FOR 544: Mechanical Properties and Interfaces in Ultrafine Grained Materials

超细晶（UFG）材料由于其独特的力学性能而在许多结构领域具有广泛的应用前景。然而，缺乏经过验证的模型似乎是广泛使用这些材料的主要障碍之一。因此，研究单位的目标是开发微观结构为基础的模型，允许预测的UFG材料的机械性能。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，以全面了解UFG材料的微观结构-性能-关系。这样一个广泛的研究计划是必要的，能够开发验证模型，可应用于UFG材料具有显着不同的应力-应变行为和损伤机制。

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.