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Ultrafine grains - a new option for light metals

Rosochowski, A. and Olejnik, L. (2009) Ultrafine grains - a new option for light metals. Materials Technology, 24 (3). pp. 139-142. ISSN 1066-7857

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Abstract

The potential of ultrafine grained light metals is reviewed. The fundamental metallurgical processes, microstructures developed and properties obtained are first considered. Methods employing severe plastic deformation to achieve ultrafine structures are described and the obstacles to their industrial scale exploitation discussed. Recent advances include the incremental equal channel angular pressing (I-ECAP) process developed at the University of Strathclyde. Ultrafine grained materials are currently utilised in sputtering targets and high value medical devices, but large potential markets exist in the leisure and sports sectors, and in the longer term for aerospace and automotive applications.