Predicting susceptibility of alloy 600 to intergranular stress corrosion cracking using a modified electrochemical potentiokinetic reactivation test

Modified double-loop electrochemical potentiokinetic reactivation (DL-EPR) test have been applied to evaluate the degree of sensitization for alloy 600 aged at 700°C. Results of this test are compared to intergranular stress corrosion cracking susceptibilities determined in deaerated 0.01 M sodium tetrathionate under deformation at a constant rate of 0.93×10/s. By analyzing the effects of solution concentration, temperature, and scan rate on the electrochemical response in the EPR tests and the morphologies, the optimal modified DL-EPR test condition for alloy 600 is obtained in 0.01 M sulfuric acid + 10 ppm potassium thiocyanate at 25°C and at a scan rate of 0.5 mV/s.
Publisher
National Association of Corrosion Engineers International
Issue Date
1995-06
Language
ENG
Citation

CORROSION, v.51, no.6, pp.441 - 449

ISSN
0010-9312
URI
http://hdl.handle.net/10203/73539
Appears in Collection
MS-Journal Papers(저널논문)
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