Effect of Al addition on the elevated temperature deformation behavior of Mg-Zn-Y alloy

Do Hyung Kim, Ju Yeon Lee, Hyun Kyu Lim, Won Tae Kim, Do Hyang Kim

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The effect of the addition of Al on the high temperature deformation behavior of wrought Mg-4Zn-0.8Y alloy has been investigated. The addition of Al significantly improves the high temperature formability, i.e. increases elongation from 260% to 370% under a strain rate of 1 × 10-4 s-1 at 300 °C. Strain rate sensitivity measured at different strain rates shows that the addition of Al induces the transition of high temperature deformation mechanism from dislocation creep mode to grain boundary sliding mode. Effect of alloying elements and microstructural evolution including the role of icosahedral-phase during deformation are discussed.

Original languageEnglish
Pages (from-to)481-487
Number of pages7
JournalMaterials Science and Engineering A
Volume487
Issue number1-2
DOIs
Publication statusPublished - 2008 Jul 25

All Science Journal Classification (ASJC) codes

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

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