Title :
Azadirachta excelsa as green corrosion inhibitor for mild steel in acidic medium
Author :
Mahat, M.M. ; Kamarudin, M.S. ; Isa, J. ; Bonnia, N.N. ; Jani, N.A.
Author_Institution :
Centre of Metals, Ceramics & Composite Mater., Univ. Teknol. Mara Shah Alam, Shah Alam, Malaysia
Abstract :
The effect of extract of Azadirachta excelsa leaves as corrosion inhibitor on mild steel in hydrochloric acid medium was investigated using weight loss method. By using data obtained, the corrosion rate (CR), inhibition efficiency (IE) and surface coverage was calculated. Extracts of Azadirachta excelsa leaves in different concentration were used as natural inhibitor. The inhibition efficiency of mild steel in 1 M hydrochloric acid increased as the increasing of concentration of plant extract. The surface morphological changes are recorded using the FESEM analysis. The entire study proves that Azadirachta excelsa leaves extract was non-toxic, cost effective corrosion inhibitor for mild steel in acid medium.
Keywords :
carbon steel; corrosion inhibitors; environmental factors; scanning electron microscopy; surface morphology; Azadirachta excelsa leaf extract; FESEM analysis; acidic medium; corrosion rate; green corrosion inhibitor; hydrochloric acid; hydrochloric acid medium; inhibition efficiency; mild steel; nontoxic corrosion inhibitor; plant extract; surface coverage; surface morphological changes; weight loss method; Corrosion; Corrosion inhibitors; Loss measurement; Steel; Surface morphology; Azadirachta excelsa; Langmuir isotherm; SEM; corrosion; inhibitor; mild steel;
Conference_Titel :
Business, Engineering and Industrial Applications (ISBEIA), 2012 IEEE Symposium on
Conference_Location :
Bandung
Print_ISBN :
978-1-4577-1632-4
DOI :
10.1109/ISBEIA.2012.6422944
