Aluminium alloy development for 3-D Printing

用于 3D 打印的铝合金开发

• 批准号: 2688985
• 金额: --
• 依托单位: Brunel University London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2688985
• 关键词: Aluminium; alloy; development; Printing

It is a very interesting project and I believe new high-performance aluminium alloys specially designed for AM is vital for the next generation of aluminium additive components. The reason is that currently, limited aluminium alloys are available for 3D printing of aluminium alloys in the market. Existing cast alloys such as Al10SiMg and A357 print well but these alloys are limited in terms of performance. Traditional high performance wrought alloys such as 2024, 6061 and 7075 can not be printed because they are susceptible to hot cracks during AM.Optimisation of existing alloys has been done by several research groups and companies. The first approach in optimisation of exciting alloys for AM was adding grain refiner to existing alloys. For example, Airbus has developed Scalmalloy by adding Scandium to 5000 series aluminium alloys. HRL lab has added Zr to 7000 series Al alloys. Primary Al3Zr and Al3Sc act as grain refiner in these alloys and printability slightly improve, However, fine feature printability and printing complex shape geometry, out of these alloys is still a challenge.

这是一个非常有趣的项目，我相信专为AM设计的新型高性能铝合金对于下一代铝添加剂组件至关重要。原因是目前市场上可用于3D打印铝合金的铝合金有限。现有的铸造合金如Al10SiMg和A357打印良好，但这些合金在性能方面受到限制。传统的高性能锻造合金，如2024，6061和7075不能打印，因为它们在AM期间容易出现热裂纹。几个研究小组和公司已经对现有合金进行了优化。优化AM激发合金的第一种方法是在现有合金中加入晶粒细化剂。例如，空中客车公司通过将钪添加到5000系列铝合金中来开发Scalmalloy。HRL实验室已将Zr添加到7000系列铝合金中。初级Al3Zr和Al3Sc在这些合金中起到晶粒细化剂的作用，并且印刷适性略有改善，然而，这些合金的精细特征印刷适性和印刷复杂形状几何形状仍然是一个挑战。