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

doi:10.1016/j.msea.2007.10.031

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

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

22 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 language	English
Pages (from-to)	481-487
Number of pages	7
Journal	Materials Science and Engineering A
Volume	487
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2007.10.031
Publication status	Published - 2008 Jul 25

All Science Journal Classification (ASJC) codes

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

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10.1016/j.msea.2007.10.031

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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.",

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AU - Kim, Do Hyung

AU - Lee, Ju Yeon

AU - Lim, Hyun Kyu

AU - Kim, Won Tae

AU - Kim, Do Hyang

PY - 2008/7/25

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N2 - 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.

AB - 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.

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ER -

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

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