| Issue |
Metall. Res. Technol.
Volume 117, Number 2, 2020
|
|
|---|---|---|
| Article Number | 203 | |
| Number of page(s) | 9 | |
| DOI | https://doi.org/10.1051/metal/2020016 | |
| Published online | 30 March 2020 | |
Regular Article
Reinforcement of magnesium Elektron 21 with aluminium nitride (AlN) nanoparticles dispersed using a travelling magnetic field
1
Univ. Grenoble-Alpes / Grenoble-INP / CNRS, SIMaP,
38402
Saint Martin d’Hères, France
2
European Space Agency,
PO Box 299,
2200
AG Noordwijk, The Netherlands
* e-mail: Laurent.davoust@simap.grenoble-inp.fr
Received:
28
October
2019
Accepted:
2
March
2020
Magnesium alloy Elektron 21 is commonly used in aerospace structural parts in which good creep resistance and lightness are required. This alloy maintains good mechanical properties at temperatures as high as 200 °C. One mechanism with high potential for improving mechanical properties of magnesium alloys at a high temperature is dispersion-strengthening based on nanoparticles. In this paper, we analyse the properties of magnesium Elektron 21 samples solidified with nanoparticles of aluminium nitride dispersed by an electromagnetic stirring provided from a travelling magnetic field. X-ray tomography and X-ray spectrometry as well as compression tests at several temperatures (350, 400 and 450 °C) are carried out on samples containing the nanoparticles. The present study extends the knowledge on the processing by alternative techniques and on the enhancement of creep behaviour at higher temperatures for such metal matrix composites compared to previous studies.
Key words: metal matrix composites / electromagnetic stirring / creep resistance / hot deformation behaviour / constitutive equation / deformation activation energy
© M. Garrido et al., published by EDP Sciences, 2020
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