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- Title
CORROSION OF 36CrMo STEEL IN HYDROCHLORIC ACID SOLUTION IN THE PRESENCE OF Thymus serpyllum EXTRACTS.
- Authors
XHANARI, K.; GACE, Z.; SEITI, B.; NURO, A.; HOTI, A.
- Abstract
Corrosion presents a constant and continuous problem for industry and finding effective methods to control it has always been not only of theoretical, but of great economic interest. Plant extracts have recently found great application as corrosion inhibitors, especially in acid environments. The aim of this paper is to study the inhibition efficiency of Thymus serpyllum extract in the corrosion of 36CrMo steel in hydrochloric acid solution. The role of Thymus serpyllum extract as corrosion inhibitor has been tested for different concentrations of HCl solution and inhibitor, as well as at different temperatures, using the weight loss method. The results show that the corrosion stability of 36CrMo steel increases when increasing the concentration of the Thymus serpyllum extracts and decreases with acid concentration. The protection efficiency of the Thymus serpyllum extracts decreases with the temperature. Potentiodynamic polarisation measurements suggest that Thymus serpyllum extracts show both anodic and cathodic effect in reducing the corrosion current density and corrosion rate of 36CrMo steel in hydrochloric acid.
- Subjects
STEEL corrosion; CHROMIUM molybdenum steel; WILD thyme; HYDROCHLORIC acid; PLANT extracts; CORROSION resistance; PREVENTION
- Publication
Oxidation Communications, 2016, Vol 39, Issue 3-II, p2545
- ISSN
0209-4541
- Publication type
Article