报告人单位：牛津大学，英国 （University of Oxford, Oxford, UK）

主办单位：上海大学材料学院

报告内容简介：The presentation will cover the development of novel Aluminium alloys matrix nanocomposites with combinations of reinforcement strategies at the nanoscale to target specific applications. Nanoreinforcements such as nanosizequasicrystalline and ceramic particlesor pure metals as plasticizers have been used in combination of a nanostructured Al based alloys matrixes to generate innovative Al metal matrix composites. The development of nanoquasicrystalline alloys from rapid solidification process such as melt spinning to bulk scale alloys and composites’ manufacturing will be discussed. Composites were manufactured severe plastic deformation processes such as extrusion and in some cases followed by rolling. The extrusion process on the nanocomposites containing plasticizers produces anisotropic composites with ductile fibres which improve ductility and toughness. Subsequent rolling has shown the enhancement of the strengthening properties of simple composites. The mechanical behaviour of the different nanocomposites has been studied and compared to high strength commercial Al alloys achieving a template of nanocomposites with an improved combined behaviour of mechanical properties as a function of the processing method.