| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2020)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2020)
|
| Presentation Title |
Plasticity Improvement of CNTs/Mg Nanocomposite Materials Processed by Combining Friction Stir Processing and Ultrasonic Assisted Extrusion |
| Author(s) |
Qian Zhang, Lehua Qi, Jiming Zhou, Jun Luo, Junhao Liang |
| On-Site Speaker (Planned) |
Jiming Zhou |
| Abstract Scope |
It is hard to maintain high plasticity for metal matrix composite while increasing their mechanical properties. A novel process for preparing carbon nanotubes (CNTs) reinforced magnesium nanocomposites (CNTs/Mg) were developed, which combined friction stir processing (FSP) and ultrasonic assisted extrusion. It is interesting that the mechanical property of CNTs/Mg nanocomposite materials is improved greatly compared to the supplied Mg alloy at the same time while the plasticity is preserved. The plasticity improvement mechanism is explained from the effect of interface bonding and the liquid-solid extrusion process by different microstructure analysis. HRTEM analysis shows that the Al2MgC2 phase at some interfaces between Mg matrix and CNTs are formed which contributes to good composite interface bonding. Liquid-solid extrusion process can densify the composite and generate sever plastic deformation which is very useful for the plasticity improvement. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |