公开(公告)号：US5465281A

公开(公告)日：1995-11-07

申请号：US226153

申请日：1994-04-11

申请人： Peter L. Andresen ,  Young J. Kim

发明人： Peter L. Andresen ,  Young J. Kim

IPC分类号： G21C21/00 ,  C23C4/10 ,  C23C30/00 ,  G21C3/07 ,  G21C13/02 ,  G21C13/087 ,  G21D1/00 ,  G21C9/00

CPC分类号： G21C3/07 ,  C23C4/11 ,  G21C13/02 ,  G21C13/087 ,  G21Y2002/103 ,  G21Y2002/501 ,  G21Y2004/10 ,  G21Y2004/20 ,  G21Y2004/303 ,  Y02E30/40 ,  Y02T50/67

摘要： A method for mitigating crack initiation and propagation on the surface of metal components in a water-cooled nuclear reactor. An electrically insulating coating is applied on the surfaces of IGSCC-susceptible reactor components. The preferred electrically insulating material is yttria-stabilized zirconia. The presence of an electrically insulating coating 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 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。 在IGSCC敏感反应器部件的表面上施加电绝缘涂层。 优选的电绝缘材料是氧化钇稳定的氧化锆。 在金属组分的表面上存在电绝缘涂层将腐蚀电位沿负方向移动，而不加入氢气并且在不存在贵金属催化剂的情况下。 即使在高氧化剂浓度和不存在氢的情况下也可以实现腐蚀电位

公开(公告)号：US5774516A

公开(公告)日：1998-06-30

申请号：US698178

申请日：1996-08-15

申请人： Samson Hettiarachchi ,  Young J. Kim ,  Peter L. Andresen ,  Thomas P. Diaz

发明人： Samson Hettiarachchi ,  Young J. Kim ,  Peter L. Andresen ,  Thomas P. Diaz

IPC分类号： G21D1/00 ,  B01J37/03 ,  C23C8/80 ,  C23C12/00 ,  C23F11/08 ,  C23F11/18 ,  G01N17/02 ,  G21C17/02 ,  G21C17/022 ,  G21C19/28 ,  G21C19/30 ,  G21C19/307 ,  G21C9/00

CPC分类号： G21C17/0225 ,  B01J37/031 ,  C23C12/00 ,  C23C8/80 ,  C23F11/08 ,  C23F11/18 ,  G01N17/02 ,  G21C17/02 ,  G21C19/28 ,  G21C19/30 ,  G21C19/307 ,  G21C17/022 ,  G21Y2002/102 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2002/201 ,  G21Y2002/204 ,  G21Y2004/10 ,  G21Y2004/101 ,  G21Y2004/20 ,  G21Y2004/30 ,  G21Y2004/302 ,  G21Y2004/40

摘要： A method for mitigating general corrosion and crack initiation and growth on the surface of a metal components in a water-cooled nuclear reactor. A compound containing a non-noble metal such as zirconium or titanium is injected into the water of the reactor in the form of a solution or suspension. This compound decomposes under reactor thermal conditions to release ions or atoms of the non-noble metal which incorporate in the surfaces of the components, including the interior surfaces of any cracks formed therein. The preferred compounds are zirconium compounds such as zirconium acetylacetonate, zirconium nitrate and zirconyl nitrate. Zirconium incorporated in the oxided surface of a metal component will reduce the electrochemical corrosion potential at the surface to a level below the critical potential to protect against intergranular stress corrosion cracking without the addition of hydrogen.

摘要翻译： 一种减轻水冷核反应堆中金属组分表面的一般腐蚀和裂纹开始和生长的方法。 含有非贵金属如锆或钛的化合物以溶液或悬浮液的形式注入反应器的水中。 该化合物在反应器热条件下分解以释放非贵金属的离子或原子，其结合在组分的表面中，包括其中形成的任何裂纹的内表面。 优选的化合物是锆化合物，例如乙酰丙酮酸锆，硝酸锆和硝酸氧锆。 结合在金属部件的氧化表面中的锆将使表面处的电化学腐蚀电位降低到低于临界电位的水平，以防止在不加氢的情况下防止晶间应力腐蚀开裂。

