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公开(公告)号：WO1997040210A1
公开(公告)日：1997-10-30
申请号：PCT/US1997006646
申请日：1997-04-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： GENERAL ELECTRIC COMPANY , HETTIARACHCHI, Samson
IPC: C23F11/08
CPC classification number: G21C17/0225 , B01J37/031 , C23F11/18 , G01N17/02 , G21C17/02 , G21C17/022 , G21C19/28 , G21C19/307 , G21Y2002/102 , G21Y2002/103 , G21Y2002/104 , G21Y2002/204 , G21Y2004/10 , G21Y2004/20 , G21Y2004/30 , G21Y2004/304 , G21Y2004/40 , Y10S376/90
Abstract: A method for reducing corrosion of metal components in a water cooled nuclear reactor. A compound containing a platinum group metal, e.g. palladium, is injected alone in small amounts into the high temperature water of the reactor in the form of a solution or suspension. This compound decomposes under reactor thermal conditions to release atoms of the metal in an amount sufficient when present on the metal components to reduce the electrochemical corrosion potential of the metal components to a level below the critical potential to protect against intergranular stress corrosion cracking.
Abstract translation: 一种降低水冷核反应堆中金属成分腐蚀的方法。 含有铂族金属的化合物，例如 钯以少量注入溶液或悬浮液形式的反应器的高温水中。 该化合物在反应器热条件下分解，以当存在于金属组分上时足以释放金属原子，以将金属组分的电化学腐蚀电势降低到低于临界电势以防止晶间应力腐蚀开裂的水平。
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2.发明申请MODIFICATION OF OXIDE FILM ELECTRICAL CONDUCTIVITY TO MAINTAIN LOW CORROSION POTENTIAL IN HIGH-TEMPERATURE WATER 审中-公开氧化膜电导率在高温水中维持低腐蚀潜力的修改
公开(公告)号：WO1996000447A1
公开(公告)日：1996-01-04
申请号：PCT/US1995008905
申请日：1995-06-23
Applicant: GENERAL ELECTRIC COMPANY
Inventor： GENERAL ELECTRIC COMPANY , HETTIARACHCHI, Samson , KIM, Young, Jin , ANDRESEN, Peter, Louis , DIAZ, Thomas, Pompilio
IPC: G21C17/022
CPC classification number: G21C17/0225 , G21C17/022 , G21C19/307 , G21Y2002/103 , G21Y2002/104 , G21Y2004/10 , G21Y2004/20 , G21Y2004/302
Abstract: A method for mitigating general corrosion and crack initiation and growth on the surface of 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/atoms of the non-noble metal which incorporate in or deposit on 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 deposited in or on an oxided surface of a metal component will reduce the electrochemical potential at the surface to a level below the critical potential to protect against intergranular stress corrosion cracking.
Abstract translation: 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引发和生长的方法。 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/原子，该离子/原子掺入或沉积在组分的表面上，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。 沉积在金属部件的氧化表面上或氧化表面上的锆将将表面处的电化学势降低到临界电位以下以防止晶间应力腐蚀开裂的水平。
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3.发明公开APPLICATION OF NOBLE METALS TO INTERNAL SURFACES OF OPERATING BOILING WATER REACTORS IN THE PRESENCE OF ZINC IN REACTOR WATER 审中-公开贵金属皮革从内部PRESENCE锌在水反应堆式的运行BWR HIGHER。
公开(公告)号：EP1075695A1
公开(公告)日：2001-02-14
申请号：EP99970499.2
申请日：1999-10-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： HETTIARACHCHI, Samson , SIEGWARTH, David, Phillip , COWAN, Robert, Lee, II , LAW, Robert, James
IPC: G21C17/022
CPC classification number: G21C17/0225 , G21C19/307 , G21Y2002/103 , G21Y2002/201 , G21Y2004/10 , G21Y2004/403
Abstract: Method for reducing corrosion of alloy components in a water cooled nuclear reactor or associated components comprising the step of injecting into the water of the reactor in the presence of zinc a noble metal cation-releasing compound which releases noble metal cations or cationic species containing noble metal species into the reactor water under operating reactor thermal conditions.
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Patent Agency Ranking4.发明公开MODIFICATION OF OXIDE FILM ELECTRICAL CONDUCTIVITY TO MAINTAIN LOW CORROSION POTENTIAL IN HIGH-TEMPERATURE WATER 失效CHANGE OXYSCHICHT TO的电导率在高温腐蚀电位TO GET LOW
公开(公告)号：EP0715762A1
公开(公告)日：1996-06-12
申请号：EP95928071.0
申请日：1995-06-23
Applicant: GENERAL ELECTRIC COMPANY
CPC classification number: G21C17/0225 , G21C17/022 , G21C19/307 , G21Y2002/103 , G21Y2002/104 , G21Y2004/10 , G21Y2004/20 , G21Y2004/302
Abstract: A method for mitigating general corrosion and crack initiation and growth on the surface of 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/atoms of the non-noble metal which incorporate in or deposit on 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 deposited in or on an oxided surface of a metal component will reduce the electrochemical potential at the surface to a level below the critical potential to protect against intergranular stress corrosion cracking.
