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

新型Al-Sc合金激光粉末床熔合工艺优化

• 批准号: 578437-2022
• 负责人: Brochu, MathieuM
• 金额: $ 2.19万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=761061
• 关键词: Laser; powder; bed; fusion; process

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.

Sc是铝合金中一种极具吸引力的合金化元素，由于Al3Sc析出物的生长和晶粒度的细化而产生强化能力，但目前Sc的可获得性和成本限制了其作为合金元素的广泛应用。加拿大主要矿业公司最近宣布了一大批Sc储量，这将彻底改变Sc作为合金元素的可用性和市场现实。在目前的项目中，FusiA Impression 3D Métal Inc.对这一探索性项目感兴趣，以评估一种新的含Sc的铝合金的加工性和热处理性能，并与现有的高强度铝合金进行性能基准比较。在该项目中，除了强化潜力外，还将特别关注Sc的加入所提供的细化晶粒的控制，以评估是否可以降低/抑制开裂敏感性。FusiA Impression 3D Métal Inc.的最终目标是，一旦SC变得更容易获得，就评估并整合这种新的含Sc的合金，作为其3D打印解决方案组合的一部分。该项目将培训1名孟加拉大学学生和1名兼职PDF学生，1名Coop本科生参与。