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Microstructure and phase composition in a die cast Mg–Nd alloy containing Zn and Zr

  • Galit Atiya , Menachem Bamberger and Alexander Katsman
Published/Copyright: July 27, 2012
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 103 Issue 10

Abstract

The microstructure of the as-cast Mg-3.1Nd-0.45Zr-0.25Zn (wt.%) alloy was investigated. It consists of α-Mg matrix, a divorced intergranular phase and small Zr-containing particles. Scanning electron microscopy equipped with energy dispersive spectroscopy analysis on transmission electron microscopy samples was carried out in order to eliminate the Mg matrix contribution to the quantitative analysis results and to reveal the intergranular phase composition which was found to be Mg12–xZnxNd (x ∼ 0.31) (space group I4/mmm) with a bct crystal structure. The lattice parameters (a = 1.029 nm and c = 0.591 nm) were found using X-ray diffraction with the least squares refinement technique. The combination of different characterization techniques indicates that Mg atoms are substituted by Zn atoms without a change in the crystal structure.

Keywords: Mg alloys; Rare earth additions; Mg12Nd; Zn
1 Correspondence address: Dr. Alexander Katsman, Department of Materials Engineering, TechnionHaifa 3200Israel, Tel.: +972-48294294, Fax: +972-48253213, E-mail:

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Received: 2011-11-17
Accepted: 2012-6-14
Published Online: 2012-07-27
Published in Print: 2012-10-01

© 2012, Carl Hanser Verlag, Munich

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https://doi.org/10.3139/146.110815
Keywords for this article
Mg alloys; Rare earth additions; Mg12Nd; Zn

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Phase equilibria in the Gd–Ni binary and Mg–Ni–Gd ternary systems
  5. Thermodynamics of dilute binary solid solutions using the cluster variation method
  6. Thermal stability of coherent Pd/TiAl interfaces studied from first-principles calculations and experiments
  7. Electropulsing-induced phase transformations and their effects on the single point diamond turning of a tempered alloy AZ91
  8. Study of the mechanism of ductile-regime grinding of SiCp/Al composites using finite element simulation
  9. Investigations on laser welding of magnesium alloys
  10. Investigation of the surface of a laser-treated cast iron cylinder bore
  11. Solidification behaviour of an AA5754 Al alloy ingot cast with high impurity content
  12. Study of the structural evolution of crystalline zinc oxide films prepared by PLD
  13. Effects of sintering temperature on pore characterization and strength of porous cordierite–mullite ceramics by a pore-forming in-situ technique
  14. Sol–gel synthesis of Eu3+, Tb3+ co-doped Y2O3 scintillating nanopowders
  15. Morphological study of SiC coating developed on 2D carbon composites using MTS precursor in a hot-wall vertical reactor
  16. Self-assembling behavior and corrosion inhibition properties of TDPA films on differently structured surfaces of 2024 and 1060 aluminum alloys
  17. Photocatalytic activity of MnWO4 powder in highly effective hydrogen generation from H2O and H2O2
  18. Rheology and microstructure of polymer-modified asphalt nanocomposites
  19. Short Communications
  20. Microstructure and phase composition in a die cast Mg–Nd alloy containing Zn and Zr
  21. DGM News
  22. DGM News
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