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    • 3. 发明授权
    • System and method for determining noble metal concentrations in reactor coolant streams
    • 用于测定反应堆冷却剂流中贵金属浓度的系统和方法
    • US06440297B1
    • 2002-08-27
    • US09739181
    • 2000-12-18
    • Young Jin KimJohn Yupeng GuiPeter Louis AndresenThomas Pompilio DiazSamson Hettiarachchi
    • Young Jin KimJohn Yupeng GuiPeter Louis AndresenThomas Pompilio DiazSamson Hettiarachchi
    • G01N2726
    • G21C17/0225G01N27/423G01N33/1813G21C17/022G21Y2002/103
    • A system and method for determining a noble metal concentration in a sample that is representative of a noble metal concentration in either a volume of water circulated through a nuclear reactor or a surface of a nuclear reactor component exposed to the volume of water. The system comprises: at least one standard having a predetermined concentration of the noble metal disposed its surface; an electrolyte bath for immersing one of the sample and the standard therein; an auxiliary electrode connectable to one of the sample and the standard; a power source connectable to a reference electrode and one of the standard and the sample; and a current measurement device capable of measuring a current passing between the auxiliary electrode and one of the sample and the standard. The power source is capable of providing a potential across the reference electrode and one of the sample and the standard, The noble metal concentration in the sample is determined relative to the predetermined concentration in the standard by comparing a sample current passing through the sample to a standard current passing through the standard.
    • 一种用于确定样品中贵金属浓度的系统和方法,其代表在通过核反应堆循环的水的体积或暴露于水体积的核反应堆组件的表面中的贵金属浓度。 该系统包括:具有预定浓度的贵金属的至少一个标准物,其设置在其表面上; 用于将样品和标准物中的一种浸入其中的电解质浴; 可连接到样品和标准品之一的辅助电极; 可连接到参考电极和标准品和样品之一的电源; 以及能够测量辅助电极和样品之一以及标准品之间的电流的电流测量装置。 电源能够在参考电极和样品和标准品之间提供电位。通过将通过样品的样品电流与一个样品的比较来确定样品中的贵金属浓度相对于标准中的预定浓度 标准电流通过标准。
    • 6. 发明授权
    • Metal hydride addition for reducing corrosion potential of structural
steel
    • 金属氢化物添加用于降低结构钢的腐蚀电位
    • US06024805A
    • 2000-02-15
    • US968970
    • 1997-11-12
    • Young Jin KimPeter Louis AndresenGeorge Charles Sogoian
    • Young Jin KimPeter Louis AndresenGeorge Charles Sogoian
    • C23C26/00C23F11/18G21C17/022C23C8/00
    • G21C17/0225C23C26/00C23F11/185
    • A method for reducing the corrosion potential of steel vessels and piping used in nuclear reactors, in particular steel vessels and piping carrying high temperature water and/or steam which has a concentration of oxygen therein. A metal hydride is added to the water, the hydrogen of such metal hydride combining with oxidizing agents, typically oxygen, present in the water to reduce the concentration of such oxidizing agents. In the preferred embodiment the metal of the metal hydride is a metal that is capable of reacting with oxygen to form a substantially non-water soluble and substantially electrically insulating compound on the surface of the steel, and in particular is one that may react with and become deposited or incorporated into a pre-existing thin oxide film layer on the surface of the steel to thereby render such thin oxide layer substantially non-electrically conducting.
    • 一种用于降低核反应堆,特别是含有其中具有氧浓度的高温水和/或蒸汽的钢容器和管道的钢管和管道的腐蚀电位的方法。 将金属氢化物加入到水中,这种金属氢化物的氢与存在于水中的氧化剂(通常为氧)结合,以降低这种氧化剂的浓度。 在优选的实施方案中,金属氢化物的金属是能够与氧反应以在钢的表面上形成基本上非水溶性且基本上电绝缘的化合物的金属,特别是可与 变得沉积或并入到钢表面上的预先存在的薄氧化膜层中,从而使这种薄氧化层基本上不导电。
    • 10. 发明授权
    • Method of reducing corrosion potential and stress corrosion cracking susceptibility in nickel-base alloys
    • 降低镍基合金中腐蚀电位和应力腐蚀开裂敏感性的方法
    • US06548178B2
    • 2003-04-15
    • US10255432
    • 2002-09-26
    • Young Jin KimPeter Louis Andresen
    • Young Jin KimPeter Louis Andresen
    • B32B1504
    • G21C17/0225C22B23/06C23F11/18C23F11/185G21C19/307G21Y2002/103G21Y2004/304
    • 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.
    • 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。