Effect of alloying elements on corrosion behaviour of binary magnesium alloys

Cao, F., Shi, Z., Song, G-L., Liu, M. and Atrens, A. (2013). Effect of alloying elements on corrosion behaviour of binary magnesium alloys. In: Conference Proceedings: Corrosion & Prevention 2013. ACACP 2013: Corrosion & Prevention Annual Conference & Exhibition, Brisbane, Australia, (1-12). 10-13 November 2013.

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Name Description MIMEType Size Downloads
Author Cao, F.
Shi, Z.
Song, G-L.
Liu, M.
Atrens, A.
Title of paper Effect of alloying elements on corrosion behaviour of binary magnesium alloys
Conference name ACACP 2013: Corrosion & Prevention Annual Conference & Exhibition
Conference location Brisbane, Australia
Conference dates 10-13 November 2013
Proceedings title Conference Proceedings: Corrosion & Prevention 2013
Journal name Annual Conference Proceedings: Australasian Corrosion Association
Place of Publication Kerrimuir, VIC, Australia
Publisher Australasian Corrosion Association
Publication Year 2013
Sub-type Fully published paper
Open Access Status
ISSN 1328-3901
1442-0139
Start page 1
End page 12
Total pages 12
Collection year 2014
Language eng
Formatted Abstract/Summary
The corrosion behaviour of as-cast high-purity magnesium (HP Mg), as-cast and solution-heat-treated Mg-X alloys (X = 1% Mn, 5% Sn, 0.3% Ca, 5% Zn, 6% Al, 0.1% Zr, 0.3% Si, 0.1% Sr) was evaluated by PW (from weight loss), PAH (from evolved hydrogen volume) and Pi (from polarization curves) from immersion test in 3.5% NaCl solution saturated with Mg(OH)2. The corrosion rates of all the alloys were faster than that of HP Mg. There was a clear correlation between corrosion rates with type of alloying rather than the quantity of alloying. Although the solution heat treatment dissolved the second phase particles of the Mg-X alloys, there were some particles remaining in the microstructure. Therefore, the acceleration effect of the alloying elements can be interpreted as the mechanism of micro-galvanic corrosion caused by the particles.
Keyword Magnesium
Weight loss
SEM
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Presented during Stream D "Magnesium Alloys" as Paper 052.

 
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Created: Fri, 29 Nov 2013, 10:10:31 EST by Katie Gollschewski on behalf of Materials