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 journalArticlepeer-review

12 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

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'An ecofriendly approach for corrosion control of 6061 Al-15%<sub>(v)</sub> SiC<sub>(P)</sub> composite and its base alloy'. Together they form a unique fingerprint.

Cite this