Paper Titles in Periodical
International Letters of Chemistry, Physics and Astronomy
Volume 54


Subscribe to our Newsletter and get informed about new publication regulary and special discounts for subscribers!

ILCPA > Volume 54 > Computational and Experimental Studies on the...
< Back to Volume

Computational and Experimental Studies on the Inhibitive Effects of Newbouldia laevis Extract and Magnetic Fields on Copper Corrosion in Aqueous Acidic Media

Full Text PDF


A ploycrystaline copper (99.99%) coupons of dimension 1x2x5 cm in which a hole of diameter 0.5cm drilled was used. Before all measurements, the coupons were polished successively with metallographic emery paper between (600 and 1200) grits, then washed with doubly distilled water, degreased with acetone and again washed using distilled water and finally allowed to dry in air at room temperature. Explanation of the effects of magnetic fields on inhibition process using the chemical quantum calculations. The dipole moment is the product of a charge and distance of separation of the charges in an atom or molecule. Any process which can cause change in the alignment of the dipoles on the surface of the corroding metal systems can facilitate an increase in inhibition process. The magnetic field acts on the dipoles such that it aligns the charges on the metal thereby providing the needed charge types at the required point. This explains the graph on figure 1 which shows an increase in inhibition efficiency in the presence of magnetic fields.


International Letters of Chemistry, Physics and Astronomy (Volume 54)
B. O. Kelechukwu "Computational and Experimental Studies on the Inhibitive Effects of Newbouldia laevis Extract and Magnetic Fields on Copper Corrosion in Aqueous Acidic Media", International Letters of Chemistry, Physics and Astronomy, Vol. 54, pp. 135-142, 2015
Online since:
Jul 2015

Tierce, S, Pebere, N, Blanc, C, Casenave, C, Mankoiski, G, Robidou, H (2006) Corrosion behaviour of brazing material AA4343. Electorchim Acta, vol 53, 3, 12 p.1092.

Wang, S. S, Cheng, M. D, Tsao, L. C, Chuang, T. H, (2001) Corrosion behaviours of Al-Si-Cu (Sn, Zn) brazing filler metals mat chara 47, 4014.

Wang, G and Jiao, H, (2010), Microstructural Effects in Corrosion of Aluminium tube alloys, Trans. Nonferrous Met. Soc. China 21, 1193-1198.

Goncalves, W.F. O, Zoqui, E. J, Paes, M, (2006) Effect of Grain refining and Homogenizing treatment on Al-Fe-Mn-Si cast alloys, 17th CBECIMat- Congresso Brasileiro de Engenharia e Clencia dos materials, 5080-5088.

Delijic, K, Asanovic, V, Radonjic, D, Mechanical and corrosion properties of Aa8011 sheets and foils, Mat. Tech. 40(3) 83-88.

Borodiak, M, Pinheiro, F. P, and Pacs, Marcedo, (2012) Metallurgical characterization of Aluminium alloy by matrix dissolution, Light metal 2012, Ed. Carlou E. S, TMS.

Ney, J and Luiggi, A (1998) Charaterization by thermoelectric power of commercial aluminium- Iron- silicon alloy AA8011 during isothermal precipitation, Metall. Mater. Trans. 19A, 2669.

Oscarson , A, Lehtinen, B, Hutchinson, B, Ekstron, H. E, Bate, P, Haggstron, L, Ghandour, A. M (1994) in preceeding of the 4th International Conference on Aluminum alloys. Altlanta. Georgia, USA Vol. III, 144.

Anderson , B, Naess, S.E. (1987) in Proceedings of the 8th International Light Metals Congress, Leoben. Viena, (Aluminium Verglag GmbH), 526.

Marshall, G. J, Bolingbroke, R. K, Gray, A (1993) Microstructural control in aluminium core alloy for brazing sheet applications, Metallurg. Mat. Trans. A 1935-(1942).

Howe, J.M. (1986) Metallographical and differential scanning calorimetry analyses of precipitation and crystallization in an Al-Mn alloy, Metall. Trans. A. Vol. 17, Iss. 4, pp.593-605.

Show More Hide