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Journal Articles Journal of Magnesium and Alloys Year : 2020

Study of Mg–Al–Ca magnesium alloy ameliorated with designed Al8Mn4Gd phase

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Abstract

To investigate the effect of Al 8 Mn 4 Gd phase on microstructural and mechanical properties of Mg-Al-Ca magnesium alloy, two Mg-2.5Al 2 Ca and Mg-2.5Al 2 Ca-0.1Al 8 Mn 4 Gd alloys were designed and compared in this work. The results show that a small amount of Gd can significantly refine α-Mg grains and change the morphology of Al 2 Ca particles. Indeed, the formed Al 8 Mn 4 Gd phase could serve as a heterogeneous nucleation site for the α-Mg grains and Al 2 Ca particles. Furthermore, the introduction of Gd not only optimized the mechanical properties of Mg-Al-Ca alloy, but also facilitated the thermal deformation (such as hot rolling).
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Dates and versions

hal-03039711 , version 1 (04-12-2020)

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Chaosheng Ma, Wenbo Yu, Xufeng Pi, Antoine Guitton. Study of Mg–Al–Ca magnesium alloy ameliorated with designed Al8Mn4Gd phase. Journal of Magnesium and Alloys, 2020, 8 (4), pp.1084-1089. ⟨10.1016/j.jma.2020.08.009⟩. ⟨hal-03039711⟩
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