Laser powder bed fusion process optimisation of new Al-Sc alloys

钪（Sc）是一种极具吸引力的合金元素，其强化性能主要表现在Al3Sc析出相的形成和晶粒的减小。目前，Sc的可获得性和成本限制了其作为合金元素的广泛应用。最近加拿大主要矿业公司宣布拥有大量的Sc储备，这将彻底改变Sc作为合金元素的可用性和市场现状。这一新技术将影响整个制造业。在目前的项目中，FusiA Impression 3D msamtal inc.对这个探索性项目感兴趣，以评估一种新的含sc铝合金的加工性、热处理性，并将其与现有高强度铝合金的性能进行基准测试。在该项目中，除了强化潜力之外，还将特别关注添加Sc所提供的晶粒细化控制，以评估是否可以降低/抑制开裂敏感性。FusiA Impression 3D msamtal inc.的最终目标是评估这种新的含Sc合金，如果有前景，一旦Sc变得更容易获得，就将其整合到他们的3D打印解决方案组合中。该项目将培养1名b孟名学生和1名兼职PDF，其中1名Coop本科生参与。

Scandium (Sc) is an attractive alloying element in aluminum alloys for its strengthening capability emerging from the development of Al3Sc precipitates and the grain size reduction.Currently, the availability and cost of Sc is preventing its wide utilisation as alloying element. The recent announce by key mining Canadian companies of a large reserve of Sc can totally transform the availability and market reality for Sc as alloying element. This new will influence the entire field of manufacturing.In the current project, FusiA Impression 3D Métal inc. is interested in this exploratory project, to evaluate a new Sc-containing aluminum alloy in terms of processability, heat treatability and to benchmark the performance with existing high strength aluminum alloys. In the project, in addition to the strengthening potential, a specific focus will be given on the control of the grain refinement provided by the addition of Sc, to evaluate if cracking susceptibility can be reduced/suppressed. The ultimate goal for FusiA Impression 3D Métal inc. is to evaluate and if promising, integrate this new Sc-containing alloy as part of their portfolio of 3D printing solutions, once Sc becomes more readily available.The project will train 1 MEng student and 1 part-time PDF, with the participation of 1 Coop undergraduate student.