Experimental study on corrosion inhibition of 304 SS in acid solution

S. Divakara Shetty, Ramdev Herle, Nagaraja Shetty

Research output: Contribution to journalArticle

Abstract

Inhibition is one of the mechanisms used for preventing acid corrosion of metals and alloys. The present work focus on investigating the inhibiting effect of N-furfuryl-Nl-phenyl thiourea (FPTU) on the corrosion of 304 SS in 1M HCl solution using the Tafel extrapolation and electrochemical impedance spectroscopy (EIS) techniques. The study reveals that FPTU acts as a mixed inhibitor, and good inhibition efficiency (> 92%) is observed even at elevated temperatures. The study also reveals that FPTU physically adsorbed on the steel surface, and abeys Temkin’s adsorption isotherm. It is evident from the study that the results of the Tafel extrapolation method and electrochemical impedance technique, obtained for the corrosion of 304 SS are in good accord. Since the compound investigated is highly effective in the range of temperatures and concentrations studied, it can be effectively used as inhibitor for mitigating the corrosion of steel in HCl medium.

Original languageEnglish
Pages (from-to)12892-12898
Number of pages7
JournalInternational Journal of Applied Engineering Research
Volume12
Issue number22
Publication statusPublished - 01-01-2017

Fingerprint

Thioureas
Corrosion
Acids
Extrapolation
Steel
Corrosion inhibitors
Electrochemical impedance spectroscopy
Adsorption isotherms
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

@article{5919da630d2048069c77570abe9441e2,
title = "Experimental study on corrosion inhibition of 304 SS in acid solution",
abstract = "Inhibition is one of the mechanisms used for preventing acid corrosion of metals and alloys. The present work focus on investigating the inhibiting effect of N-furfuryl-Nl-phenyl thiourea (FPTU) on the corrosion of 304 SS in 1M HCl solution using the Tafel extrapolation and electrochemical impedance spectroscopy (EIS) techniques. The study reveals that FPTU acts as a mixed inhibitor, and good inhibition efficiency (> 92{\%}) is observed even at elevated temperatures. The study also reveals that FPTU physically adsorbed on the steel surface, and abeys Temkin’s adsorption isotherm. It is evident from the study that the results of the Tafel extrapolation method and electrochemical impedance technique, obtained for the corrosion of 304 SS are in good accord. Since the compound investigated is highly effective in the range of temperatures and concentrations studied, it can be effectively used as inhibitor for mitigating the corrosion of steel in HCl medium.",
author = "{Divakara Shetty}, S. and Ramdev Herle and Nagaraja Shetty",
year = "2017",
month = "1",
day = "1",
language = "English",
volume = "12",
pages = "12892--12898",
journal = "International Journal of Applied Engineering Research",
issn = "0973-4562",
publisher = "Research India Publications",
number = "22",

}

Experimental study on corrosion inhibition of 304 SS in acid solution. / Divakara Shetty, S.; Herle, Ramdev; Shetty, Nagaraja.

In: International Journal of Applied Engineering Research, Vol. 12, No. 22, 01.01.2017, p. 12892-12898.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Experimental study on corrosion inhibition of 304 SS in acid solution

AU - Divakara Shetty, S.

AU - Herle, Ramdev

AU - Shetty, Nagaraja

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Inhibition is one of the mechanisms used for preventing acid corrosion of metals and alloys. The present work focus on investigating the inhibiting effect of N-furfuryl-Nl-phenyl thiourea (FPTU) on the corrosion of 304 SS in 1M HCl solution using the Tafel extrapolation and electrochemical impedance spectroscopy (EIS) techniques. The study reveals that FPTU acts as a mixed inhibitor, and good inhibition efficiency (> 92%) is observed even at elevated temperatures. The study also reveals that FPTU physically adsorbed on the steel surface, and abeys Temkin’s adsorption isotherm. It is evident from the study that the results of the Tafel extrapolation method and electrochemical impedance technique, obtained for the corrosion of 304 SS are in good accord. Since the compound investigated is highly effective in the range of temperatures and concentrations studied, it can be effectively used as inhibitor for mitigating the corrosion of steel in HCl medium.

AB - Inhibition is one of the mechanisms used for preventing acid corrosion of metals and alloys. The present work focus on investigating the inhibiting effect of N-furfuryl-Nl-phenyl thiourea (FPTU) on the corrosion of 304 SS in 1M HCl solution using the Tafel extrapolation and electrochemical impedance spectroscopy (EIS) techniques. The study reveals that FPTU acts as a mixed inhibitor, and good inhibition efficiency (> 92%) is observed even at elevated temperatures. The study also reveals that FPTU physically adsorbed on the steel surface, and abeys Temkin’s adsorption isotherm. It is evident from the study that the results of the Tafel extrapolation method and electrochemical impedance technique, obtained for the corrosion of 304 SS are in good accord. Since the compound investigated is highly effective in the range of temperatures and concentrations studied, it can be effectively used as inhibitor for mitigating the corrosion of steel in HCl medium.

UR - http://www.scopus.com/inward/record.url?scp=85057640120&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85057640120&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85057640120

VL - 12

SP - 12892

EP - 12898

JO - International Journal of Applied Engineering Research

JF - International Journal of Applied Engineering Research

SN - 0973-4562

IS - 22

ER -