Caracterización microestructural y estabilidad térmica de la aleación Mg-23 %wt Zr sintetizada mediante Deposición Física en Fase Vapor (PVD)W

G. Garcés; P. Pérez; P. Adeva

doi:10.3989/revmetalm.2003.v39.i1.313

Microstructural characterisation and thermal stability of Mg-2.3 %wt Zr alloy synthetised by Physical Vapour Deposition (PVD)

Authors

G. Garcés Dpto. Metalurgia Física. CENIM (CSIC)
P. Pérez Dpto. Metalurgia Física. CENIM (CSIC)
P. Adeva Dpto. Metalurgia Física. CENIM (CSIC)

DOI:

https://doi.org/10.3989/revmetalm.2003.v39.i1.313

Keywords:

Magnesium alloys, PVD, Precipitation, Kinetic

Abstract

The objective of this work has been the study of the microstructure and the thermal stability of the alloy Mg-2.3 %Zr grown by Physical Vapour Deposition. This study has been carried out by Differential Scanning Calorimetry and Transmission Electron Microscopy. The alloy in the "as-deposited" condition consists of a solid solution of zirconium atoms in the magnesium matrix. The microstructure of the alloy is characterised by elongated grains oriented in the growth direction. These grains grow with the [0001] direction parallel to the deposit growth direction. During a continuous heating, the deposit shows three exothermal transformations which have been associated with a recovery process, the zirconium precipitation in the magnesium matrix and oxidation at high temperatures. The activation energy for the precipitation reaction calculated from Kissinger analysis is 139 kjmol^-1.

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Published

2003-02-28

How to Cite

Garcés, G., Pérez, P., & Adeva, P. (2003). Microstructural characterisation and thermal stability of Mg-2.3 %wt Zr alloy synthetised by Physical Vapour Deposition (PVD). Revista De Metalurgia, 39(1), 17–24. https://doi.org/10.3989/revmetalm.2003.v39.i1.313

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Issue

Vol. 39 No. 1 (2003)

Section

Articles

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