|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Bulk Processing of Nanostructured Powders and Nanopowders by Consolidation
||The Key Issues in Fabrication of Ultrafine Structured Metallic Materials and Metal Matrix Nanocomposites by Thermomechanical Consolidation of Nanostructured Powders
||Deliang Zhang, Dengshan Zhou, Jiamiao Liang, Xun Yao, Yifeng Zheng
|On-Site Speaker (Planned)
Themomechanical consolidation of nanostructured metallic and metal matrix nanocomposite powders is an effective way of fabricating bulk nanostructured and ultrafine structured metallic materials and metal matrix nanocomposites which has been widely used. There are several key issues which needs to be addressed in using the process: (i) growth of old grains, recrystallization and growth of new grains during heating and plastic deformation; (ii) ceramic nanoparticle coarsening during heating and plastic deformation; (iii) the increase of the strength of inerparticle boundaries (IPBs); (iv) the transfer of IPBs intro grain boundaries (GBs) and interfaces between different phases (IDPs); and (v) the contributions and effects of different microstructural features on mechanical properties. This talk is to present the findings on this topic from our own work on consolidation of nanostructured Cu-5vol.%Al2O3 nanocomposite, A356 alloy, Al6063-5vol.%SiC nanocomposite powders and those from literature on this topic, and discuss how these issues can be addressed.
||Planned: A print-only volume