The inhibition action of ethyl-2-phenyl hydrozono-3-oxobutyrate on the corrosion of 6061 Al alloy/SiCp composite in hydrochloric acid medium

U. Achutha Kini, Prakash Shetty, S. Divakar Shetty, Arun Isloor, Ramadev Herle

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The inhibition behavior of ethyl-2-phenyl hydrozono-3-oxobutyrate on the corrosion of 6061 Al alloy/SiCp composite in 0.1, 0.5 and 1 N hydrochloric acid solution at four different temperatures (30-60 °C) has been investigated using potentiostatic polarization techniques and weight loss method. The results indicated that the corrosion inhibition efficiency and the extent of surface coverage were increased with the increase in inhibitor concentration up to a critical concentration. The adsorption of the inhibitor compound on the composite surface was found to obey Temkins' and Langmuir adsorption isotherms. The potentiostatic polarization results have revealed that oxobutyrate acts as an efficient cathodic inhibitor for the corrosion of 6061 Al alloy/SiCp composite in HCl medium. The thermodynamic parameters for the corrosion and adsorption processes were determined.

Original languageEnglish
Pages (from-to)56-60
Number of pages5
JournalJournal of the Chilean Chemical Society
Volume55
Issue number1
DOIs
Publication statusPublished - 01-01-2010

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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