Structure and mechanical properties of cast quasicrystal-reinforced Mg-Zn-Al-Y base alloys

Guangyin Yuan, Kenji Amiya, Hidemi Kato, Akihisa Inoue

研究成果: Article査読

19 被引用数 (Scopus)

抄録

The structure and mechanical properties of Mg-Zn-Al-Y base cast alloys containing an icosahedral quasicrystal phase (i-phase) as a main strengthening phase were investigated. Mg-8Zn-4Al-xY base bulk alloys containing the i-phase were prepared by casting into a copper mold at moderate cooling rates. The Y addition was effective for decreasing the size of the i-phase and the increasing the homogeneity of its dispersed state. The mechanical properties examined by compression tests at room temperature were much superior to those of a conventional AZ91 Mg alloy. The creep tests at elevated temperatures indicated a promising high temperature creep resistance of the quasicrystal-reinforced Mg-Zn-Al-Y cast alloy. The strengthening mechanism was also discussed.

本文言語English
ページ(範囲)1531-1538
ページ数8
ジャーナルJournal of Materials Research
19
5
DOI
出版ステータスPublished - 2004 5

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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