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Experimental study of the phase equilibria of the Ni – Zr system

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Published/Copyright: May 23, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 99 Issue 7

Abstract

The eutectic reaction between the NiZr and NiZr2 compounds in the Ni – Zr binary phase diagram was evaluated according to the previous experimental measurements and thermodynamic calculations. A discrepancy between the calculations and the measurements exists. In order to determine definitely this eutectic temperature, Ni – Zr alloys of the compositions 65, 68, 72 and 74 wt.% Zr were prepared by melting in an arc furnace under a purified argon atmosphere. The phase transformation temperature was measured by Differential Scanning Calorimetry using both alumina and zirconia crucibles. At heating rates of 5, 10 and 20 K min− 1, the eutectic temperature between the NiZr and NiZr2 compounds was determined consistently to be 1022 ± 5 °C. Zirconia crucibles can be used in Differential Scanning Calorimetry measurements of zirconium-containing alloys but only below 1170 °C.

Keywords: Ni – Zr binary; Eutectic temperature; Differential Scanning Calorimetry
* Correspondence address, Prof. Changrong Li School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P.R. China Tel.: +86 10 62333607 Fax: +86 10 62333772 E-mail:

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Received: 2007-11-17
Accepted: 2008-5-2
Published Online: 2013-05-23
Published in Print: 2008-07-01

© 2008, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.101698
Keywords for this article
Ni – Zr binary; Eutectic temperature; Differential Scanning Calorimetry

Articles in the same Issue

  1. Contents
  2. Contents
  3. Basic
  4. On the reaction scheme and liquidus surface in the ternary system Al–Si–Ti
  5. Experimental study of the phase equilibria of the Ni – Zr system
  6. Tensile behaviour of micro-sized copper wires studied using a novel fibre tensile module
  7. Dislocation densities in soft and hard oriented grains of compression deformed textured NiAl polycrystals
  8. The influence of plastic instabilities on the mechanical properties of a high-manganese austenitic FeMnC steel
  9. Modeling of isothermal bainite formation based on the nucleation kinetics
  10. Application of the Kaptay model in calculation of ternary liquid alloys' viscosities
  11. The influence of the austenite dispersion on phase transformation during the austempering of ductile cast iron having a dual matrix structure
  12. Effect of trace Ti on the microstructure and mechanical properties of AM50 alloy
  13. Applied
  14. Diffusion bonding of the Mo-base alloy TZM with interlayers
  15. Amorphization, nanocrystallization and magnetic properties of mechanically milled Sm–Co magnetic powders
  16. Wear behavior of plasma nitrided AISI 420 stainless steel
  17. Hot extrusion of α and α/β-brass alloys
  18. Role of surface texture and roughness parameters in friction and transfer layer formation under dry and lubricated sliding conditions
  19. The emergence and disappearance of a high density of microcracks in nitrided Fe-4.65 at.% Al alloy
  20. Notifications
  21. DGM News
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