Effect of Al addition on the grain refinement and mechanical properties of as-cast Mg–5Y–4Sm alloys

In recent years, the utilization of Al as a grain refiner in Mg–RE alloys has gained widespread attention because of its advantages such as low cost. In this study, Mg–5Y–4Sm– x Al ( x  = 0, 0.6, 1.2 and 1.8 wt.%) alloys were fabricated, and high grain refinement efficiency of Al addition was obtain...

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