About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale VIII
|
| Presentation Title |
High Strain-Rate Behavior of Metal-Ceramic Nanolaminates by Laser-Induced Microprojectile Impact |
| Author(s) |
Jianxiong Li, Tang Qi, Nikhilesh Chawla, Mostafa Hassani |
| On-Site Speaker (Planned) |
Jianxiong Li |
| Abstract Scope |
Metal-ceramic nanolaminates offer high strength and toughness due to the combination of the nanocrystalline metallic and ceramic phases. While the deformation mechanisms of these nanolaminates under quasi-static stress conditions have been extensively studied, their deformation mechanisms under high strain rates are not well understood. Here we describe results on microprojectile impact experiments and nanoindentation to study the mechanical behavior of model Al-SiC nanolaminates with a range of layer thicknesses and over a wide range of strain rates, spanning from 10-1 to 108 s-1. While the hardness of Al-SiC nanolaminates strongly depended on layer thickness at low strain rates, the differences progressively decreased with increasing strain rate, ultimately converging under ultra-high strain rate impact. We discuss this behavior based on rate-dependent deformation mode transition in the materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Composites, Thin Films and Interfaces |