About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrafine-Grained and Heterostructured Materials (UFGH) XIV
|
| Presentation Title |
Effects of thermal annealing on the microstructural stability and mechanical behavior of Ti/Nb nanolaminates containing thick 3D Interfaces |
| Author(s) |
Courtney Archibald, Mauricio De Leo, Nico Fuchs-Lynch, Benjamin Derby, Irene J Beyerlein, Nathan Mara |
| On-Site Speaker (Planned) |
Courtney Archibald |
| Abstract Scope |
Interfaces in nanolayered metals govern plasticity by controlling interlayer dislocation motion. By introducing 3D chemically graded interfaces, resulting crystallographic and morphological gradients span several nanometers in all three directions. These complex microstructures enhance both strength and deformability. The thermal stability of such structures is much less-well known than the origins of strengthening. In this work, we investigate thermal stability and evolution of mechanical properties in 3D Ti/Nb nanolaminates. Differential Scanning Calorimetry (DSC) identified the key temperatures associated with phase transformations, microstructural recovery, and interfacial morphology changes. We then employed nanoindentation, micropillar compression, and TEM to assess mechanical behavior and microstructural evolution after annealing. This approach helps isolate thermally induced interfacial changes and their influence on hardness, flow stress, and offer further insights into the temperature-dependent performance limits of complex architectures. These findings further establish a framework for the design of tunable, thermally resilient nanolayered materials. |
| Proceedings Inclusion? |
Undecided |