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The effect of zinc addition on the microstructure and mechanical properties of Mg–7Y–3Sm–0.5Zr casting alloy was investigated. Creep test was carried out at 200–300 °C under 50-120 MPa. Within the limits of the creep test conditions used in this study, the creep activation energy of the investigated alloys was in the range of 156-221 kJ/mol. The microstructure evolution during creep was characterized...
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