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In-situ neutron diffraction study of cryogenic deformation behavior in AZ31 magnesium alloy

Gong, W.   ; Harjo, S.   ; 眞山 剛*; 川崎 卓郎  ; 相澤 一也  ; 辻 伸泰*

Gong, W.; Harjo, S.; Mayama, Tsuyoshi*; Kawasaki, Takuro; Aizawa, Kazuya; Tsuji, Nobuhiro*

Magnesium and its alloys have potential for application in various fields, in which, the applications such as aerospace, storage, and transport of liquid cryogenics, require the materials to withstand high stress at extreme temperature. In present study, we conducted in-situ neutron diffraction experiments to investigate the cryogenic deformation behavior in a commercial extruded AZ31 Mg alloy. The neutron diffraction results demonstrate that the changes in activity of deformation modes are considered to be the reason for the simultaneous increase in strength and ductility of the commercial AZ31 alloy at cryogenic temperature.

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