Microstructural Design of Bulk Ultra-fine Grained .. (BUNSMAT)
Microstructural Design of Bulk Ultra-fine Grained and Nanostructured Materials for High Performance Applications
Date du début: 6 mai 2013,
Date de fin: 5 mai 2017
"Bulk ultra-fine grained (UFG) and nanostructured (NS) materials have attracted immense interest in recent years due to the paramount goal of achieving simultaneous increase in strength and ductility. A unique method for obtaining these materials is the utilization of severe plastic deformation for structural refinement. Despite their technological importance in industries ranging from automotive and aerospace to energy and biomedical; efforts on difficult-to-work hexagonal close packed (hcp) materials have been comparably limited in quantity and scope.Robust utilization of UFG-NS materials in engineering applications will not be possible without exploring the mechanical behavior within given operation envelopes, typically not limited to ambient or monotonic conditions. This project aims to investigate the monotonic-cyclic response of severely deformed hcp materials by exhibiting the interplay of unique deformation mechanisms at the micro-nano scale, and strengthen the understanding of their effects on the observed mechanical behavior. With the aid of novel characterization techniques, trends in the processing-structure-property relations among the model materials will be demonstrated. These will be incorporated in physically sound constitutive models for improving the predictive capabilities. Ultimately, these efforts will fill in the crucial missing gap between engineered microstructures and envisaged applications for European competitiveness and welfare.Over the last decade, the PI has experienced with multiple projects in quest for fabricating, characterizing and modeling high performance advanced materials. The current proposal facilitates bringing this expertise on the processing intricacies, characterization techniques, plasticity modeling and applications of severely deformed materials to the dynamic ERA. In this endeavor, the availability of the CIG will be of vital importance, providing seamless knowledge transfer and sustainability of research efforts."
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