Anticorrosion Behaviour of a Hydrazide Derivative on 6061 Al-15%(v) SiC(P) Composite in Acid Medium: Experimental and Theoretical Calculations

Dhanya Shetty; P. Preethi Kumari; Suma A. Rao; Prakash Shetty

doi:10.1007/s40735-020-00356-9

Anticorrosion Behaviour of a Hydrazide Derivative on 6061 Al-15%_(v) SiC_(P) Composite in Acid Medium: Experimental and Theoretical Calculations

Dhanya Shetty, P. Preethi Kumari^*, Suma A. Rao, Prakash Shetty

^*Corresponding author for this work

Department of Chemistry, Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The present work describes the evaluation of anticorrosion property of 4-hydroxy-N′-[3-phenylprop-2-en-1-ylidene] benzohydrazide (HBH) on 6061 Al-15%_(v) SiC_(P) composite (Al-CM) in 0.5 M hydrochloric acid medium. The results of electrochemical measurement and specimen morphology study are discussed in this work. The adsorption of HBH over the Al-CM surface is through physisorption and obeys the Langmuir’s isotherm model. Potentiodynamic polarization study showed that the HBH acted as mixed inhibitor. The electrochemical impedance spectroscopy (EIS) study showed that the increase in the adsorption tendency of HBH on to the metal surface is due to increase in the polarization resistance. Density functional theory (DFT)-based calculations were carried out for both neutral and protonated HBH molecules which is well supported by the experimental observations.

Original language	English
Article number	59
Journal	Journal of Bio- and Tribo-Corrosion
Volume	6
Issue number	2
DOIs	https://doi.org/10.1007/s40735-020-00356-9
Publication status	Published - 01-06-2020

All Science Journal Classification (ASJC) codes

Materials Science (miscellaneous)
Mechanics of Materials
Mechanical Engineering
Materials Chemistry

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title = "Anticorrosion Behaviour of a Hydrazide Derivative on 6061 Al-15%(v) SiC(P) Composite in Acid Medium: Experimental and Theoretical Calculations",

abstract = "The present work describes the evaluation of anticorrosion property of 4-hydroxy-N′-[3-phenylprop-2-en-1-ylidene] benzohydrazide (HBH) on 6061 Al-15%(v) SiC(P) composite (Al-CM) in 0.5 M hydrochloric acid medium. The results of electrochemical measurement and specimen morphology study are discussed in this work. The adsorption of HBH over the Al-CM surface is through physisorption and obeys the Langmuir{\textquoteright}s isotherm model. Potentiodynamic polarization study showed that the HBH acted as mixed inhibitor. The electrochemical impedance spectroscopy (EIS) study showed that the increase in the adsorption tendency of HBH on to the metal surface is due to increase in the polarization resistance. Density functional theory (DFT)-based calculations were carried out for both neutral and protonated HBH molecules which is well supported by the experimental observations.",

author = "Dhanya Shetty and Kumari, {P. Preethi} and Rao, {Suma A.} and Prakash Shetty",

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AU - Kumari, P. Preethi

AU - Rao, Suma A.

AU - Shetty, Prakash

PY - 2020/6/1

Y1 - 2020/6/1

N2 - The present work describes the evaluation of anticorrosion property of 4-hydroxy-N′-[3-phenylprop-2-en-1-ylidene] benzohydrazide (HBH) on 6061 Al-15%(v) SiC(P) composite (Al-CM) in 0.5 M hydrochloric acid medium. The results of electrochemical measurement and specimen morphology study are discussed in this work. The adsorption of HBH over the Al-CM surface is through physisorption and obeys the Langmuir’s isotherm model. Potentiodynamic polarization study showed that the HBH acted as mixed inhibitor. The electrochemical impedance spectroscopy (EIS) study showed that the increase in the adsorption tendency of HBH on to the metal surface is due to increase in the polarization resistance. Density functional theory (DFT)-based calculations were carried out for both neutral and protonated HBH molecules which is well supported by the experimental observations.

AB - The present work describes the evaluation of anticorrosion property of 4-hydroxy-N′-[3-phenylprop-2-en-1-ylidene] benzohydrazide (HBH) on 6061 Al-15%(v) SiC(P) composite (Al-CM) in 0.5 M hydrochloric acid medium. The results of electrochemical measurement and specimen morphology study are discussed in this work. The adsorption of HBH over the Al-CM surface is through physisorption and obeys the Langmuir’s isotherm model. Potentiodynamic polarization study showed that the HBH acted as mixed inhibitor. The electrochemical impedance spectroscopy (EIS) study showed that the increase in the adsorption tendency of HBH on to the metal surface is due to increase in the polarization resistance. Density functional theory (DFT)-based calculations were carried out for both neutral and protonated HBH molecules which is well supported by the experimental observations.

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Anticorrosion Behaviour of a Hydrazide Derivative on 6061 Al-15%_(v) SiC_(P) Composite in Acid Medium: Experimental and Theoretical Calculations

Abstract

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