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The effect of sodium chloride (NaCl) on the electrochemical corrosion of the Inconel 625 at 300 ± 2 °C and 16 ± 1 MPa was investigated by polarization curves, electrochemical impedance spectroscopy (EIS) and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS). The experimental results showed that NaCl stimulated the Inconel 625 electrochemical corrosion and the oxide film on...
The influence of calcium fluoride on the electrochemical dissolution of chalcopyrite at pH 2 was investigated. Experimental results show, when CaF 2 concentration from 0 increased to 10 mg/L, chalcopyrite corrosion current density from 0.316 μA cm −2 changed to 0.302 μA cm −2 , the CaF 2 inhibition efficiency is 4.43 % and up to 15.19 % when CaF...
The effect of stress action on pyrite–chalcopyrite galvanic corrosion was investigated using polarization curves and electrochemical impedance spectroscopy (EIS) measurements. When stress increased from 0 to 4 × 105 Pa, the corrosion current density of pyrite–chalcopyrite increased from 5.678 to 6.719 μA cm−2, and the corrosion potential decreased from 281.634 to 270.187 mV, accompanied by a decrease...
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