| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Response of Materials Investigated Through Novel In-Situ Experiments and Modeling
|
| Presentation Title |
In Situ Nanomechanical Testing at Cryogenic Temperatures |
| Author(s) |
Kevin Schmalbach, Eric Hintsala, Douglas Stauffer, Sanjit Bhowmick |
| On-Site Speaker (Planned) |
Kevin Schmalbach |
| Abstract Scope |
Structural materials experience stresses at temperatures between room and cryogenic temperatures in a variety of industries, ranging from aerospace to civil engineering applications. The change in mechanical behavior of such materials can be drastic, especially in cases where phase transformations or ductile-to-brittle transitions occur. In situ SEM nanomechanical testing allows the user to directly observe material response and correlate the visualization with mechanical data, all while probing individual regions of the microstructure. A cryogenic control module has been developed for the Hysitron PI89 SEM Picoindenter, enabling temperature control from cryogenic to room temperature. The system has independent temperature control of the probe and the sample to enable proper temperature matching in vacuum, similar to elevated temperature testing. Here, we examine the temperature-dependent mechanical behavior of two metallic systems, Nitronic 50 and tungsten. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Iron and Steel, Characterization |