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On the precipitation processes in commercial QE22 magnesium alloy

  • Osvaldo Agustin Lambri , Gabriel Julio Cuello , Werner Riehemann and Jose´ Lucioni
Published/Copyright: May 23, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 98 Issue 6

Abstract

Electrical resistivity measurements, differential thermal analysis, mechanical spectroscopy and small angle neutron scattering studies have been performed on commercial QE22 magnesium alloy. The aim of this work is to resolve the appearance of Guinier – Preston zones and also to survey the small angle neutron scattering technique for various temperatures in this alloy. The coupling of all the employed experimental techniques in this work is crucial for detecting the precipitation of the Guinier – Preston zones. This is due to the strong changes in the microstructure produced by the main precipitation process, which starts at about 440 K and ends at about 640 K. We found that the temperature at which Guinier – Preston zones start to grow is about 473 K and that the dissolution temperature is 537 K.

Keywords: Magnesium alloys; Phase transitions; Electrical resistivity; Thermal analysis; Small angle neutron scattering
* Correspondence address, Dr. Osvaldo Agustin Lambri, Instituto de Física Rosario – CONICET –, Facultad de Ciencias Exactas, Ingeniería y Agrimensura, Escuela de Ingeniería Eléctrica, Universidad Nacional de Rosario, Avda. Pellegrini 250, (2000) Rosario, Argentina, Tel.: +54 341 480 26 49, ext. 125., Fax: +54 341 480 26 54, E-mail:

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Received: 2006-10-26
Accepted: 2007-2-22
Published Online: 2013-05-23
Published in Print: 2007-06-01

© 2007, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.101493
Keywords for this article
Magnesium alloys; Phase transitions; Electrical resistivity; Thermal analysis; Small angle neutron scattering

Articles in the same Issue

  1. Contents
  2. Contents
  3. Basic
  4. The effect of bismuth segregation on the faceting of Σ3 and Σ9 coincidence boundaries in copper bicrystals
  5. Viscosity measurement of liquid ternary Cu–Ni–Fe alloys by an oscillating cup viscometer and comparison with models
  6. Isothermal oxidation behavior of a precipitation-hardened Pt-base alloy with additions of Al, Cr and Ni
  7. Bismuth activity measurements and thermodynamic re-optimization of the Ni–Bi System
  8. Modelling of the β → α + β transformation in a metastable β Ti alloy based on the growth kinetics and the morphology of the α plates
  9. The microstructure of ball milled nanocrystalline vanadium; variation of the crystal imperfection and the lattice parameter
  10. Study of interfacial reactions between Sn–Ag–Cu alloys and Au substrate
  11. Applied
  12. On the precipitation processes in commercial QE22 magnesium alloy
  13. Cyclic deformation behavior of deep rolled as-quenched aluminium alloy AA6110 at elevated temperatures
  14. Effect of Ho additions on the microstructure and mechanical properties of Nb-22Ti-16Si-7Cr-3Al-3Ta-2Hf alloys
  15. Improved mechanical properties of the high pressure die casting alloy AlSi9Cu3(Fe)(Zn) as a result of the combination of natural and artificial ageing
  16. Effect of quenching temperature on the microstructure and mechanical properties of Fe–B–Ti alloy
  17. A kinetic study of nickel coating on boron nitride micro-particles
  18. Thermal diffusivity measurements of some industrially important alloys by a laser flash method
  19. Notifications
  20. DGM News
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