| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1470255 | Corrosion Science | 2011 | 9 Pages |
The inhibition effect of acid violet 6B (AV6B) on the corrosion of cold rolled steel (CRS) in 1.0–5.0 M HCl solution was studied for the first time by weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) methods. The results show that AV6B is a very good inhibitor in 1.0 M HCl, and the adsorption of AV6B on CRS surface obeys Langmuir adsorption isotherm. Polarization curves reveal that AV6B behaves as a mixed-type inhibitor. EIS spectra exhibit one capacitive loop and confirm the inhibitive ability. Effects of immersion time and acid concentration on inhibition performance were also discussed.
Research highlights► Acid violet 6B (AV6B) is found to be a good inhibitor for the corrosion of CRS in 1.0 M HCl. ► Effects of hydrochloric acid concentration (1.0 – 5.0 M) and immersion time (2 – 144 h) are discussed in detail. ► The corrosion inhibition is satisfactorily discussed by both thermodynamic and kinetic parameters. ► AV6B acts as a mixed-type inhibitor. ► The adsorption of AV6B obeys Langmuir adsorption isotherm.
