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Efficiency comparison of some rural products on corrosion inhibition of al-mg-si alloy

Rosliza, R. and Wan Nik, W. B. and Izman, Sudin (2011) Efficiency comparison of some rural products on corrosion inhibition of al-mg-si alloy. Advanced Materials Research, 328-30 . pp. 1206-1209. ISSN 1022-6680

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/AMR.3...

Abstract

The comparison of the efficiency of some natural products (natural honey, vanillin and tapioca starch) on corrosion inhibition of Al-Mg-Si alloy is investigated in seawater solution at room temperature, using potentiodynamic polarization (PP), linear polarization resistance (LPR), and electrochemical impedance spectroscopy (EIS) measurements. The evolution of the corrosion potential (Ecorr) and corrosion current density (icorr) obtained from Tafel extrapolation of polarization curves, and the polarization resistance (Rp) values determined from LPR and EIS measurements indicate that the corrosion rates of Al-Mg-Si alloy decrease with the increasing the natural products concentration. In all cases, the increasing order of inhibition efficiency is: Natural honey < Vanillin < Tapioca starch.

Item Type:Article
Uncontrolled Keywords:Al-Mg-Si Alloy, EDS, inhibition efficiency, natural product
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mechanical Engineering
ID Code:44892
Deposited By: Haliza Zainal
Deposited On:21 Apr 2015 03:31
Last Modified:31 Jan 2017 06:23

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