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

超细晶（UFG）铝合金缺乏应用，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，而无需大规模生产。该转让项目的目标是开发和提供新型高强度铝合金，（首次）用作专业运动员运动雪橇的结构元件。这需要对UFG材料的阻尼行为进行详细的分析。雪橇运动员系统的振动需要最小化，以在比赛条件下获得最佳性能（在转向能力和加速度方面）。结构元件的系统设计需要考虑新型材料的阻尼行为、质量减少以及损伤和失效方面。该研究项目与图林根雪橇运动俱乐部（负责训练德国冬季奥运会运动员的协会）合作进行，结合了运动设备的新工程设计和评估方法，以及材料科学研究，重点是微观结构和阻尼行为。

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.