Paper Title:
Mechanical Properties and Microstructure of Mg-Zn-Y Alloys Processed by ECAE
  Abstract

Development of high strength I/M Mg alloys has been tried by ECAE processing. The mechanical properties and microstructure of ECAE-processed Mg97Zn1Y2 alloy with LPSO (long-periodic stacking ordered) structure were investigated. The tensile yield strength and elongation of as-cast Mg97Zn1Y2 were improved substantially by ECAE process. ECAE-processed with yield strength of 290 MPa and elongation of 22 % was obtained. The microstructure of ECAE-processed Mg97Zn1Y2 alloy consisted of refined α-Mg with the grain size around 6.5 μm and finely dispersed LPSO phase. Furthermore, the some texture was formed by ECAE process. The improved mechanical properties seem to be originated by the microstructure refinement and texture.

  Info
Periodical
Materials Science Forum (Volumes 503-504)
Edited by
Zenji Horita
Pages
769-774
DOI
10.4028/www.scientific.net/MSF.503-504.769
Citation
S. Yoshimoto, Y. Miyahara, Z. Horita, Y. Kawamura, "Mechanical Properties and Microstructure of Mg-Zn-Y Alloys Processed by ECAE", Materials Science Forum, Vols. 503-504, pp. 769-774, 2006
Online since
January 2006
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Price
$32.00
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