Corrosion Behavior of Ti-6Al-4V Alloy in Different Media
Abstract
In this work the corrosion behavior of Ti-6Al-4V alloy was studied by using galvanostatic measurements at room temperature in different media which includ sodium chloride (food salt), sodium tartrate (presence in jellies, margarine, and sausage casings,etc.), sodium oxalate (presence in fruits, vegetables,etc.), acetic acid (presence in vinegar), phosphoric acid (presence in drink), sodium carbonate (presence in 7up drink,etc.), and sodium hydroxide in order to compare.
Corrosion parameters were interpreted in these media which involve corrosion potential( Ecorr) and corrosion current density (icorr), since the results of (Ecorr) indicate that Oxalate ions are more corrosive than other materials while the results of (icorr) indicate that NaCl is more corrosive than other materials. Cathodic and Anodic Tafel slopes that were used to calculate the polarization resistance (Rp) to know which materials effect on Ti-6Al-4V alloy uses in dental materials and the results of (Rp) were: Na2CO3 >Oxalate >H3PO4 >CH3COOH >NaOH >Tartrate >NaCl.
The change in free energy (∆G) and rate of corrosion in (mpy) were calculated, and the results of rate indicate that increasing in the following sequences: NaCl>Tartrate >NaOH >Oxalate> CH3COOH> H3PO4> Na2CO3.
Downloads
References
[2] Smith BJ,Ducheyne P,Transitional Behavior in Ti-6AL-4V fretting corrosion , pages 12 published : Jan 1996 ,Source ; STP1272-EB .
[3] Latifa kivnani and abdelilah, corrosion inhibition of Titanium in Artificial saliva containing fluoride, Equip ď Electrochimic et matēriaux inorganiques Marco [email protected], 2004.
[4] M. Nakagawa, S. Matsuya, T. Shiraishi and M. Ohta, Journal of Dental Research, Vol. 78, 1568-1572, 1999
[5] http:/ www. Astm, org/ DIGITAL_LIBRARY/ STP/ SOURCE_ PAGES/STP 1272. Htm, p11, 2007.
[6] Heitz E. and Schwenk W., Br.Corrosion J., Vol.11, No.2, 1976.
[7] Shreir L.L. “Corrosion”, Metal/Environment reactions, second edition Vol.1, 1976.
[8] Saleh J.M., Al-Shama L. M., and Hikmat N.A., Corrosion Sci., Vol.27,pp.22, 1987.
[9] Saleh J. M., Saleh K. A., and Hikmat N. A., Iraqi J. Sci., Vol.36, pp.803, 1995.
Downloads
Published
Issue
Section
License
Copyright: Open Access authors retain the copyrights of their papers, and all open access articles are distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided that the original work is properly cited. The use of general descriptive names, trade names, trademarks, and so forth in this publication, even if not specifically identified, does not imply that these names are not protected by the relevant laws and regulations. While the advice and information in this journal are believed to be true and accurate on the date of its going to press, neither the authors, the editors, nor the publisher can accept any legal responsibility for any errors or omissions that may be made. The publisher makes no warranty, express or implied, with respect to the material contained herein.
