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图5 铁基非晶涂层在3.5%NaCl溶液中的Nyquist图、Bode图和等效电路
Fig.5 Nyquist (a) and Bode (b) plots of the Fe-based amorphous coatings in 3.5%NaCl solution (Inset in Fig.5a is the equivalent circuit of coatings for EIS fitting. Z'—real part of the impedance, Z''—imaginary part of the impedance, |Z|—modulus of impedance, Rs—solution resistance, Rt—charge transfer resistance,CPE-dl—constant phase angle element related to electric double layer capacity, CPE-f—constant phase angle element related to passive film capacity, Rf—passive film resistance)