Guddi Choudhary, Arpita Sharma, Alka Sharma
The corrosive behavior of some metals was studied in varying strength of two different acids by employing weight loss method. The experimentation was carried out at room temperature. The effect on corrosion behavior of metals with the change in acidic strength as well as the nature of metal was monitored at different immersion periods. The corrosion parameters were determined with the experimental data. On analysis, at room temperature, HCl (compared to H3PO4) was found to be more aggressive towards aluminium as well as mild steel (in comparison to copper). The kinetic parameters were evaluated and discussed. The surface analysis also carried out with the help of Scanning electron microscope (SEM), Energy dispersive X-ray (EDX), Optical microscope (OM) and X-ray fluorescence (XRF). Overall the result suggest that corrosion was observed significantly less in H3PO4 acidic medium as compare to HCl medium.
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