cracking in high temperature water includes introducing catalytic nanoparticles and dielectric nanoparticles to the high temperature water in an amount effective to reduce a electrochemical corrosion potential of the high temperature water.
摘要翻译： 减轻高温水中应力腐蚀开裂的方法包括将有效降低高温水的电化学腐蚀电位的量的催化纳米粒子和介电纳米粒子引入高温水中。
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12.发明授权Method of reducing corrosion potential and stress corrosion cracking susceptibility in nickel-base alloys 有权降低镍基合金中腐蚀电位和应力腐蚀开裂敏感性的方法公开(公告)号：US06548178B2
公开(公告)日：2003-04-15
申请号：US10255432
申请日：2002-09-26
IPC分类号： B32B1504
CPC分类号： G21C17/0225 , C22B23/06 , C23F11/18 , C23F11/185 , G21C19/307 , G21Y2002/103 , G21Y2004/304
摘要： A method for reducing in situ the electrochemical corrosion potential and susceptibility to stress corrosion cracking of a nickel-base alloy and boiling water nuclear reactor components formed therefrom when in contact with high temperature water. The method comprises the steps of: adding a metal hydride to the high temperature water; dissociating the metal hydride in the high temperature water to form a metal and at least one hydrogen ion; and reducing the concentration of the oxidizing species by reacting the hydrogen ions with an oxidizing species, thereby reducing in situ the electrochemical corrosion potential of the nickel-base alloy. The method may further include the steps of reacting the metal with oxygen present in the high temperature water to form an insoluble oxide and incorporating the metal into the surface of the nickel-base alloy, thereby reducing the electrical conductivity of the surface of the nickel-base alloy. A nickel-base alloy component having a reduced electrochemical corrosion potential is also disclosed.
摘要翻译： 一种当与高温水接触时，由其形成的镍基合金和沸水核反应堆部件的电化学腐蚀电位和应力腐蚀开裂的易受影响的方法。 该方法包括以下步骤：向高温水中加入金属氢化物; 在高温水中解离金属氢化物以形成金属和至少一种氢离子; 并且通过使氢离子与氧化物质反应来降低氧化物质的浓度，从而原位降低镍基合金的电化学腐蚀电位。 该方法还可以包括以下步骤：使金属与存在于高温水中的氧反应形成不溶性氧化物并将金属掺入镍基合金的表面，从而降低镍 - 镍合金表面的导电性， 基体合金。 还公开了具有降低的电化学腐蚀电位的镍基合金组分。
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13.发明授权Method of reducing corrosion potential and stress corrosion cracking susceptibility in nickel-based alloys 有权降低镍基合金中腐蚀电位和应力腐蚀开裂敏感性的方法公开(公告)号：US06488782B2
公开(公告)日：2002-12-03
申请号：US09681148
申请日：2001-01-29
IPC分类号： C23C2200
CPC分类号： G21C17/0225 , C22B23/06 , C23F11/18 , C23F11/185 , G21C19/307 , G21Y2002/103 , G21Y2004/304
摘要： Method for reducing in situ the electrochemical corrosion potential and susceptibility to stress corrosion cracking of a nickel-base alloy and boiling water nuclear reactor components formed therefrom when in contact with high temperature water. The method comprises the steps of: adding a metal hydride to the high temperature water; dissociating the metal hydride in the high temperature water to form a metal and at least one hydrogen ion; and reducing the concentration of the oxidizing species by reacting the hydrogen ions with an oxidizing species, thereby reducing in situ the electrochemical corrosion potential of the nickel-base alloy. The method may further include the steps of reacting the metal with oxygen present in the high temperature water to form an insoluble oxide and incorporating the metal into the surface of the nickel-base alloy, thereby reducing the electrical conductivity of the surface of the nickel-base alloy. A nickel-base alloy component having a reduced electrochemical corrosion potential is also disclosed.
摘要翻译： 一种当与高温水接触时，由其形成的镍基合金和沸水核反应堆组件的电化学腐蚀电位和应力腐蚀开裂的易感性降低的方法。 该方法包括以下步骤：向高温水中加入金属氢化物; 在高温水中解离金属氢化物以形成金属和至少一种氢离子; 并且通过使氢离子与氧化物质反应来降低氧化物质的浓度，从而原位降低镍基合金的电化学腐蚀电位。 该方法还可以包括以下步骤：使金属与存在于高温水中的氧反应形成不溶性氧化物并将金属掺入镍基合金的表面，从而降低镍基合金表面的导电性， 基体合金。 还公开了具有降低的电化学腐蚀电位的镍基合金组分。
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14.发明授权Metal alloy coating for mitigation of stress corrosion cracking of metal components in high-temperature water 失效金属合金涂层，用于缓解高温水中金属成分的应力腐蚀开裂
公开(公告)号：US5793830A
公开(公告)日：1998-08-11
申请号：US498029
申请日：1995-07-03
CPC分类号： G21C3/07 , G21C13/087 , G21Y2002/303 , G21Y2002/501 , G21Y2004/10 , G21Y2004/20 , Y02E30/40
摘要： A method for mitigating crack initiation and propagation on the surface of metal components in a water-cooled nuclear reactor. A metal coating having an electrically insulating outer layer is applied on the surfaces of IGSCC-susceptible reactor components. The preferred metal coating is a zirconium alloy with a zirconia outer layer. The presence of an electrically insulating layer on the surface of the metal components shifts the corrosion potential in the negative direction without the addition of hydrogen and in the absence of a noble metal catalyst. Corrosion potentials.ltoreq.-0.5 V.sub.SHE can be achieved even at high oxidant concentrations and in the absence of hydrogen.
