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Published in:

Volume 5 Issue 12
December-2018
eISSN: 2349-5162

Unique Identifier

JETIR1812A99

Page Number

727-734

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Title

Corrosion inhibition of mild steel in acid medium using Talinum Fruticosum as eco-friendly inhibitor

ISSN

2349-5162

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"Corrosion inhibition of mild steel in acid medium using Talinum Fruticosum as eco-friendly inhibitor", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.727-734, December-2018, Available :http://www.jetir.org/papers/JETIR1812A99.pdf

Abstract

The inhibition effect of Talinum fruticosum leaves extract (TFL) on corrosion of mild steel in 1N HCl was investigated through mass loss measurements with various time and temperature and electrochemical techniques such as Potentiodynamic polarization, Electrochemical Impedance Spectroscopy (EIS) measurements. In this investigation the percentage of inhibition efficiency is increased with increase of inhibitor concentration. The maximum of 83.2% inhibition efficiency is achieved even after 360 hrs exposure time. In temperature studies, the observed results reflect that the percentage of inhibition efficiency is increased with increase of temperature and it suggests that the mechanism follows chemical adsorption. Both kinetic as well as thermodynamic parameters are calculated and discussed in detail. In electrochemical studies, Tafel plot shows, the corrosion current density (Icorr) values decreased with increase of inhibitor concentration. The inhibition efficiency of TFL extract attained a maximum value of 81.43% at 1000 ppm of inhibitor concentration. The value of charge transfer resistance (Rct) increased with increase in the inhibitor concentration. The values of double layer capacitance (Cdl) tend to decrease and the inhibition efficiency attained maximum of 85% with rise in inhibitor concentration. These results also in good agreement with those observed from the mass loss data. The thin film formation on the metal surface may also be confirmed by FT-IR, EDX spectral studies and the morphology of the specimen was analysed by SEM image

Key Words

Talinum fruticosum leaves, MS-Mild Steel, IE-Inhibition efficiency.

Cite This Article

"Corrosion inhibition of mild steel in acid medium using Talinum Fruticosum as eco-friendly inhibitor", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp727-734, December-2018, Available at : http://www.jetir.org/papers/JETIR1812A99.pdf

Publication Details

Published Paper ID: JETIR1812A99
Registration ID: 194488
Published In: Volume 5 | Issue 12 | Year December-2018
DOI (Digital Object Identifier):
Page No: 727-734
ISSN Number: 2349-5162

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Cite This Article

"Corrosion inhibition of mild steel in acid medium using Talinum Fruticosum as eco-friendly inhibitor", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp727-734, December-2018, Available at : http://www.jetir.org/papers/JETIR1812A99.pdf




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