公开(公告)号：US5608766A

公开(公告)日：1997-03-04

申请号：US322253

申请日：1994-10-13

申请人： Peter L. Andresen ,  Samson Hettiarachchi ,  Young J. Kim ,  Thomas P. Diaz

发明人： Peter L. Andresen ,  Samson Hettiarachchi ,  Young J. Kim ,  Thomas P. Diaz

IPC分类号： G21D1/00 ,  B01J37/03 ,  C23C8/80 ,  C23C12/00 ,  C23F11/08 ,  C23F11/18 ,  G01N17/02 ,  G21C17/02 ,  G21C17/022 ,  G21C19/28 ,  G21C19/30 ,  G21C19/307 ,  G21D3/08 ,  G21C9/00

CPC分类号： G21C17/0225 ,  B01J37/031 ,  C23C12/00 ,  C23C8/80 ,  C23F11/08 ,  C23F11/18 ,  G01N17/02 ,  G21C17/02 ,  G21C19/28 ,  G21C19/30 ,  G21C19/307 ,  G21C17/022 ,  G21Y2002/102 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2002/201 ,  G21Y2002/204 ,  G21Y2004/10 ,  G21Y2004/101 ,  G21Y2004/20 ,  G21Y2004/30 ,  G21Y2004/302 ,  G21Y2004/40

摘要： A method for improving the performance and longevity of coatings of metal deposited from aqueous solutions of inorganic, organic or oraganometallic metal compounds. The method involves co-deposition of noble metal or corrosion-inhibiting non-noble metal during growth of oxide film on a component made of alloy, e.g., stainless steels and nickel-based alloys. The result is a metal-doped oxide film having a relatively longer life in the reactor operating environment. In particular, incorporation of palladium into the film provides greatly increased catalytic life as compared to palladium coatings which lie on the oxide surface.

摘要翻译： 一种改善由无机，有机或金属金属化合物的水溶液沉积的金属涂层的性能和寿命的方法。 该方法包括在由诸如不锈钢和镍基合金的合金制成的部件上氧化膜生长期间共沉积贵金属或腐蚀抑制非贵金属。 结果是在反应器操作环境中具有相对较长寿命的金属掺杂氧化物膜。 特别地，与位于氧化物表面上的钯涂层相比，将钯引入膜中提供了大大增加的催化寿命。

公开(公告)号：US5581588A

公开(公告)日：1996-12-03

申请号：US494050

申请日：1995-06-23

申请人： Peter L. Andresen

发明人： Peter L. Andresen

IPC分类号： G21C5/00 ,  C23C4/10 ,  C23C30/00 ,  C23F11/00 ,  C23F15/00 ,  G21C3/06 ,  G21C13/08 ,  G21C13/087 ,  G21C17/022 ,  G21D1/00 ,  G21C9/00

CPC分类号： G21C17/0225 ,  C23F11/00 ,  G21C13/087 ,  G21Y2002/104 ,  G21Y2004/304 ,  G21Y2004/403

摘要： A method for mitigating crack initiation and propagation on the surface of metal components in a water-cooled nuclear reactor. An electrically insulating coating doped with a noble metal is applied on the surfaces of IGSCC-susceptible reactor components. The preferred electrically insulating material is yttria-stabilized zirconia doped with palladium or platinum. The presence of an electrically insulating coating on the surface of the metal components shifts the corrosion potential in the negative direction without the addition of hydrogen. Corrosion potentials .ltoreq.-0.5 V.sub.SHE are believed to be achievable even at high oxidant concentrations and in the absence of hydrogen, although the coatings are believed to be particularly suited to applications where a reductant, such as hydrogen, is present.

