An innovative specimen for Mg corrosion studies

Shi, Zhiming and Atrens, Andrej (2011). An innovative specimen for Mg corrosion studies. In: Hajo Dieringa, Norbert Hort and Karl Ulrich Kainer, Light Metals Technology V: Selected, peer reviewed papers from the 5th International Conference on Light Metals Technology. 5th International Conference on Light Metals Technology, Luneburg, Germany, (365-368). 19-22 July 2011.

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Author Shi, Zhiming
Atrens, Andrej
Title of paper An innovative specimen for Mg corrosion studies
Conference Paper Type Fully Published Paper
Conference name 5th International Conference on Light Metals Technology
DOI 10.4028/www.scientific.net/MSF.690.365
Conference location Luneburg, Germany
Conference dates 19-22 July 2011
Proceedings title Light Metals Technology V: Selected, peer reviewed papers from the 5th International Conference on Light Metals Technology    (ERA 2010 Rank C)   Check publisher's open access policy
Journal name Materials Science Forum    (ERA 2010 Rank C)   Check publisher's open access policy
Editor Hajo Dieringa
Norbert Hort
Karl Ulrich Kainer
Place published Stafa-Zurich, Switzerland
Publisher Trans Tech Publications
Publication date 2011
Volume number 690
ISBN *****************
ISSN 0255-5476
Start page 365
End page 368
Total pages 4
Collection year 2012
Language eng
Formatted Abstract/Summary Plug-in specimens enable measurement of reliable Mg polarization curves. Cathodic
polarization curves were measured for high purity Mg in 3.5% NaCl saturated with Mg(OH)2 using
(i) mounted specimens and (ii) plug-in specimens. Polarization curves yielded the corrosion current
density icorr and the corresponding corrosion rate Pi, which was compared with corrosion rates
evaluated from hydrogen evolution, PH, and weight loss, PW. Mounted specimens produce Pi values
three times larger than plug-in specimens, due to crevice corrosion in the mounted specimens. Plugin
specimens had no crevice and allow simultaneous measurement of PH and Pi. Pi was less than PH
and indicated an apparent valence of 1.45 in support of the existence of the uni-positive Mg+ ion.
Keyword A. magnesium
B. polarization
SEM
Weight loss
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Sub-type: Fully Published Paper
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
 
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Created: Thu, 01 Dec 2011, 13:03:12 EST by Viviane Victoria Crosthwaite on behalf of Faculty Of Engineering, Architecture & Info Tech