About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale VIII
|
| Presentation Title |
Plasticity in brittle intermetallics enabled by interfaces |
| Author(s) |
Ke Xu, Anand Mathew, Debargha Paul, Chao Shen, Xuanyu Sheng, Zhongxia Shang, Yifan Zhang, Haiyan Wang, Yashashree Kulkarni, Xinghang Zhang |
| On-Site Speaker (Planned) |
Ke Xu |
| Abstract Scope |
Intermetallics have garnered significant interest for advanced structural applications, due to their high strength and high melting temperature. However, the limited plasticity at room temperature has severely stunted their practical applications. Here, using CoAl 100 nm/X 10 nm nanolaminates as model systems, we demonstrate several strategies for improving plasticity of brittle B2 intermetallics via introducing different types of interfaces. In situ SEM micropillar compression studies show that these intermetallics achieve a synergy of high strength and plasticity. Post-deformation transmission electron microscopy (TEM) coupled with molecular dynamics (MD) simulations reveal the origin of plasticity. This study provides a fresh perspective for enhancing room temperature plasticity in a wide range of brittle intermetallic materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Modeling and Simulation, Thin Films and Interfaces |