About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fracture and Deformation Across Length Scales: Celebrating the Legacy of William Gerberich
|
| Presentation Title |
Interface-Driven Strength and Fracture Behavior in Ni-Al Multilayers: Insights from Micromechanical Testing |
| Author(s) |
Ruth Schwaiger, Peter Nellessen, Xi Li, Nicolas J. Peter |
| On-Site Speaker (Planned) |
Ruth Schwaiger |
| Abstract Scope |
Interfaces play a pivotal role in governing the mechanical behavior of nanoscale materials, influencing not only their strength but also their fracture resistance. With the goal to understand deformation and failure at small scales, this presentation explores metallic multilayers as a platform for tuning interfacial properties. Using advanced micromechanical testing, we have investigated Ni-Al metallic multilayers with nanometer-scale periodicity as a model system for interface engineering. Our findings indicate that ordering at interfaces impedes dislocation motion, leading to significant strengthening beyond classical confinement effects. Using focused ion beam fabrication and in-situ micromechanical testing, we probe the role of the interfaces in altering deformation and failure modes. This study connects fundamental insights on interface mechanics with strategies for developing robust, nanostructured materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Mechanical Properties, Characterization |