About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanics at the Extremes: Bridging Length-Scales From Nanoscale to Bulk
|
| Presentation Title |
Multi-Scale Mechanical Microscopy using High-speed Nanoindentation |
| Author(s) |
Jeffrey M. Wheeler |
| On-Site Speaker (Planned) |
Jeffrey M. Wheeler |
| Abstract Scope |
Mechanical microscopy is an emerging technique using high-speed nanoindentation to map the mechanical behavior and extract phase-level properties from complex microstructures. Using displacement-controlled nanoindentation, microstructural features can be probed at multiple length scales by using indentation mapping with different lateral resolution, while holding the penetration depth/spacing ratio constant to prevent interactions. In this work, the mechanical response of case-hardened steel and additively manufactured steels are explored using multi-scale nanoindentation mapping over 3 orders of magnitude. Using machine learning algorithms, phase levels properties of individual microstructural features can be deconvoluted and extracted as a function of length scale. This provides valuable insights into mechanical behavior at both ‘bulk’ and microstructural length scales. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Mechanical Properties, Machine Learning |