| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrafine-grained and Heterostructured Materials (UFGH XI)
|
| Presentation Title |
Understanding Deformation Behaviors of Laminated Al-AL2Cu Eutectic Alloy |
| Author(s) |
Jian Wang |
| On-Site Speaker (Planned) |
Jian Wang |
| Abstract Scope |
Composites composed of alternate metal (soft) and intermetallic or ceramic (hard) lamellae can exhibit high strength, high strain hardening rate and measurable plasticity at room temperatures. Strain hardening develops in the soft phase, and high stress develops in the hard phase. The high stress in hard phase may trigger uniformly or localized shear (referred to as plastic co-deformation) or cracking in hard phase (referred to as failure). Cracks in hard phase initiate by the increased tensile stress due to loading transfer in tension test or bending induced tensile stress in compression test. These mechanical behaviors are strongly related to the plastic deformability and the layer thickness of the hard phase. Taking the Al-Cu eutectic alloy as an example, we demonstrated these deformation behaviors and corresponding mechanisms using multiscale experiments and modeling, and revealed unusual slip planes in hard Al2Cu phase and buckling occurrence at large compression but no cracking. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume |