FOR 544: Mechanical Properties and Interfaces in Ultrafine Grained Materials

与传统材料相比，超细晶材料以其独特的力学性能在许多结构应用中具有很大的吸引力。然而，缺乏经过验证的模型似乎是这些材料广泛使用的主要障碍之一。因此，研究单位的目标是开发基于微观结构的模型，以预测UFG材料的机械行为。该研究将涵盖不同的合金和生产方法，并采用详细的机械和微观结构表征研究，以建立对UFG材料微观结构-性能关系的透彻理解。如此广泛的研究计划是必要的，以便能够开发可应用于具有完全不同的应力-应变行为和损伤机制的UFG材料的验证模型。

Ultrafine grained (UFG) materials are attractive for many structural applications because of their interesting mechanical properties as compared with conventional materials. However, the lack of validated models appears to be one of the key roadblocks to the widespread use of these materials. Thus, the Research Unit aims at developing microstructurally based models that allow for prediction of the mechanical behaviour of UFG materials. The research will cover different alloys and production methods and employ detailed mechanical and microstructural characterisation studies in order to establish a thorough understanding of microstructure-property-relationships in UFG materials. Such a broad research programme is necessary to be able to develop validated models that can be applied to UFG materials with substantially different stress-strain behaviour and damage mechanisms.