公开(公告)号：US06714618B1

公开(公告)日：2004-03-30

申请号：US09196104

申请日：1998-11-20

申请人： Samson Hettiarachchi ,  Robert J. Law ,  David P. Siegwarth ,  Thomas P. Diaz ,  Robert L. Cowan

发明人： Samson Hettiarachchi ,  Robert J. Law ,  David P. Siegwarth ,  Thomas P. Diaz ,  Robert L. Cowan

IPC分类号： G21C900

CPC分类号： G21C19/307 ,  C23F11/18 ,  G21Y2002/103 ,  G21Y2002/201 ,  G21Y2004/20 ,  G21Y2004/40

摘要： Method for controlling the amount of metal atoms deposited into an oxide layer present on a metal surface, which metal atoms increase the corrosion resistance of metal when present in the oxide film, wherein the metal surface is submerged in water at a selected temperature within the range of about to 200° to 550° F.; and a solution of a compound containing the metal which increases the corrosion resistance of the metal surface when present in the oxide film is injected into the water. The compound decomposes at the selected temperature to release atoms of the metal which incorporate in the oxide film at a desired loading.

公开(公告)号：US5625656A

公开(公告)日：1997-04-29

申请号：US482243

申请日：1995-06-07

申请人： Samson Hettiarachchi ,  Robert L. Cowan, II ,  Robert J. Law ,  Thomas P. Diaz

发明人： Samson Hettiarachchi ,  Robert L. Cowan, II ,  Robert J. Law ,  Thomas P. Diaz

IPC分类号： B01J37/03 ,  C23F11/08 ,  C23F11/18 ,  G01N17/02 ,  G21C3/07 ,  G21C17/02 ,  G21C17/022 ,  G21C19/28 ,  G21C19/30 ,  G21C19/307

CPC分类号： B01J37/031 ,  C23F11/08 ,  C23F11/18 ,  C23F15/00 ,  G01N17/02 ,  G21C17/02 ,  G21C17/022 ,  G21C17/0225 ,  G21C19/28 ,  G21C19/30 ,  G21C19/307 ,  G21C3/07 ,  G21Y2002/102 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2002/204 ,  G21Y2004/10 ,  G21Y2004/20 ,  G21Y2004/30 ,  G21Y2004/40 ,  Y02E30/40

摘要： A method for ensuring the distribution of noble metal in the reactor circuit during plant application without measuring the reactor water for noble metal content by chemical analysis. The method involves the measurement of electrochemical corrosion potential in an autoclave or a high-flow test section that is connected to the reactor water circuit through sample lines downstream of the injection port, preferably the point in the reactor circuit which is furthest from the injection port. If the noble metal flows into the autoclave or test section at these distant points in the reactor circuit, then the noble metal will deposit on the test specimens inside the autoclave or test section. After the noble metal has been injected for a predetermined duration, the electrochemical corrosion potential autoclave or test section is exposed to hydrogen water chemistry conditions and the electrochemical corrosion potentials of the specimens inside the autoclave or test section will be measured to determine the extent of their catalytic response. A good catalytic response indicates that the noble metal has reached the locations upstream where electrochemical corrosion potential is being measured.

摘要翻译： 一种用于确保在植物施用期间在反应器回路中分布贵金属的方法，而不通过化学分析测量贵金属含量的反应器水。 该方法包括在高压灭菌器或高流量测试部分中测量电化学腐蚀电位，该高压灭菌器或高流量试验部分通过注入口下游的取样管线连接到反应器水回路，优选地在反应器电路中与注射端口最远的点 。 如果贵金属在反应器电路中的这些远处流入高压釜或试验部分，则贵金属将沉积在高压釜或试验部分内的试样上。 在将贵金属注入预定时间后，将电化学腐蚀潜力的高压釜或试验部分暴露于氢水化学条件下，并测量高压釜或试验部分内的试样的电化学腐蚀电位，以确定它们的程度 催化反应。 良好的催化反应表明贵金属已经到达测量电化学腐蚀电位的上游位置。

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：US5349869A

公开(公告)日：1994-09-27

申请号：US43052

申请日：1993-04-05

申请人： Thomas P. Diaz ,  Gail E. Dunning ,  Ronald E. LeBlanc

发明人： Thomas P. Diaz ,  Gail E. Dunning ,  Ronald E. LeBlanc

IPC分类号： G01N1/28 ,  G01N3/00 ,  G01N3/06 ,  G01N3/20 ,  G01N17/00 ,  G01N19/00

CPC分类号： G01N3/20 ,  G01N2203/0066 ,  G01N2203/027 ,  G01N2203/0617 ,  G01N2203/0664

摘要： A double-cantilever beam crack growth sensor made from welded alloy, e.g., nickel-based alloy, and a method for fabricating such sensors. The method includes the steps of forming a strongback from a block of a first nickel-based alloy; depositing a suitable thickness of nickel-based weld alloy on top of the strongback to form a bi-metallic test block; welding a second block of the first nickel-based alloy on top of the weld alloy; and machining the final three-layer block to form a double-cantilever beam crack growth sensor consisting of cantilever beams made of the first nickel-based alloy, a crack growth section of weld alloy having a microstructure wherein the direction of dendritic growth is parallel to the direction of crack growth and a third section made of the first nickel-based alloy.

摘要翻译： 由焊接合金例如镍基合金制成的双悬臂梁裂纹扩展传感器，以及制造这种传感器的方法。 该方法包括从第一镍基合金的块形成强反射的步骤; 在强背上沉积适当厚度的镍基焊接合金以形成双金属试块; 在焊接合金的顶部焊接第一镍基合金的第二块; 并加工最终的三层块以形成由第一镍基合金制成的悬臂梁组成的双悬臂梁裂纹扩展传感器，具有微结构的焊接合金的裂纹扩展部分，其中树枝状生长方向平行于 裂纹生长的方向和由第一镍基合金制成的第三部分。

公开(公告)号：US5013370A

公开(公告)日：1991-05-07

申请号：US548437

申请日：1990-07-02

申请人： Thomas P. Diaz

发明人： Thomas P. Diaz

IPC分类号： C21D1/00 ,  C21D9/08

CPC分类号： C21D1/00 ,  C21D9/08 ,  Y10S148/902

摘要： A metallic object is treated to produce tensile residual stress in a known localized area of the metallic object. A metallic object having at least one portion substantially free of tensile residual stress is provided, and a localized area adjacent to or a part of the tensile stress-free area is selected. The localized area is subjected to heating on one surface and cooling on the opposite surface. Upon cooling to ambient temperature, the known localized area has tensile residual stress. The localized area can have cracks formed therein by crack-promotion techniques, such as submersion in boiling magnesium chloride. The area can be tested by attaching electrodes and subjecting the area to a reversing direct current crack growth measurement procedure.

摘要翻译： 处理金属物体以在金属物体的已知局部区域中产生拉伸残余应力。 提供具有至少一个部分基本上没有拉伸残余应力的金属物体，并且选择与抗拉应力区域相邻或部分的局部区域。 局部区域在一个表面上进行加热并在相对的表面上冷却。 当冷却到环境温度时，已知的局部区域具有拉伸残余应力。 通过裂解促进技术，例如浸入沸腾的氯化镁中，局部区域可以形成裂缝。 可以通过连接电极并对该区域进行逆向直流裂纹扩展测量程序来测试该区域。