Microstructure and mechanical properties of Mg-5Li-3Al-2Zn-xRE alloys

Wu RZ; Deng YS; Zhang ML

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Microstructure and mechanical properties of Mg-5Li-3Al-2Zn-xRE alloys

机译：Mg-5Li-3Al-2Zn-xRE合金的组织和力学性能

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Mg-5Li-3Al-2Zn-xRE alloys were prepared. The microstructure and mechanical properties of as-cast and wrought specimens were studied. RE elements in Mg-5Li-3Al-2Zn alloy cause the microstructure refinement and the formation of Al3La, which bring about the improvement of mechanical properties of alloys. The optimal RE content for Mg-5Li-3Al-2Zn alloy is 2 wt%, which makes the microstructure the finest and the mechanical properties the best. The further increase of RE content makes the microstructure be coarsened and the morphology of Al3La change from particular to rod-like and pearlite-like eutectic shape, leading to the poor mechanical properties of alloys.

机译：制备了Mg-5Li-3Al-2Zn-xRE合金。研究了铸态和锻造试样的显微组织和力学性能。 Mg-5Li-3Al-2Zn合金中的稀土元素引起组织细化和Al3La的形成，从而改善了合金的力学性能。 Mg-5Li-3Al-2Zn合金的最佳RE含量为2 wt％，这使得显微组织最细，机械性能最佳。 RE含量的进一步增加使组织粗化，Al3La的形态从特殊变为棒状和珠光体状的共晶形状，导致合金的机械性能较差。

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《Journal of Materials Science》 |2009年第15期|共8页
作者
Wu RZ; Deng YS; Zhang ML;
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正文语种 eng
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DYNAMIC RECRYSTALLIZATION; HOT-EXTRUSION; MAGNESIUM; AL; DESIGN; STEEL;

机译：动态再结晶;热挤压;镁;铝;设计;钢;

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Microstructure and mechanical properties of Mg-5Li-3Al-2Zn-xRE alloys

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