Inhibitive action of 2-aminobezothiazole on the deterioration of AA6061-SiC composite in 0.5M HCl medium: Experimental and theoretical analysis

Navya Prabhu, Prakasha Shetty, Preethi Kumari, Sneha Kagatikar

Research output: Contribution to journalArticlepeer-review

Abstract

Electrochemical testing on AA6061-15%(V) SiC(P) composite corrosion in 0.5M HCl solution containing 2-amino benzothiazole (2-ABT) was performed. 2-ABT exhibited a good inhibition efficiency of 84% by acting as a mixed inhibitor. Polarization studies showed a considerable reduction in corrosion rate, leading to increased inhibition efficiency with a rise in 2-ABT concentration. The increase in polarization resistance with a rise in 2-ABT concentration indicates the adsorption of 2-ABT on the composite, controlling corrosion. The evaluation of thermodynamic results revealed the physisorption of 2-ABT on the composite. The adsorption of 2-ABT followed Langmuir isotherm model. The surface morphological evaluation of composite specimens before and after inhibition revealed the adsorption of 2-ABT on the composite. The results of quantum chemical calculations also confirmed the adsorption of 2-ABT.

Original languageEnglish
Pages (from-to)581-597
Number of pages17
JournalJournal of Applied Research and Technology
Volume21
Issue number4
Publication statusPublished - 08-2023

All Science Journal Classification (ASJC) codes

  • General Engineering

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