About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials IX
|
Presentation Title |
In-situ SEM High Strain Rate Testing of Mg Micropillars with TEM Postmortem Analysis |
Author(s) |
Zhaowen Lin, Daniel Magagnosc, Jianguo Wen, Chung-Seog Oh, Sang-Min Kim, Horacio Espinosa |
On-Site Speaker (Planned) |
Zhaowen Lin |
Abstract Scope |
High strain rate mechanical characterization of materials, performed on micrometer scale, is attracting increasing interests as it provides a unique opportunity to understand rate effects on mechanical behavior of metals from nano to meso scales. Such experiments not only provide mechanistic understanding but also a means to close the gap between discrete dislocation dynamics and coarse grain atomistic modeling, which is done at high strain rates. Very few reports exist addressing the experimental challenges associated with the design of experiments that can simultaneously examine the effects of length and time scales. In this work, a suite of protocols ranging from sample microfabrication to instrumentation for testing and data analysis are presented. Moreover, the mechanical behavior and emergent defect organization, in micrometer scale single crystal magnesium subjected to high strain rate compression along the c-axis, are reported. |
Proceedings Inclusion? |
Planned: |
Keywords |
Magnesium, Mechanical Properties, Nanotechnology |