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Corrosion Inhibitor on Copper and Stainless Steel for Component Cooling Water System of NPP

[+] Author Affiliations
Jin-hua Liu, Bin Gong, E Jang, Wei-gang Ma, Ju-hua Wen, Yan-chun He

Nuclear Power Institute of China, Chengdu, Sichuan, China

Paper No. ICONE21-16249, pp. V001T01A034; 6 pages
  • 2013 21st International Conference on Nuclear Engineering
  • Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Radiation Protection and Nuclear Technology Applications
  • Chengdu, China, July 29–August 2, 2013
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5578-2
  • Copyright © 2013 by ASME


Based on the corrosion issues of component cooling water system (CCWs) in nuclear power plant (NPP), the corrosion inhibition properties and protection mechanism on copper and stainless steel was studied by using tests such as electrochemical method, immersion test and dynamic water simulation. Results show that the optimum inhibitor is the compound of tolyltriazole (TTA) and phosphate, which has an excellent corrosion inhibition efficiency on copper in either pure water or abnormal water. The inhibitor also elevated the pitting potential of stainless steel and contributed to the corrosion resistance.

Copyright © 2013 by ASME



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