Quasicrystal strengthened Mg-Zn-Y alloys by extrusion

Alok Singh, M. Nakamura, M. Watanabe, A. Kato, A. P. Tsai

Research output: Contribution to journalArticlepeer-review

213 Citations (Scopus)

Abstract

The microstructure and strength of quasicrystal containing alloys Mg95Zn4.2Y0.8 (Alloy 1) and Mg92.5Zn6.4Y1.06 (Alloy 2) was studied after extrusion at 523 K. It was found that the icosahedral phase particles act as strong pinning centres for grain boundaries and dislocations. Precipitation of ternary phase τ1 and long β1 phase rods occurs, imparting good deformation behavior at 473 K.

Original languageEnglish
Pages (from-to)417-422
Number of pages6
JournalScripta Materialia
Volume49
Issue number5
DOIs
Publication statusPublished - 2003 Sep 1
Externally publishedYes

Keywords

  • Magnesium alloys
  • Mg-Zn-Y alloys
  • Quasicrystal
  • Tensile test
  • Transmission electron microscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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