| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Heterostructured and Gradient Materials (HGM VI): Principle, Processing and Properties
|
| Presentation Title |
Tailoring Mechanical Behavior in Ti/Nb Nanolayered Composites via Thick 3-Dimensional Interfaces |
| Author(s) |
Mauricio De Leo, Nicholas Fuchs-Lynch, Benjamin Derby, Jon Kevin Baldwin, Jonathan Poplawsky, Irene Beyerlein, Nathan Mara |
| On-Site Speaker (Planned) |
Mauricio De Leo |
| Abstract Scope |
Nanolayered composites are renowned for their superior mechanical properties, primarily attributed to their high interfacial density. We fine-tuned the deposition parameters of Ti/Nb nanolaminates to introduce chemical gradients affecting interfacial thickness and microstructure. In our research, we created 3D interfaces between hcp Ti and bcc Nb using DC magnetron sputtering, resulting in enhanced deformability and plasticity. This study extensively involves characterization of the gradient structures between pure constituents, employing a combination of Berkovich nanoindentation and micropillar compression for mechanical characterization. Furthermore, quantitative analysis of crystallography, texture, chemical environment, and topography was conducted via 2D-XRD, Atom Probe Tomography, and nanobeam diffraction. These techniques help elucidate the structure-property relationships that lead to enhanced mechanical performance of nanocomposites. Our results represent a significant step forward in fundamentally understanding the underlying physics of interfacial mechanics and defect-interface interactions in complex systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Thin Films and Interfaces, Characterization |