Corrosion behaviour of high purity Mg, ZE41 and AZ91 in a buffer-regulated Hank's solution in dependence of the chloride ion concentration

Taltavull, C., Shi, Z., Torres, B., Rams, J. and Atrens, A. (2013). Corrosion behaviour of high purity Mg, ZE41 and AZ91 in a buffer-regulated Hank's solution in dependence of the chloride ion concentration. In: Proceedings of EUROCORR 2013. EUROCORR 2013: European Corrosion Congress, Estoril, Portugal, (1639-1639). 1-5 September, 2013.

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Name Description MIMEType Size Downloads
Author Taltavull, C.
Shi, Z.
Torres, B.
Rams, J.
Atrens, A.
Title of paper Corrosion behaviour of high purity Mg, ZE41 and AZ91 in a buffer-regulated Hank's solution in dependence of the chloride ion concentration
Conference name EUROCORR 2013: European Corrosion Congress
Conference location Estoril, Portugal
Conference dates 1-5 September, 2013
Convener European Federation of Corrosion
Proceedings title Proceedings of EUROCORR 2013
Publication Year 2013
Sub-type Poster
Open Access Status
ISBN 9789899885004
Start page 1639
End page 1639
Total pages 1
Collection year 2014
Language eng
Formatted Abstract/Summary
The influence of chloride ion concentration on the corrosion behaviour of high purity (HP) Mg, ZE41 and AZ91 in Hank’s solution was studied using hydrogen evolution and weigh loss measurements. The pH was maintained at a constant physiological pH of 7.3 by the same buffer system as in blood, by bubbling through the solution CO2 at a partial pressure of 0.9 atm. The buffer is the CO2 interacting with the 4.2 mmol L-1 NaHCO3 in the Hank’s solution. Chloride concentrations studied were 0, 0.1, 0.14 (commercial Hank’s solution), 0.3 and 1 M. The corrosion behaviour in simulated body fluid is consistent with the current understanding that the corrosion behaviour of magnesium alloys is governed by a partially protective surface film, and the fact that chloride ions cause film breakdown and an increase of the corrosion rate. The Ca and phosphate ions in Hank’s solution play an important role in the protective properties of the surface film formed in Hank’s solutions.
Q-Index Code EX
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Presented as Poster P-1639.

Document type: Conference Paper
Collections: School of Mechanical & Mining Engineering Publications
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Created: Thu, 30 Jan 2014, 10:01:31 EST by Deanna Mahony on behalf of School of Mechanical and Mining Engineering