| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
|
| Presentation Title |
Small-scale Mechanical Testing of Material Interfaces Enabled by Site-specific Femtosecond Laser Machining |
| Author(s) |
Brian E. Schuster, Jorge Acosta, David Santacruz, Emilio Loera, Erwin Cazares |
| On-Site Speaker (Planned) |
Brian E. Schuster |
| Abstract Scope |
We present applications of a novel femtosecond laser micromachining workstation for fabrication of site-specific small scale mechanical testing. The 1030 nm laser operates at energies ranging from roughly 20 to 200 μJ/pulse, repetition rates up to 550 Hz, and pulse duration of ~600 fs. The laser is coupled with a steering mirror, a 6 degree of freedom hexapod stage allowing for macroscopic travel at nanometer scale resolution, and a machine vision camera microstructural scale and mapping. We will present examples of the application of this system for batch micromachining of metallic, ceramic and/or composite specimens at specific material interfaces including twins, grain boundaries and fiber/matrix interfaces. We will include investigations of the deformation and failure response of materials using digital image correlation and a thermomechanical test stage capable of quasistatic testing of small scale specimens under compression, tension, and bending over a range from -50 to nearly 500 °C. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Thin Films and Interfaces, Other |