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Effect of neodymium content on microstructure and mechanical properties of extruded Mg-8Gd-1Sm-0.5Zr alloy
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DOI：10.1016/j.jre.2026.07.005.png)
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Abstract
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• Nd addition remarkably refines the grain size and effectively suppresses the dynamic recrystallization of extruded Mg-8Gd-1Sm-0.5Zr alloy. • Nd triggers the massive precipitation of fine and dispersed Mg-RE second-phase particles in the alloy matrix. • The alloy with 2 wt.% Nd exhibits optimal mechanical properties and excellent high-temperature stability. • Fine-grain strengthening and second-phase strengthening act as the dominant strengthening mechanisms for the alloy.
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