Paper Title:
TEM Investigations of Electron 21 Magnesium Alloy
  Abstract

The paper presents results of TEM investigations of Elektron 21 magnesium alloy in as cast condition and after heat treatment. The compositions of the Elektron 21 alloy used in the present study was Mg-2,7%wtNd-1,2%wtGd-0,47%wtZr. Solution heat treatment was performed at 520°C/8 h/water. Ageing treatments were performed at 200°C/4÷96h and 300°C/48h with cooling in air. The as-cast microstructure and microstructural evolution during heat treatment were examined by transmission electron microscopy. Samples were prepared using Gatan PIPS ion mill. Examinations were performed in a JEM 2010 ARP microscope. The microstructure of the cast alloy consists of a-Mg phase matrix with precipitates of Mg12(Ndx,Gd1-x) phase at grain boundaries. After solution treatment the Mg12(Ndx,Gd1-x) phase dissolved in the matrix. The ageing treatment applied after solution treatment with air-cooling caused precipitation of a β’ and β phases.

  Info
Periodical
Solid State Phenomena (Volume 130)
Edited by
Danuta Stróż & Małgorzata Karolus
Pages
175-180
DOI
10.4028/www.scientific.net/SSP.130.175
Citation
A. Kiełbus, "TEM Investigations of Electron 21 Magnesium Alloy", Solid State Phenomena, Vol. 130, pp. 175-180, 2007
Online since
December 2007
Export
Price
$32.00
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