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. 2023 Jul 24;16(14):5192. doi: 10.3390/ma16145192

Figure 3.

Figure 3

Nyquist diagrams for X60-Steel in pickling solution (HCl) with diverse FSG6-6 concentrations (A) and with the existence of 0.2 mM of different surfactants (B) at 50 °C.