Abstract
The corrosion properties of high-pressure die cast (HPDC) magnesium-rare earth (RE) based alloys have been studied. Binary additions of La, Ce and Nd to commercially pure Mg were made up to a nominal 6 wt.%. It was found that the intermetallic phases formed in the eutectic were Mg{sub 12}La, Mg{sub 12}Ce and Mg{sub 3}Nd, respectively. Results indicated that increasing RE alloying additions systematically increased corrosion rates. This was also described in the context of the electrochemical response of Mg-RE intermetallics - which were independently assessed by the electrochemical microcapillary technique. This study is a discrete effort towards revealing the electrochemical effect of carefully controlled binary alloying additions to magnesium in order to elucidate the microstructure-corrosion relationship more generally for HPDC Mg alloys. Such fundamental information is seen to not only be useful in understanding the corrosion of alloys which presently contain RE additions, but may be exploited in the design of magnesium alloys with more predictable corrosion behaviour. There is a special need to understand this relationship - particularly for magnesium that commonly displays poor corrosion resistance.
Birbilis, N;
[1]
CAST Co-operative Research Centre (Australia);
Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], E-mail: nick.birbilis@eng.monash.edu.au;
Easton, M A;
[2]
Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)];
Sudholz, A D;
[1]
Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)];
Zhu, S M;
[2]
Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)];
Gibson, M A;
[2]
CSIRO Division of Materials Science and Engineering (Australia)]
- ARC Centre of Excellence for Design in Light Metals, Monash University (Australia)
- CAST Co-operative Research Centre (Australia)
Citation Formats
Birbilis, N, CAST Co-operative Research Centre (Australia), Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], E-mail: nick.birbilis@eng.monash.edu.au, Easton, M A, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Sudholz, A D, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Zhu, S M, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Gibson, M A, and CSIRO Division of Materials Science and Engineering (Australia)].
On the corrosion of binary magnesium-rare earth alloys.
United Kingdom: N. p.,
2009.
Web.
doi:10.1016/j.corsci.2008.12.012.
Birbilis, N, CAST Co-operative Research Centre (Australia), Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], E-mail: nick.birbilis@eng.monash.edu.au, Easton, M A, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Sudholz, A D, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Zhu, S M, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Gibson, M A, & CSIRO Division of Materials Science and Engineering (Australia)].
On the corrosion of binary magnesium-rare earth alloys.
United Kingdom.
https://doi.org/10.1016/j.corsci.2008.12.012
Birbilis, N, CAST Co-operative Research Centre (Australia), Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], E-mail: nick.birbilis@eng.monash.edu.au, Easton, M A, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Sudholz, A D, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Zhu, S M, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Gibson, M A, and CSIRO Division of Materials Science and Engineering (Australia)].
2009.
"On the corrosion of binary magnesium-rare earth alloys."
United Kingdom.
https://doi.org/10.1016/j.corsci.2008.12.012.
@misc{etde_21173804,
title = {On the corrosion of binary magnesium-rare earth alloys}
author = {Birbilis, N, CAST Co-operative Research Centre (Australia), Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], E-mail: nick.birbilis@eng.monash.edu.au, Easton, M A, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Sudholz, A D, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Zhu, S M, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Gibson, M A, and CSIRO Division of Materials Science and Engineering (Australia)]}
abstractNote = {The corrosion properties of high-pressure die cast (HPDC) magnesium-rare earth (RE) based alloys have been studied. Binary additions of La, Ce and Nd to commercially pure Mg were made up to a nominal 6 wt.%. It was found that the intermetallic phases formed in the eutectic were Mg{sub 12}La, Mg{sub 12}Ce and Mg{sub 3}Nd, respectively. Results indicated that increasing RE alloying additions systematically increased corrosion rates. This was also described in the context of the electrochemical response of Mg-RE intermetallics - which were independently assessed by the electrochemical microcapillary technique. This study is a discrete effort towards revealing the electrochemical effect of carefully controlled binary alloying additions to magnesium in order to elucidate the microstructure-corrosion relationship more generally for HPDC Mg alloys. Such fundamental information is seen to not only be useful in understanding the corrosion of alloys which presently contain RE additions, but may be exploited in the design of magnesium alloys with more predictable corrosion behaviour. There is a special need to understand this relationship - particularly for magnesium that commonly displays poor corrosion resistance.}
doi = {10.1016/j.corsci.2008.12.012}
journal = []
issue = {3}
volume = {51}
place = {United Kingdom}
year = {2009}
month = {Mar}
}
title = {On the corrosion of binary magnesium-rare earth alloys}
author = {Birbilis, N, CAST Co-operative Research Centre (Australia), Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], E-mail: nick.birbilis@eng.monash.edu.au, Easton, M A, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Sudholz, A D, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Zhu, S M, Department of Materials Engineering, Monash University, Wellington Road, Clayton, Vic. 3800 (Australia)], Gibson, M A, and CSIRO Division of Materials Science and Engineering (Australia)]}
abstractNote = {The corrosion properties of high-pressure die cast (HPDC) magnesium-rare earth (RE) based alloys have been studied. Binary additions of La, Ce and Nd to commercially pure Mg were made up to a nominal 6 wt.%. It was found that the intermetallic phases formed in the eutectic were Mg{sub 12}La, Mg{sub 12}Ce and Mg{sub 3}Nd, respectively. Results indicated that increasing RE alloying additions systematically increased corrosion rates. This was also described in the context of the electrochemical response of Mg-RE intermetallics - which were independently assessed by the electrochemical microcapillary technique. This study is a discrete effort towards revealing the electrochemical effect of carefully controlled binary alloying additions to magnesium in order to elucidate the microstructure-corrosion relationship more generally for HPDC Mg alloys. Such fundamental information is seen to not only be useful in understanding the corrosion of alloys which presently contain RE additions, but may be exploited in the design of magnesium alloys with more predictable corrosion behaviour. There is a special need to understand this relationship - particularly for magnesium that commonly displays poor corrosion resistance.}
doi = {10.1016/j.corsci.2008.12.012}
journal = []
issue = {3}
volume = {51}
place = {United Kingdom}
year = {2009}
month = {Mar}
}