|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Ultrafine Grained Materials IX
||Recrystallization during Thermomechanical Consolidation of Nanostructured Metallic and Metal Matrix Nanocomposite 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 nanocomposite. Due to the large amount of stored energy in the nanostructured metallic and metal matrix nanocomposite powders and the large amount of plastic deformation of the powder particles, dynamic recrystallizaiton and rapid growth of the new grains occurs during the thermomechanical consolidation process, and they dictate the grain size and grain size distribution of the consolidated microstructure. Dynamic coarsening of ceramic nanoparticles also occurs during the process. 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 the effects of various factors such as temperature and nanoparticles.