دراسة الاثر التثبيطي لنباتpulicaria Crispa Tamarix Gallica Zygophyllum Album لفولاذ كربوني X52 في وسط حامضي H2so4
Résumé: The present study represents a contribution to the detection of new inhibitors for easy preparation and application. These inhibitors are characterized as inexpensive, non-toxic and widely available. In this research plant extracts were used to protect Mild steel (API 5L grade X52) from corrosion in a solution (1M) of acid (H2SO4).As for the evaluation of the inhibitory performance, several tests were carried out for measuring the corrosion rate using the following methods: gravimetry, polarization curves , electrochemical impedance spectroscopy (SIE) and scanning electron microscopy (SEM) coupled with elementary Analyzer( EDX).The inhibitor concentration changing effect on the metal surface was monitored based on the curve of each method with approved thermodynamic amounts calculation .Concerning SEM coupled with EDX, it has shown a stable adhesive layer on the steel surface
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