Corrosion behaviour in salt spray and in 3.5% NaCl solution saturated with Mg(OH)2 of as-cast and solution heat-treated binary Mg–X alloys: X = Mn, Sn, Ca, Zn, Al, Zr, Si, Sr

Cao, Fuyong, Shi, Zhiming, Song, Guangling, Liu, Ming and Atrens, Andrej (2013) Corrosion behaviour in salt spray and in 3.5% NaCl solution saturated with Mg(OH)2 of as-cast and solution heat-treated binary Mg–X alloys: X = Mn, Sn, Ca, Zn, Al, Zr, Si, Sr. Corrosion Science, 76 60-97. doi:http://dx.doi.org/10.1016/j.corsci.2013.06.030


Author Cao, Fuyong
Shi, Zhiming
Song, Guangling
Liu, Ming
Atrens, Andrej
Title Corrosion behaviour in salt spray and in 3.5% NaCl solution saturated with Mg(OH)2 of as-cast and solution heat-treated binary Mg–X alloys: X = Mn, Sn, Ca, Zn, Al, Zr, Si, Sr
Formatted title
Corrosion behaviour in salt spray and in 3.5% NaCl solution saturated with Mg(OH)2 of as-cast and solution heat-treated binary Mg–X alloys: X = Mn, Sn, Ca, Zn, Al, Zr, Si, Sr
Journal name Corrosion Science   Check publisher's open access policy
ISSN 0010-938X
1879-0496
Publication date 2013-11
Sub-type Article (original research)
DOI http://dx.doi.org/10.1016/j.corsci.2013.06.030
Volume 76
Start page 60
End page 97
Total pages 38
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Collection year 2014
Language eng
Formatted abstract
Highlights
• Each Mg–X alloy corroded faster than high-purity Mg.
• Alloys with high corrosion rates in immersion tests also had high salt spray corrosion rates.
• There was a clear correlation with type of alloying rather than quantity of alloying.

Corrosion of binary Mg–X alloys (as-cast and solution heat-treated) was characterised by immersion tests in 3.5% NaCl solution saturated with Mg(OH)2, and by salt spray. Alloys with high corrosion rates in immersion tests also had high corrosion rates in salt spray. Corrosion rates of the solution heat-treated alloys did not meet the expectation that they should be equal to or lower than those of high-purity Mg. There was circumstantial evidence that the higher corrosion rates were caused by the particles in the microstructure; the second phases had been dissolved. The corrosion rate of all alloys was faster than that of high-purity Mg.
Keyword A. Magnesium
B. Weight loss
B. SEM
B. EIS
B. Polarisation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
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Created: Mon, 28 Oct 2013, 15:58:40 EST by Dr Zhiming Shi on behalf of Materials