An ecofriendly approach for corrosion control of 6061 Al-15%(v) SiC(P) composite and its base alloy

Charitha B.P., Padmalatha Rao

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Corrosion inhibition characteristics of bio polymer dextran was studied for the corrosion control of 6061 Al-15%(v) SiC(p) composite and its base alloy in 1 mol·L− 1 HCl. Standard electrochemical techniques such as potentiodynamic polarization (PDP) measurements and electrochemical impedance spectroscopy (EIS) method were adopted for corrosion rate measurement. Surface morphology was studied by scanning electron microscopy (SEM) and elemental mapping was done by energy dispersive X-ray (EDX) analysis. Suitable mechanism was proposed for corrosion and inhibition process. Results indicated that dextran acts as an excellent anticorrosive agent for the corrosion control of 6061 Al-15%(v) SiC(p) composite, with maximum inhibition efficiency of 91% for the concentration of 0.4 g·L− 1 at 303 K. Dextran acted as a mixed type of inhibitor, and got physically adsorbed both on composite and base alloy by obeying Langmuir adsorption isotherm. Dextran is proved to be a green inhibitor with environmental and economic benefits.

Original languageEnglish
Pages (from-to)363-372
Number of pages10
JournalChinese Journal of Chemical Engineering
Volume25
Issue number3
DOIs
Publication statusPublished - 01-03-2017

Fingerprint

Corrosion
Dextran
Dextrans
Composite materials
Electrochemical Techniques
Energy dispersive X ray analysis
Potentiodynamic polarization
Dielectric Spectroscopy
Corrosion rate
Electrochemical impedance spectroscopy
Adsorption isotherms
Surface morphology
Polymers
Electron Scanning Microscopy
Adsorption
Scanning electron microscopy
Economics
X-Rays

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Chemistry(all)
  • Biochemistry
  • Chemical Engineering(all)

Cite this

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title = "An ecofriendly approach for corrosion control of 6061 Al-15{\%}(v) SiC(P) composite and its base alloy",
abstract = "Corrosion inhibition characteristics of bio polymer dextran was studied for the corrosion control of 6061 Al-15{\%}(v) SiC(p) composite and its base alloy in 1 mol·L− 1 HCl. Standard electrochemical techniques such as potentiodynamic polarization (PDP) measurements and electrochemical impedance spectroscopy (EIS) method were adopted for corrosion rate measurement. Surface morphology was studied by scanning electron microscopy (SEM) and elemental mapping was done by energy dispersive X-ray (EDX) analysis. Suitable mechanism was proposed for corrosion and inhibition process. Results indicated that dextran acts as an excellent anticorrosive agent for the corrosion control of 6061 Al-15{\%}(v) SiC(p) composite, with maximum inhibition efficiency of 91{\%} for the concentration of 0.4 g·L− 1 at 303 K. Dextran acted as a mixed type of inhibitor, and got physically adsorbed both on composite and base alloy by obeying Langmuir adsorption isotherm. Dextran is proved to be a green inhibitor with environmental and economic benefits.",
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An ecofriendly approach for corrosion control of 6061 Al-15%(v) SiC(P) composite and its base alloy. / B.P., Charitha; Rao, Padmalatha.

In: Chinese Journal of Chemical Engineering, Vol. 25, No. 3, 01.03.2017, p. 363-372.

Research output: Contribution to journalArticle

TY - JOUR

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AU - B.P., Charitha

AU - Rao, Padmalatha

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AB - Corrosion inhibition characteristics of bio polymer dextran was studied for the corrosion control of 6061 Al-15%(v) SiC(p) composite and its base alloy in 1 mol·L− 1 HCl. Standard electrochemical techniques such as potentiodynamic polarization (PDP) measurements and electrochemical impedance spectroscopy (EIS) method were adopted for corrosion rate measurement. Surface morphology was studied by scanning electron microscopy (SEM) and elemental mapping was done by energy dispersive X-ray (EDX) analysis. Suitable mechanism was proposed for corrosion and inhibition process. Results indicated that dextran acts as an excellent anticorrosive agent for the corrosion control of 6061 Al-15%(v) SiC(p) composite, with maximum inhibition efficiency of 91% for the concentration of 0.4 g·L− 1 at 303 K. Dextran acted as a mixed type of inhibitor, and got physically adsorbed both on composite and base alloy by obeying Langmuir adsorption isotherm. Dextran is proved to be a green inhibitor with environmental and economic benefits.

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