Author/Authors :
Mouflih, Khadija Laboratory of Materials, Nanotechnology and Environment - Faculty of Sciences - Mohammed V University, Av. Ibn Battouta, Morocco , Boudalia, Maria Laboratory of Materials, Nanotechnology and Environment - Faculty of Sciences - Mohammed V University, Av. Ibn Battouta, Morocco , Bellaouchou, Abdelkbir Laboratory of Materials, Nanotechnology and Environment - Faculty of Sciences - Mohammed V University, Av. Ibn Battouta, Morocco , Guenbour, Abdellah Laboratory of Materials, Nanotechnology and Environment - Faculty of Sciences - Mohammed V University, Av. Ibn Battouta, Morocco , Zarrouk, Abdelkader Laboratory of Materials, Nanotechnology and Environment - Faculty of Sciences - Mohammed V University, Av. Ibn Battouta, Morocco , Tabyaoui, Mohamed Laboratory of Materials, Nanotechnology and Environment - Faculty of Sciences - Mohammed V University, Av. Ibn Battouta, Morocco
Abstract :
The purpose of this study was to investigate the effect of Juglans regia extract concentration on the corrosion behavior of Ni-Cr dental alloy in artificial saliva (AS) using potentiodynamic polarization (PDP), Impedance spectroscopy (EIS) and their surfaces were analyzed by optical microscopy (OM). The presence of Juglans regia extract in artificial saliva had a significant influence on the corrosion rate, the icorr value increased and linear polarization resistance (LPR) decreased in artificial saliva (AS) medium, but in the presence of Juglans regia extract the corrosion resistance of this alloy improved. Impedance measurements confirm the anti-corrosion ability by adding the extracted plant and this is correlated to the enlargement of capacitive loops. The optical microscopic studies show the formation of a film on Ni-Cr dental alloy surface in the presence of the plant extract.
Keywords :
Optical microscopy , Electrochemical techniques , Juglans regia extract , Corrosion inhibition , Artificial saliva medium , Ni-Cr dental alloy
