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Phase diagram of the Al–Dy–Zr ternary system at 773 K

  • Zhaohua Hu , Yongzhong Zhan , Maoxing Ling , Yong Liang , Ya Liu , Shuangjie Wei and Yong Du
Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 103 Issue 7

Abstract

X-ray powder diffractometry, scanning electron microscopy, optical microscopy and differential thermal analysis were used for constructing the isothermal section of the Al–Dy–Zr system in the whole compositional range at 773 K. The existence of 13 binary compounds and 1 ternary compound, i.e. Al3Zr, Al2Zr, Al3Zr2, AlZr, Al3Zr4, Al2Zr3, AlZr2, AlZr3, α - Al3Dy, Al2Dy, AlDy, Al2Dy3, AlDy2, and Al30Dy7Zr3 were confirmed. The ternary compound Al30Dy7Zr3 has AuCu3 structure (space group Pm3m) with lattice parameter of a = 0.4206 nm. The isothermal section consists of 17 single-phase regions, 32 binary-phase regions and 16 ternary-phase regions. The homogeneity of Dy in the binary compounds Al3Zr, Al2Zr, Al3Zr2, and AlZr2 is determined to be 2 at.%, 3 at.%, 4 at.%, and 2 at.% Dy, respectively. The homogeneity range of Dy in Zr is up to v7 at.% Zr. The solid solubility of Zr in the binary compounds Al3Dy, Al2Dy, and AlDy is determined to be 2 at.%, 26 at.%, and 3 at.% Zr, respectively.

Keywords: Phase diagram; Al–Dy–Zr system; Solid solubility; X-ray diffraction
* Correspondence address Dr. Yongzhong Zhan College of Materials Science and Engineering Guangxi University, NanningGuangxi 530004, P.R. China Tel.: +867713233530 Fax: +867713233530 E-mail:

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Received: 2010-11-9
Accepted: 2012-1-11
Published Online: 2013-06-11
Published in Print: 2012-07-01

© 2012, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110706
Keywords for this article
Phase diagram; Al–Dy–Zr system; Solid solubility; X-ray diffraction

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Diffusivities and atomic mobilities in Cu-rich fcc Al–Cu–Mn alloys
  5. Phase transformations in non-isothermally annealed as-cast and cold-rolled AlMnScZr alloys
  6. High-temperature deformation behavior and thermal properties of an Ni30Co17Fe53 alloy
  7. Microstructural and mechanical properties of dual-phase steels welded using GMAW with solid and flux-cored welding wires
  8. Microstructure – wear performance relationship of hypoeutectic 15% Cr-2% Mo white iron
  9. The enhancement of wear properties of squeeze-cast A356 composites reinforced with B4C particulates
  10. Phase diagram of the Al–Dy–Zr ternary system at 773 K
  11. Calorimetric investigations of liquid gold–antimony–tin alloys
  12. Combustion synthesis and characterization of bulk nanostructured Ni50Al17Fe33 alloy
  13. Effect of sand blasting on structural, thermal, and mechanical properties of Zr58.3Cu18.8Al14.6Ni8.3 bulk metallic glass
  14. Studies of dynamic mass transfer at the slag–metal interface – Interfacial velocity measurements
  15. Structural and optical investigation of gadolinia-doped ceria powders prepared by polymer complex solution method
  16. Adsorption of bovine serum albumin onto titanium dioxide nanotube arrays
  17. CNT-based displacement sensor
  18. Non-covalent assembly of hybrid nanostructures of gold and palladium nanoparticles with carbon nanotubes
  19. Effect of solid content on performance of conductive silver paste for crystalline silicon solar cells
  20. Effect of inhomogeneous size and shape of graphite particles on the in-plane electrical conductivity of PP/G/CB composites
  21. The durability of fired brick incorporating textile factory waste ash and basaltic pumice
  22. DGM News
  23. DGM News
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