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。 掺杂有贵金属的电绝缘涂层施加在IGSCC敏感反应器部件的表面上。 优选的电绝缘材料是掺杂有钯或铂的氧化钇稳定的氧化锆。 在金属组分的表面上存在电绝缘涂层使腐蚀电位在负方向移动而不加氢。 据信即使在高氧化剂浓度和不存在氢的情况下，腐蚀电位

公开(公告)号：US5386442A

公开(公告)日：1995-01-31

申请号：US83140

申请日：1993-06-25

申请人： Thomas P. Diaz ,  Peter L. Andresen ,  William R. Catlin ,  Gary W. Contreras ,  Ronald E. De Lair ,  William D. Miller ,  Harvey D. Solomon ,  Daniel Weinstein

发明人： Thomas P. Diaz ,  Peter L. Andresen ,  William R. Catlin ,  Gary W. Contreras ,  Ronald E. De Lair ,  William D. Miller ,  Harvey D. Solomon ,  Daniel Weinstein

IPC分类号： G01L9/14 ,  G01N3/00 ,  G01N3/02 ,  G01N3/06 ,  G01N3/10 ,  G01N3/20 ,  G01N3/32 ,  G01N17/00 ,  G21C17/00 ,  G21C17/003 ,  G21D1/00

CPC分类号： G01N17/00 ,  G01N3/10 ,  G01N3/20 ,  G21C17/00 ,  G01N2203/0066 ,  G01N2203/0232 ,  G01N2203/024 ,  G01N2203/0244 ,  G01N2203/027 ,  G01N2203/0617 ,  G21Y2002/201 ,  G21Y2004/40

摘要： An apparatus and a method for measuring and controlling the crack growth rate within a double cantilever beam type test specimen. The arms of the test specimen are fitted with a pressure-actuated bellows to induce a predetermined load and with a sensing assembly to provide feedback on the amount of beam displacement resulting from application of that load. In this manner a loaded test specimen may be remotely mounted and adjusted inside the reactor pressure vessel or piping of a nuclear reactor in order to maintain a stress intensity which is constant or which varies in a predetermined manner for inducing stress corrosion cracking or corrosion fatigue in the specimen.

摘要翻译： 一种用于测量和控制双悬臂梁型试样中裂纹扩展速率的装置和方法。 测试样本的臂装有压力致动的波纹管以引起预定的负载并且与感测组件一起提供关于由施加该负载导致的光束位移量的反馈。 以这种方式，负载的试样可以在反应堆压力容器或核反应堆的管道内远程安装和调节，以保持应力强度，其为常数或以预定方式变化以引起应力腐蚀开裂或腐蚀疲劳 标本。

公开(公告)号：US5147602A

公开(公告)日：1992-09-15

申请号：US703325

申请日：1991-05-20

申请人： Peter L. Andresen ,  Leonard W. Niedrach

发明人： Peter L. Andresen ,  Leonard W. Niedrach

IPC分类号： C22C38/00 ,  C22C30/00 ,  C22C38/58

CPC分类号： C22C30/00

摘要： A high-chromium stainless steel alloy having improved resistance to stress corrosion cracking in high temperature water is comprised of, in weight percent; about 22 to 32 percent chromium, about 16 to 40 percent nickel, up to about 10 percent manganese, up to about 0.06 percent carbon, and the balance substantially iron. A preferred high-chromium alloy is further comprised of about 2 to 9 weight percent of a metal from the group consisting of titanium, niobium, tantalum, and mixtures thereof. Another preferred high-chromium alloy is further comprised of a platinum group metal in an effective amount to reduce the corrosion potential of the alloy in high-temperature water provided with hydrogen.

公开(公告)号：US5135709A

公开(公告)日：1992-08-04

申请号：US698885

申请日：1991-05-13

申请人： Peter L. Andresen ,  Leonard W. Niedrach

发明人： Peter L. Andresen ,  Leonard W. Niedrach

IPC分类号： C23F15/00 ,  C22C19/03 ,  C22C19/07 ,  C22C38/00 ,  G21C13/087 ,  G21C17/022 ,  G21C19/307 ,  G21D1/00

CPC分类号： G21C17/0225 ,  G21C13/087 ,  G21C19/307 ,  Y02E30/40

摘要： A method for lowering the corrosion potential on components formed from carbon steel, alloy steel, stainless steel, nickel based alloys, or cobalt based alloys, and exposed to high-temperature water comprised of oxidizing species, comprising: providing a reducing species in the high temperature water that can combine with the oxidizing species, and forming the component to have a catalytic layer of a platinum group metal.