TY - JOUR
T1 - Effect of electrolyte composition on the electrochemical potentiokinetic reactivation behavior of Alloy 600
AU - Wu, Tsung Feng
AU - Cheng, Tzu Ping
AU - Tsai, Wen Ta
N1 - Funding Information:
The authors would like to thank the Materials Research Laboratory, the Industrial Technology Research Institute (ITRI), Taiwan, for their financial support of this research.
PY - 2001/6
Y1 - 2001/6
N2 - The effects of electrolyte composition and concentration on the reactivation behavior of Alloy 600 in H2SO4 + KSCN solution were investigated by conducting single-loop electrochemical potentiokinetic reactivation (SL-EPR) tests. The experimental results revealed that two anodic peaks existed, which corresponded to pitting corrosion and matrix corrosion, respectively, in the reactivation polarization curve of non-sensitized Alloy 600. Alternately, for sensitized Alloy 600, an additional peak associated with grain boundary corrosion appeared in the potential range of +60 to -10 mVSCE within the reactivation polarization curve. The shape and current density of the reactivation curve of Alloy 600 with different degrees of sensitization varied with the electrolyte composition adjustments. A maximum peak anodic current density associated with grain boundary corrosion occurred when the concentration ratio of H2SO4/KSCN was 10 for the sensitized low carbon Alloy 600.
AB - The effects of electrolyte composition and concentration on the reactivation behavior of Alloy 600 in H2SO4 + KSCN solution were investigated by conducting single-loop electrochemical potentiokinetic reactivation (SL-EPR) tests. The experimental results revealed that two anodic peaks existed, which corresponded to pitting corrosion and matrix corrosion, respectively, in the reactivation polarization curve of non-sensitized Alloy 600. Alternately, for sensitized Alloy 600, an additional peak associated with grain boundary corrosion appeared in the potential range of +60 to -10 mVSCE within the reactivation polarization curve. The shape and current density of the reactivation curve of Alloy 600 with different degrees of sensitization varied with the electrolyte composition adjustments. A maximum peak anodic current density associated with grain boundary corrosion occurred when the concentration ratio of H2SO4/KSCN was 10 for the sensitized low carbon Alloy 600.
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U2 - 10.1016/S0022-3115(01)00558-X
DO - 10.1016/S0022-3115(01)00558-X
M3 - Article
AN - SCOPUS:0035366065
SN - 0022-3115
VL - 295
SP - 233
EP - 243
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 2-3
ER -