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Nanostructured Materials

2012; Wiley; Volume: 14; Issue: 11 Linguagem: Inglês

10.1002/adem.201200306

1527-2648

Heinz Werner Höppel, Reinhard Pıppan, Christian Motz, Éric Le Bourhis,

Aluminum Alloys Composites Properties

Nanostructured materials are at the cutting edge of modern materials science. This new class of materials exhibit outstanding properties which make them very interesting for structural or functional engineering applications. Although, Herbert Gleiter's very well-known first publication in that field was already published in 1981 research activities are still necessary for a successful use of nanostructured materials. In this context, it is essential to understand the materials' behavior in detail and to know how to produce large quantities of nanostructured materials. Moreover, it is also essential to know how the materials properties are affected at small scales and by the processing parameters. The focus of the Symposia B15 “Ultrafine-grained Materials processed by Severe Plastic Deformation” and D22 “Mechanical characterization of small-scale structures and advanced nanostructured materials” within the EUROMAT 2011 Conference, exactly addressed these issues. 14 highlighted contributions have been selected for the current special issue on “Nanostructured materials” to inform about the current state of research. On the one hand in this issue, emphasis is laid on new developments in severe plastic deformation techniques, including new processing methods, advances in modeling and simulation of the severe plastic deformation processes, prediction of the microstructural evolution during SPD-processing, and industrial up-scaling strategies. Moreover, the correlation between SPD-processing parameters and the resulting materials properties are also addressed. On the other hand, the interaction between the obtained microstructure and the mechanical properties in NC/UFG materials and fundamental aspects of microstructural scale effects are addressed. Advanced testing methods including in situ probes are highlighted since they offer great insights into small-scale processes. Moreover, strategies to enhance the microstructural stability, new developments of tailoring/grading and functionalization of materials by SPD-processing as well as principal investigations on the deformation mechanisms in NC/UFG materials are also covered. Dr. Heinz Werner Höppel Institute I: General Materials Properties, Dept. of Materials Science and Engineering, University Erlangen-Nürnberg, Erlangen, Germany Prof. Reinhard Pippan Erich Schmidt Institute of Material Science of the Austrian Academy of Sciences, Leoben, Austria Prof. Christian Motz Erich Schmidt Institute of Material Science of the Austrian Academy of Sciences, Leoben, Austria present address: Chair of Material Science and Methods, Saarland University, Germany Prof. Eric Le Bourhis Institut P'CNRS, Université de Poitiers, ENSMA, Futuroscope Chasseneuil, France