摘要翻译： 一种减轻水冷核反应堆中金属组分表面裂纹引发和扩散的方法。 具有电绝缘外层的金属涂层施加在IGSCC敏感反应器部件的表面上。 优选的金属涂层是具有氧化锆外层的锆合金。 在金属组分的表面上存在电绝缘层使负极方向的腐蚀电位不加氢而在不存在贵金属催化剂的情况下移动。 即使在高氧化剂浓度和不存在氢气的情况下也可以实现腐蚀电位
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15.发明申请WELDING PROCESS AND CORROSION-RESISTANT FILLER ALLOY AND CONSUMABLES THEREFOR 审中-公开焊接工艺和耐腐蚀填料合金及其消耗品公开(公告)号：US20110240715A1
公开(公告)日：2011-10-06
申请号：US12751177
申请日：2010-03-31
CPC分类号： C22C19/055 , B23K35/304 , C22C19/053
摘要： A nickel-based alloy and welding processes and consumables that use the alloy as a weld filler metal to fabricate, weld overlay, and repair components, including components of nuclear power plant reactors that contact the hot coolant water of the reactor. The nickel-based alloy consists of, by weight, 26 to about 30% chromium, 2 to about 4% iron, 2 to about 4% manganese, 2 to about 3% niobium, 1 to about 3% molybdenum, not more than 0.6% titanium, not more than 0.03% carbon, not more than 0.05% nitrogen, not more than 0.6% aluminum, not more than 0.5% silicon, not more than 0.01% copper, not more than 0.02% phosphorus, not more than 0.01% sulfur, with the balance nickel and incidental impurities.
摘要翻译： 使用合金作为焊接填料金属的镍基合金和焊接工艺和消耗品，以制造，焊接覆盖层和修复部件，包括接触反应堆的热冷却水的核电站反应堆的部件。 镍基合金以重量计包含26至约30％的铬，2至约4％的铁，2至约4％的锰，2至约3％的铌，1至约3％的钼，不超过0.6 ％钛，不超过0.03％的碳，不超过0.05％的氮，不超过0.6％的铝，不超过0.5％的硅，不超过0.01％的铜，不超过0.02％的磷，不大于0.01％ 硫，余量为镍和杂质。
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16.发明授权Method of mitigating stress corrosion cracking of metals in high-temperature water by control of crack tip pH 失效通过控制裂纹尖端pH，缓解高温水中金属的应力腐蚀开裂的方法
公开(公告)号：US5673297A
公开(公告)日：1997-09-30
申请号：US509280
申请日：1995-07-31
申请人： Peter Louis Andresen
发明人： Peter Louis Andresen
IPC分类号： G21D1/00 , C23F11/18 , C23F15/00 , G21C13/087 , G21C17/02 , G21C17/022 , G21C19/28 , G21D3/08 , G21C9/00
CPC分类号： G21C17/0225 , C23F15/00 , G21C13/087 , G21C19/28 , G21Y2002/104 , G21Y2004/20 , G21Y2004/304 , G21Y2004/403 , Y02E30/40
摘要： A method for mitigating initiation or propagation of a crack in a surface of a metal component in a boiling water reactor. The method includes the step of injecting a solution or suspension of a pH-adjusting compound into the bulk water of the reactor. The compound has the property of changing the pH of high-temperature water inside the crack from a value outside a predetermined pH range (namely, pH 6.0 to 8.0) to a value within the predetermined pH range without causing any significant change of the bulk water pH. The growth rate of the crack when the crack pH is outside the predetermined pH range is greater than the growth rate of the crack when the crack pH is within the predetermined pH range.
摘要翻译： 一种用于减轻沸水反应器中金属组分表面中的裂纹的引发或扩散的方法。 该方法包括将pH调节化合物的溶液或悬浮液注入反应器的主体水中的步骤。 该化合物具有将裂纹内部的高温水的pH从规定的pH范围以外的值（即pH6.0〜8.0）变更为规定的pH范围内的值，而不会引起本体水的任何显着变化 pH值。 当裂纹pH在预定pH范围之外时，裂纹的生长速率大于裂纹pH在预定pH范围内时裂纹的生长速率。
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