Author/Authors :
Ghenimi, Ghizlane Laboratory of materials - Electrochemistry and environment - Faculty of Science - Ibn Tofail University - PB. 133-14050 Kenitra, Morocco , Ouakki, Moussa Laboratory of materials - Electrochemistry and environment - Faculty of Science - Ibn Tofail University - PB. 133-14050 Kenitra, Morocco , Barebita, Hanane Laboratory of materials - Electrochemistry and environment - Faculty of Science - Ibn Tofail University - PB. 133-14050 Kenitra, Morocco , El Fazazi, Asmae Laboratory of materials - Electrochemistry and environment - Faculty of Science - Ibn Tofail University - PB. 133-14050 Kenitra, Morocco , Guedira, Taoufik Laboratory of materials - Electrochemistry and environment - Faculty of Science - Ibn Tofail University - PB. 133-14050 Kenitra, Morocco , Cherkaoui, Mohammed Laboratory of materials - Electrochemistry and environment - Faculty of Science - Ibn Tofail University - PB. 133-14050 Kenitra, Morocco
Abstract :
Corrosion inhibition of mild steel by two new glassy materials correlated with the ternary system Bi2O3-B2O3-P2O5 in HCl 1.0 M medium was evaluated using different technics: Gravimetry and electrochemical methods (polarization and electrochemical impedance spectroscopy (EIS)). The results show that the inhibition efficiency depends on the concentration of the two compounds studied (1BHP, 2BHP) and the temperature. The adsorption model obeys to Langmuir isotherm. Thermodynamic parameters were calculated and analysed. The morphology of the steel surface was characterized by scanning electron microscopy (SEM) coupled with EDX.
Keywords :
Glassy phase , Inhibition , Corrosion , Mild steel
