About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Defects and Interfaces: Modeling and Experiments
|
Presentation Title |
Microstructural and Nanomechanical Characterization of Ti/Nb Nanolayered Materials Containing Thick 3D Interfaces |
Author(s) |
Mauricio De Leo, Justin Y. Cheng, Nicholas Fuchs-Lynch, Jon Kevin Baldwin, Irene Beyerlein, Nathan Mara |
On-Site Speaker (Planned) |
Mauricio De Leo |
Abstract Scope |
Nanolayered composites exhibit enhanced mechanical properties due to their high interfacial density. Tailoring the deposition parameters of the nanolaminate controls interfacial thickness and microstructure of the interface to determine the fundamental deformation physics behind interfacial strengthening of bimodal materials. We expand the interface in the out-of-plane direction (a 3D interface) via DC magnetron sputtering for hcp/bcc Ti/Nb nanolayered composites to enhance their mechanical behavior. We report a combination of Berkovich nanoindentation and micropillar compression for mechanical characterization, and STEM-EDS, Atom Probe Tomography, and Transmission electron microscopy to characterize interfacial structure and chemistry to determine the structure-property relationships leading to enhanced mechanical performance of nanocomposites containing 3D interfaces. We will discuss the mechanical behaviors of this class of materials in the context of dislocation-interface interactions including dislocation transmission, blocking, and storage. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Thin Films and Interfaces, Characterization |