The Experts below are selected from a list of 123 Experts worldwide ranked by ideXlab platform
Hans J. Leber - One of the best experts on this subject based on the ideXlab platform.
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Corrosion fatigue initiation and short crack growth behaviour of austenitic stainless steels under light water reactor conditions
Corrosion Science, 2012Co-Authors: H P Seifert, Stefan Ritter, Hans J. LeberAbstract:Abstract The Corrosion fatigue initiation and short crack growth behaviour of different wrought low-carbon and stabilised austenitic stainless steels was characterised under simulated boiling water reactor and pressurised water reactor primary water conditions by cyclic fatigue tests with sharply notched fracture mechanics specimens. The special emphasis was placed to the behaviour at low Corrosion potentials and, in particular, to hydrogen water chemistry conditions. The major parameter effects and critical conjoint threshold conditions, which result in relevant environmental reduction and acceleration of fatigue initiation life and subsequent short crack growth, respectively, are discussed and summarised. The Observed Corrosion fatigue behaviour is compared with the fatigue evaluation procedures in codes and regulatory guidelines.
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Corrosion fatigue crack growth behaviour of austenitic stainless steels under light water reactor conditions
Corrosion Science, 2012Co-Authors: H P Seifert, Stefan Ritter, Hans J. LeberAbstract:Abstract The Corrosion fatigue crack growth behaviour of different wrought low-carbon and stabilised austenitic stainless steels was characterised under simulated boiling water and primary pressurised water reactor conditions by cyclic fatigue tests with pre-cracked fracture mechanics specimens in the temperature range from 70 to 320 °C. The major parameter effects and critical conjoint threshold conditions, which result in relevant environmental acceleration of fatigue crack growth are discussed and summarised. Furthermore, the Observed Corrosion fatigue behaviour is compared with the corresponding (Corrosion) fatigue curves in the ASME and JSME boiler and pressure vessel code or open literature and conclusions with regard to their adequacy and conservatism are given.
H P Seifert - One of the best experts on this subject based on the ideXlab platform.
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Corrosion fatigue initiation and short crack growth behaviour of austenitic stainless steels under light water reactor conditions
Corrosion Science, 2012Co-Authors: H P Seifert, Stefan Ritter, Hans J. LeberAbstract:Abstract The Corrosion fatigue initiation and short crack growth behaviour of different wrought low-carbon and stabilised austenitic stainless steels was characterised under simulated boiling water reactor and pressurised water reactor primary water conditions by cyclic fatigue tests with sharply notched fracture mechanics specimens. The special emphasis was placed to the behaviour at low Corrosion potentials and, in particular, to hydrogen water chemistry conditions. The major parameter effects and critical conjoint threshold conditions, which result in relevant environmental reduction and acceleration of fatigue initiation life and subsequent short crack growth, respectively, are discussed and summarised. The Observed Corrosion fatigue behaviour is compared with the fatigue evaluation procedures in codes and regulatory guidelines.
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Corrosion fatigue crack growth behaviour of austenitic stainless steels under light water reactor conditions
Corrosion Science, 2012Co-Authors: H P Seifert, Stefan Ritter, Hans J. LeberAbstract:Abstract The Corrosion fatigue crack growth behaviour of different wrought low-carbon and stabilised austenitic stainless steels was characterised under simulated boiling water and primary pressurised water reactor conditions by cyclic fatigue tests with pre-cracked fracture mechanics specimens in the temperature range from 70 to 320 °C. The major parameter effects and critical conjoint threshold conditions, which result in relevant environmental acceleration of fatigue crack growth are discussed and summarised. Furthermore, the Observed Corrosion fatigue behaviour is compared with the corresponding (Corrosion) fatigue curves in the ASME and JSME boiler and pressure vessel code or open literature and conclusions with regard to their adequacy and conservatism are given.
Brian Kinsella - One of the best experts on this subject based on the ideXlab platform.
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mapping non uniform Corrosion using the wire beam electrode method i multi phase carbon dioxide Corrosion
Corrosion Science, 2001Co-Authors: Stuart Bailey, Brian KinsellaAbstract:Abstract A wire beam electrode (WBE) was used in conjunction with electrochemical noise resistance (Rn) measurements to map carbon dioxide Corrosion of steel (UNS no. G10350) under simulated multi-phase oil flowline conditions. Local electrochemical parameters including Corrosion potential, galvanic current and electrochemical noise resistance were successfully measured from corroding WBE surfaces exposed to highly resistive hydrocarbon/produced water mixtures. These electrochemical parameters were used to calculate the rates of localised Corrosion and their distribution over a WBE surface. Electrochemically ‘calculated’ Corrosion maps correlated clearly with microscopically ‘Observed’ Corrosion depth maps although this correlation was not perfect and requires further improvement. This work suggests that the combined WBE–Rn technique is capable of measuring carbon dioxide Corrosion under multi-phase conditions and that it has certain advantages over conventional electrochemical measurements for measuring Corrosion in highly resistive media.
