TY - JOUR
T1 - Effect of Cysteine as Environmentally Friendly Inhibitor on AA6061-T6 Corrosion in 0.5 M HCl
T2 - Electrochemical and Surface Studies
AU - Preethi Kumari P, Kumari P
AU - Shetty, Prakash
AU - Nagalaxmi, null
AU - Sunil, Dhanya
N1 - Funding Information:
The authors are grateful to Manipal Institute of Technology, Manipal Academy of Higher Education (A Deemed University), Manipal, India, for providing the laboratory facilities.
Publisher Copyright:
© 2020, Allerton Press, Inc.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - Abstract: The inhibitive action of cysteine was investigated against the corrosion of aluminium alloy 6061-T6 (AA6061-T6) in a 0.5 M hydrochloric acidic medium in the temperatures range of 303–323 K using potentiodynamic polarization as well as electrochemical impedance spectroscopy methods. The electrochemical results of the former were validated by the latter. Cysteine showed mixed inhibitor behavior and exhibited good inhibition performance. The thermodynamic properties indicated mixed adsorption behavior of cysteine, which satisfied the Langmuir adsorption isotherm. The surface morphological investigation of both corroded and inhibited specimens was performed using a scanning electron microscopy and atomic force microscope, which revealed the adsorption of cysteine onto the alloy surface.
AB - Abstract: The inhibitive action of cysteine was investigated against the corrosion of aluminium alloy 6061-T6 (AA6061-T6) in a 0.5 M hydrochloric acidic medium in the temperatures range of 303–323 K using potentiodynamic polarization as well as electrochemical impedance spectroscopy methods. The electrochemical results of the former were validated by the latter. Cysteine showed mixed inhibitor behavior and exhibited good inhibition performance. The thermodynamic properties indicated mixed adsorption behavior of cysteine, which satisfied the Langmuir adsorption isotherm. The surface morphological investigation of both corroded and inhibited specimens was performed using a scanning electron microscopy and atomic force microscope, which revealed the adsorption of cysteine onto the alloy surface.
UR - https://www.scopus.com/pages/publications/85094672848
UR - https://www.scopus.com/pages/publications/85094672848#tab=citedBy
U2 - 10.3103/S1068375520050087
DO - 10.3103/S1068375520050087
M3 - Article
AN - SCOPUS:85094672848
SN - 1068-3755
VL - 56
SP - 624
EP - 634
JO - Surface Engineering and Applied Electrochemistry
JF - Surface Engineering and Applied Electrochemistry
IS - 5
ER -