An impedance study on the influence of molybdenum in stainless steel pitting corrosion
2002
Polo, J. L. | Cano Díaz, Emilio | Bastidas Rull, José María
Impedance measurements were made for AISI 304L and 316L stainless steels in a 5% NaCl solution at room temperature. Nyquist plots in the pitting potential region show three loops: a capacitive loop at high frequencies; a loop with inductive effects at intermediate frequencies; and a second capacitive response at low frequencies. An equivalent electrical circuit has been proposed to model the AISI 304L and 316L SS/NaCl systems. Negative capacitance and resistance were obtained. The impedance data do not satisfy Kramers-Kronig (KK) transforms. Details of the KK determinations are included. © 2002 Elsevier Science B.V. All rights reserved.
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