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mapping Corrosion kinetics using the wire beam electrode in conjunction with electrochemical noise resistance measurements
Journal of The Electrochemical Society, 2000Co-Authors: Yongjun Tan, Stuart Bailey, Brian Kinsella, A M LoweAbstract:A wire beam electrode (WBE) has been used, in conjunction with the electrochemical noise resistance method, to determine the kinetics of nonuniform Corrosion of mild steel in a carbon dioxide saturated brine. Local electrochemical parameters including Corrosion potential, galvanic current, and electrochemical noise resistance were measured from local areas of a WBE surface. These parameters were used to calculate the kinetics of local electrochemical Corrosion processes. A map showing instantaneous Corrosion rate distribution over a WBE surface has been produced. Corrosion depths were calculated, based on instantaneous Corrosion rate data, at various stages of the Corrosion exposure period, and these were summed up to produce an accumulated Corrosion depth map. This accumulated Corrosion depth map was found to be quantitatively comparable with a microscopically Observed Corrosion depth map. This work shows that electrochemical Corrosion kinetics can be determined using kinetic equations previously derived based on the WBE concept. This work also shows that the WBE is a novel electrode design which is suitable for performing electrochemical noise resistance measurement and that the WBE is applicable to practical Corrosion conditions.
Stuart Bailey - One of the best experts on this subject based on the ideXlab platform.
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mapping non uniform Corrosion using the wire beam electrode method i multi phase carbon dioxide Corrosion
Corrosion Science, 2001Co-Authors: Stuart Bailey, Brian KinsellaAbstract:Abstract A wire beam electrode (WBE) was used in conjunction with electrochemical noise resistance (Rn) measurements to map carbon dioxide Corrosion of steel (UNS no. G10350) under simulated multi-phase oil flowline conditions. Local electrochemical parameters including Corrosion potential, galvanic current and electrochemical noise resistance were successfully measured from corroding WBE surfaces exposed to highly resistive hydrocarbon/produced water mixtures. These electrochemical parameters were used to calculate the rates of localised Corrosion and their distribution over a WBE surface. Electrochemically ‘calculated’ Corrosion maps correlated clearly with microscopically ‘Observed’ Corrosion depth maps although this correlation was not perfect and requires further improvement. This work suggests that the combined WBE–Rn technique is capable of measuring carbon dioxide Corrosion under multi-phase conditions and that it has certain advantages over conventional electrochemical measurements for measuring Corrosion in highly resistive media.
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mapping Corrosion kinetics using the wire beam electrode in conjunction with electrochemical noise resistance measurements
Journal of The Electrochemical Society, 2000Co-Authors: Yongjun Tan, Stuart Bailey, Brian Kinsella, A M LoweAbstract:A wire beam electrode (WBE) has been used, in conjunction with the electrochemical noise resistance method, to determine the kinetics of nonuniform Corrosion of mild steel in a carbon dioxide saturated brine. Local electrochemical parameters including Corrosion potential, galvanic current, and electrochemical noise resistance were measured from local areas of a WBE surface. These parameters were used to calculate the kinetics of local electrochemical Corrosion processes. A map showing instantaneous Corrosion rate distribution over a WBE surface has been produced. Corrosion depths were calculated, based on instantaneous Corrosion rate data, at various stages of the Corrosion exposure period, and these were summed up to produce an accumulated Corrosion depth map. This accumulated Corrosion depth map was found to be quantitatively comparable with a microscopically Observed Corrosion depth map. This work shows that electrochemical Corrosion kinetics can be determined using kinetic equations previously derived based on the WBE concept. This work also shows that the WBE is a novel electrode design which is suitable for performing electrochemical noise resistance measurement and that the WBE is applicable to practical Corrosion conditions.
Stefan Ritter - One of the best experts on this subject based on the ideXlab platform.
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Corrosion fatigue initiation and short crack growth behaviour of austenitic stainless steels under light water reactor conditions
Corrosion Science, 2012Co-Authors: H P Seifert, Stefan Ritter, Hans J. LeberAbstract:Abstract The Corrosion fatigue initiation and short crack growth behaviour of different wrought low-carbon and stabilised austenitic stainless steels was characterised under simulated boiling water reactor and pressurised water reactor primary water conditions by cyclic fatigue tests with sharply notched fracture mechanics specimens. The special emphasis was placed to the behaviour at low Corrosion potentials and, in particular, to hydrogen water chemistry conditions. The major parameter effects and critical conjoint threshold conditions, which result in relevant environmental reduction and acceleration of fatigue initiation life and subsequent short crack growth, respectively, are discussed and summarised. The Observed Corrosion fatigue behaviour is compared with the fatigue evaluation procedures in codes and regulatory guidelines.
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Corrosion fatigue crack growth behaviour of austenitic stainless steels under light water reactor conditions
Corrosion Science, 2012Co-Authors: H P Seifert, Stefan Ritter, Hans J. LeberAbstract:Abstract The Corrosion fatigue crack growth behaviour of different wrought low-carbon and stabilised austenitic stainless steels was characterised under simulated boiling water and primary pressurised water reactor conditions by cyclic fatigue tests with pre-cracked fracture mechanics specimens in the temperature range from 70 to 320 °C. The major parameter effects and critical conjoint threshold conditions, which result in relevant environmental acceleration of fatigue crack growth are discussed and summarised. Furthermore, the Observed Corrosion fatigue behaviour is compared with the corresponding (Corrosion) fatigue curves in the ASME and JSME boiler and pressure vessel code or open literature and conclusions with regard to their adequacy and conservatism are given.
