State Key Laboratory of Multiphase Complex Systems;
Institute of Process Engineering;
Chinese Academy of Sciences;
Beijing 100190;
China;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
School of Mechanical and Mining Engineering;
University of Queensland;
Saint Lucia;
Queensland 4072;
Australia;
Department of Metallurgical;
Materials and Biomedical Engineering;
University of Texas at El Paso;
500 W University Avenue;
El Paso;
TX 79968;
USA;
Al-Si alloys; Heterogeneous nucleation; Ductility; Powder processing; Selective laser melting;