About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Seeing is Believing -- Understanding Environmental Degradation and Mechanical Response Using Advanced Characterization Techniques: An SMD Symposium in Honor of Ian M. Robertson
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Presentation Title |
In-situ Materials Micromechanics at Extreme Rates above 10<sup>6</sup> s<sup>-1</sup> |
Author(s) |
Christopher A. Schuh |
On-Site Speaker (Planned) |
Christopher A. Schuh |
Abstract Scope |
Whereas many in-situ mechanics methodologies are aimed at fine spatial resolution, this talk will review a technique focused on extreme time resolution. With the LIPIT platform (laser induced particle impact test) and a nanosecond camera, we are able to measure velocities of supersonic particles as they strike and rebound from substrates. This provides both quantitative information about energy dissipation during the impact and direct observations of some dissipation mechanisms. When combined with post mortem microscopy, this method reveals new details about mechanisms of deformation and microstructure evolution. And when combined with temperature control and/or low-melting point materials, it offers new opportunities to understand adiabatic temperature rise during deformation at high rates. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Additive Manufacturing, Environmental Effects |