Fig. 3: EIS results for non-coated and Zr-CrCC-coated AlSi7Mg0.3 samples.

Bode plots (a) of impedance magnitude and (b) phase angle of the ground (green symbols) AlSi7Mg0.3 sample and Zr-CrCC-coated AlSi7Mg0.3, measured after immersion in 0.1 M NaCl for 1 h (triangles) and a week (squares).