High-strength aluminum alloys with tailor-made damping behavior for competitive sports sleds (T06#)

超细晶(UFG)铝合金的应用很少，部分原因是它们只能以相对较高的成本和小批量生产。竞技体育为新材料的应用提供了一个有趣的机会，而不需要大规模生产。该转让项目的目标是开发和提供新颖的高强度铝合金，用于(首次)作为职业运动员运动雪橇的结构元件。这就需要对UFG材料的减振性能进行详细的分析。雪橇运动员系统的振动需要最小化，以便在比赛条件下获得最佳性能(在转向能力和加速方面)。系统的结构单元设计需要考虑新型材料的减振性能、质量减轻以及损伤和失效方面。这项研究项目是与图林根雪橇运动俱乐部(负责培训部分德国S冬奥会运动员的协会)合作完成的，结合了运动器材的新工程设计和评估方法，以及材料科学研究，重点放在微观结构和减振行为上。

There is a lack of applications of ultrafine-grained (UFG) aluminum alloys, partly because they can only be produced at relatively high costs and in small volume. Competitive sports provide an interesting opportunity for the application of novel materials without a need for mass-production. The goal of this transfer project is to develop and provide novel, high-strength aluminum alloys for the (first-ever) use as structural elements in sports sleds for professional athletes. This requires a detailed analysis of the damping behavior of the UFG materials. Vibrations of the sled-athlete system need to be minimized for optimum performance (in terms of steering capabilities and acceleration) under race conditions. A systematic design of the structural elements needs to take into account damping behavior of the novel materials, mass reduction and damage and failure aspects. This research project, performed in collaboration with the Thuringia Sled Sports Club (the association in charge of training some of Germany¿s Winter Olympic Games athletes), combines novel engineering design and evaluation approaches for sports equipment, and materials science research with a focus on microstructures and damping behavior.