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Development of an instantaneous corrosion rate monitoring system for metal and metal alloys in recirculating cooling systems / Mahbuboor R. Choudhury in Industrial & engineering chemistry research, Vol. 51 N° 11 (Mars 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 11 (Mars 2012) . - pp. 4230–4239 Titre : Development of an instantaneous corrosion rate monitoring system for metal and metal alloys in recirculating cooling systems Type de document : texte imprimé Auteurs : Mahbuboor R. Choudhury, Auteur ; Ming-Kai Hsieh, Auteur ; Radisav D. Vidic, Auteur Année de publication : 2012 Article en page(s) : pp. 4230–4239 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Corrosion  Metal  alloys  Aqueous  system Résumé : An instantaneous corrosion rate (ICR) monitoring technique, suitable for application in recirculating cooling water systems, is useful for rapid appraisal of corrosiveness of the aqueous system with respect to metal and metal alloys of interest. In this study the instantaneous corrosion rates of mild steel, copper, and cupronickel alloys were measured at various times during an exposure period by electrochemical polarization resistance measurements using a three-electrode system. The average corrosion rates (ACR) were also determined by the gravimetric weight loss method to correlate with the ICR data. Stainless steel was used as the reference electrode to replace the standard saturated calomel electrode for increased robustness of the system in pilot-scale cooling systems. A side-streamflow channel unit was designed to hold the three electrodes in flowing cooling water. Use of stainless steel as a reference electrode was reliable and ICR was monitored intermittently for 28 days. Integration of the ICR data from the pilot-scale cooling towers correlated well with the ACR results, with similar correlation coefficients obtained from bench-scale experiments. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202845g [article] Development of an instantaneous corrosion rate monitoring system for metal and metal alloys in recirculating cooling systems [texte imprimé] / Mahbuboor R. Choudhury, Auteur ; Ming-Kai Hsieh, Auteur ; Radisav D. Vidic, Auteur . - 2012 . - pp. 4230–4239. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 11 (Mars 2012) . - pp. 4230–4239 Mots-clés : Corrosion  Metal  alloys  Aqueous  system Résumé : An instantaneous corrosion rate (ICR) monitoring technique, suitable for application in recirculating cooling water systems, is useful for rapid appraisal of corrosiveness of the aqueous system with respect to metal and metal alloys of interest. In this study the instantaneous corrosion rates of mild steel, copper, and cupronickel alloys were measured at various times during an exposure period by electrochemical polarization resistance measurements using a three-electrode system. The average corrosion rates (ACR) were also determined by the gravimetric weight loss method to correlate with the ICR data. Stainless steel was used as the reference electrode to replace the standard saturated calomel electrode for increased robustness of the system in pilot-scale cooling systems. A side-streamflow channel unit was designed to hold the three electrodes in flowing cooling water. Use of stainless steel as a reference electrode was reliable and ICR was monitored intermittently for 28 days. Integration of the ICR data from the pilot-scale cooling towers correlated well with the ACR results, with similar correlation coefficients obtained from bench-scale experiments. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202845g