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5.发明授权TEMPERATURE BASED METHOD FOR CONTROLLING THE AMOUNT OF METAL APPLIED TO METAL OXIDE SURFACES TO REDUCE CORROSION AND STRESS CORROSION CRACKING 有权基于温度的方法用于控制施加在金属量降低应力腐蚀开裂的腐蚀与金属氧化物
公开(公告)号：EP1036218B1
公开(公告)日：2006-06-21
申请号：EP98965966.9
申请日：1998-11-23
Applicant: GENERAL ELECTRIC COMPANY
Inventor： HETTIARACHCHI, Samson , LAW, Robert, James , SIEGWARTH, David, Phillip , DIAZ, Thomas, Pompilio , COWAN, Robert, Lee, II
IPC: C23F11/18 , G21C17/022 , G21C19/307 , G21C19/28
CPC classification number: C23F11/18 , G21C19/307 , G21Y2002/103 , G21Y2002/201 , G21Y2004/20 , G21Y2004/40
Abstract: 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 submeerged in water at a selected temperature within the range of about to 200 DEG to 550 DEG 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.
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6.发明公开TEMPERATURE BASED METHOD FOR CONTROLLING THE AMOUNT OF METAL APPLIED TO METAL OXIDE SURFACES TO REDUCE CORROSION AND STRESS CORROSION CRACKING 有权基于温度的方法用于控制施加在金属量降低应力腐蚀开裂的腐蚀与金属氧化物
公开(公告)号：EP1036218A1
公开(公告)日：2000-09-20
申请号：EP98965966.9
申请日：1998-11-23
Applicant: GENERAL ELECTRIC COMPANY
Inventor： HETTIARACHCHI, Samson , LAW, Robert, James , SIEGWARTH, David, Phillip , DIAZ, Thomas, Pompilio , COWAN, Robert, Lee, II
IPC: C23F11/18 , G21C17/022 , G21C19/307 , G21C19/28
CPC classification number: C23F11/18 , G21C19/307 , G21Y2002/103 , G21Y2002/201 , G21Y2004/20 , G21Y2004/40
Abstract: 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 submeerged 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.
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公开(公告)号：EP0833962B1
公开(公告)日：2003-03-19
申请号：EP97926366.2
申请日：1997-04-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： HETTIARACHCHI, Samson
IPC: C23F11/08
CPC classification number: G21C17/0225 , B01J37/031 , C23F11/18 , G01N17/02 , G21C17/02 , G21C17/022 , G21C19/28 , G21C19/307 , G21Y2002/102 , G21Y2002/103 , G21Y2002/104 , G21Y2002/204 , G21Y2004/10 , G21Y2004/20 , G21Y2004/30 , G21Y2004/304 , G21Y2004/40 , Y10S376/90
Abstract: A method for reducing corrosion of metal components in a water cooled nuclear reactor. A compound containing a platinum group metal, e.g. palladium, is injected alone in small amounts into the high temperature water of the reactor in the form of a solution or suspension. This compound decomposes under reactor thermal conditions to release atoms of the metal in an amount sufficient when present on the metal components to reduce the electrochemical corrosion potential of the metal components to a level below the critical potential to protect against intergranular stress corrosion cracking.
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公开(公告)号：EP0833962A1
公开(公告)日：1998-04-08
申请号：EP97926366.0
申请日：1997-04-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： HETTIARACHCHI, Samson
CPC classification number: G21C17/0225 , B01J37/031 , C23F11/18 , G01N17/02 , G21C17/02 , G21C17/022 , G21C19/28 , G21C19/307 , G21Y2002/102 , G21Y2002/103 , G21Y2002/104 , G21Y2002/204 , G21Y2004/10 , G21Y2004/20 , G21Y2004/30 , G21Y2004/304 , G21Y2004/40 , Y10S376/90
Abstract: A method for reducing corrosion of metal components in a water cooled nuclear reactor. A compound containing a platinum group metal, e.g. palladium, is injected alone in small amounts into the high temperature water of the reactor in the form of a solution or suspension. This compound decomposes under reactor thermal conditions to release atoms of the metal in an amount sufficient when present on the metal components to reduce the electrochemical corrosion potential of the metal components to a level below the critical potential to protect against intergranular stress corrosion cracking.
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