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Microstructural characterisation and thermal stability of a metastable Mg-8.6 wt.% Zr alloy produced by physical vapour deposition

  • G. Garcés EMAIL logo , J. M. Antoranz , P. Pérez , J. M. Badía , S. B. Dodd , S. Morris and P. Adeva
Published/Copyright: February 4, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 94 Issue 8

Abstract

The thermal stability of a Mg-8.6 wt.% Zr alloy processed by physical vapour deposition has been studied using differential scanning calorimetry and transmission electron microscopy. The alloy, in the as-deposited condition, is a solid solution of Zr in the Mg matrix. The microstructure is characterised by elongated grains oriented with their [0001] direction parallel to the growth direction. After DSC experiments, three exothermic transformations have been observed. The first one takes place above the deposition temperature and is related to the recovery phenomena due to stress relaxation generated during the growth process. The second transformation corresponds to the breakdown of the solid solution by the precipitation of Zr in the Mg matrix. This reaction takes place in two stages: (i) Zr plates are formed in the basal plane and (ii) these initial precipitates grow along the [0001] direction. An epitaxial relationship between those Zr precipitates and the Mg matrix of [0001]Zr || [0001]Mg and [1120]Zr || [1120]Mg has been obtained. The third exothermic transformation appears above 720 K and is caused by the strong oxidation of the deposit.

Keywords: Physical vapour deposition; Mg–Zr alloy; Precipitation; Kinetics
Dr. G. Garcés Max-Planck-Institut für Metallforschung Heisenbergstr. 3, D-70569 Stuttgart, Germany Tel.: +49 711 689 3437 Fax: +49 711 689 3412 E-mail: garces@mf.mpg.de

  1. We gratefully acknowledge the support of the Community of Madrid, Spain (grant No. 07N1003611999).

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Received: 2003-02-18
Published Online: 2022-02-04

© 2003 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Articles/Aufsätze
  3. An atomistic Monte Carlo simulation of precipitation in a binary system
  4. Thermodynamic assessment of the Pd–Zr system
  5. Cyclic deformation and dislocation structure evolution of a copper bicrystal with components rotating gradually along the grain boundary
  6. Microstructural characterization of alloys of the quasibinary Cu–NiBe system
  7. Microstructural characterisation and thermal stability of a metastable Mg-8.6 wt.% Zr alloy produced by physical vapour deposition
  8. Development of microstructure in solution-heat-treated Mg-5Al-xCa alloys
  9. The effect of Ti alloying on the mechanical properties and microstructure of a Zn–Al–Cu–Mg alloy
  10. Dry wear response of a Zn-based alloy containing 37.5% Al as affected by sliding conditions
  11. Microstructure selection map for rapidly solidified Al-rich Al–Sr alloys
  12. Dependence of the microstructure, residual stresses and texture of AA 6013 friction stir welds on the welding proces
  13. The effect of carbon on the restoration phenomena during hot deformation of carbon steels
  14. Deformation behavior during hot torsion of an ultrahigh carbon steel containing 1.3 wt.% C
  15. Effect of impact damage on electrical resistivity of C/C–SiC composites
  16. Depth-resolved residual stress evaluation from X-ray diffraction measurement data using the approximate inverse method
  17. Combined scanning probe microscopy and electron microscopy study of microstructure evolution in copper processed by equal channel angular pressing
  18. Notifications/Mitteilungen
  19. Personal/ Personelles
  20. Information
  21. Books/Bücher
  22. Conferences /Konferenzen
https://doi.org/10.1515/ijmr-2003-0157
Keywords for this article
Physical vapour deposition; Mg–Zr alloy; Precipitation; Kinetics

Articles in the same Issue

  1. Frontmatter
  2. Articles/Aufsätze
  3. An atomistic Monte Carlo simulation of precipitation in a binary system
  4. Thermodynamic assessment of the Pd–Zr system
  5. Cyclic deformation and dislocation structure evolution of a copper bicrystal with components rotating gradually along the grain boundary
  6. Microstructural characterization of alloys of the quasibinary Cu–NiBe system
  7. Microstructural characterisation and thermal stability of a metastable Mg-8.6 wt.% Zr alloy produced by physical vapour deposition
  8. Development of microstructure in solution-heat-treated Mg-5Al-xCa alloys
  9. The effect of Ti alloying on the mechanical properties and microstructure of a Zn–Al–Cu–Mg alloy
  10. Dry wear response of a Zn-based alloy containing 37.5% Al as affected by sliding conditions
  11. Microstructure selection map for rapidly solidified Al-rich Al–Sr alloys
  12. Dependence of the microstructure, residual stresses and texture of AA 6013 friction stir welds on the welding proces
  13. The effect of carbon on the restoration phenomena during hot deformation of carbon steels
  14. Deformation behavior during hot torsion of an ultrahigh carbon steel containing 1.3 wt.% C
  15. Effect of impact damage on electrical resistivity of C/C–SiC composites
  16. Depth-resolved residual stress evaluation from X-ray diffraction measurement data using the approximate inverse method
  17. Combined scanning probe microscopy and electron microscopy study of microstructure evolution in copper processed by equal channel angular pressing
  18. Notifications/Mitteilungen
  19. Personal/ Personelles
  20. Information
  21. Books/Bücher
  22. Conferences /Konferenzen
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