Mechanical properties of Mg–Al–Ca alloy processed by hot extrusion

Hiroyuki Watanabe, Masahiro Yamaguchi, Yorinobu Takigawa, Kenji Higashi

doi:10.1016/j.msea.2006.12.130

Mechanical properties of Mg–Al–Ca alloy processed by hot extrusion

DOI Web Site Web Site 被引用文献18件

書誌事項

公開日: 2007-04

権利情報

https://www.elsevier.com/tdm/userlicense/1.0/

DOI

10.1016/j.msea.2006.12.130

公開者: Elsevier BV

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説明

Abstract Mechanical properties of hot extruded Mg–6 mass%Al–2 mass%Ca alloy were examined. The alloy was homogenized at 723 K for 24 h before extrusion in order to dissolve the second phase, Al 2 Ca. The grain size of the extruded sheet was 15 μm and spherical particles with the size of 1.5 μm were dispersed mainly in the grain boundaries. The ductility at room temperature was high compared with other magnesium alloys containing Ca. The ductility was enhanced at above 623 K. It was suggested that climb controlled dislocation creep could be a dominant deformation process at elevated temperatures and at around 10 −1 s −1 . The constitutive equation for high temperature deformation was also developed.