Additive manufacturing not only offers the ability of constructing complex structural components but also creating strong and more durable parts than any other existing fabrication methods. In addition, it opens a novel research direction in developing new materials specifically for additive manufacturing beside the current wrought and cast materials. The present research attempted to produce an aluminum–magnesium-scandium alloy for selective laser melting. Nearly full dense samples were achieved through the process optimization. Significantly high mechanical strengths as-printed condition (450 MPa) with high ductility (26%) were obtained. This could be explained through super-fine and hierarchically graded microstructure and the formation of rod bundles in the melt-pool.

增材制造不仅提供了构造复杂结构部件的能力，而且还提供了比任何其他现有制造方法都坚固且更耐用的零件。此外，它为开发专门用于增材制造的新材料以及当前的锻造和铸造材料开辟了新的研究方向。本研究试图生产用于选择性激光熔化的铝镁scan合金。通过工艺优化获得了几乎完全稠密的样品。获得了印刷条件下显着的高机械强度（450 MPa）和高延展性（26％）。这可以通过超细和分级分级的微观结构以及熔池中棒束的形成来解释。