Paper Title:
High Mechanical Properties of Cast Quasicrystal-Reinforced Mg-Alloys
  Abstract

Mg-8Zn-4Al-xY base alloys containing an icosahedral quasicrystal phase (i-phase) as a main strengthening phase were prepared by casting into a copper mould at moderate cooling rates. The Y addition was effective for decreasing the size of i-phase and the more homogeneousness of its dispersed state. The mechanical properties at room temperature were much superior to those of AZ91 alloy. The creep tests indicated a promising high temperature creep resistance of the quasicrystal-reinforced Mg-Zn-Al-Y cast alloy. The dislocation characteristic in crept specimens which containing i-phase and no i-phase was analyzed and strengthening mechanism was discussed.

  Info
Periodical
Materials Science Forum (Volumes 488-489)
Edited by
W.Ke, E.H.Han, Y.F.Han, K.Kainer and A.A.Luo
Pages
127-130
DOI
10.4028/www.scientific.net/MSF.488-489.127
Citation
G. Y. Yuan, W. J. Ding, K. Amiya, H. Kato, A. Inoue, "High Mechanical Properties of Cast Quasicrystal-Reinforced Mg-Alloys", Materials Science Forum, Vols. 488-489, pp. 127-130, 2005
Online since
July 2005
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$32.00
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