Electrochemical noise analysis of PbSCC of Alloy 600 SG tube in caustic environments at high temperature
Source abstract
Abstract
Abstract An electrochemical noise (EN) monitoring technique was applied to analyse an initiation and a propagation of Pb-assisted stress corrosion cracking (PbSCC) of Alloy 600 material in a simulated environment of steam generator (SG) sludge piles at high temperature. A typical electrochemical potential decrease concurrent with a current increase was observed during the EN measurements, indicating the occurrence of localized corrosion events. The EN data were analysed for the processes of a uniform corrosion, an initiation and a propagation of PbSCC using a stochastic theory and microscopy.
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Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Corrosion Behavior and Inhibition · Non-Destructive Testing Techniques
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