About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
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| Symposium
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Mechanical Response of Materials Investigated Through Novel In-Situ Experiments and Modeling
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| Presentation Title |
Advancing High-Temperature Image Analysis and Physical Property Measurements With Ultra-Violet Imaging |
| Author(s) |
Syed Idrees Afzal Jalali, Michael Patullo, Sharon Park, Carolina Frey, Leah Mills, Kaitlyn Mullin, Colin Goodman, Mark Foster, Tresa Pollock, Kevin Hemker |
| On-Site Speaker (Planned) |
Syed Idrees Afzal Jalali |
| Abstract Scope |
A novel ultra-high temperature (UHT) tensile testing rig has been developed recently at Johns Hopkins University to enable testing up to 2000 °C. This work discusses advancements in the integration of UV imaging for digital image correlation (DIC) at UHT and its application in melting point measurements. DIC enables precise measurement of mechanical properties at UHT. Monitoring thermal strain during heat ramps further allows the characterization of the coefficient of thermal expansion. Additionally, the same experimental platform is used to determine solidus and liquidus points of various alloys by analyzing shape changes captured in UV images. The incorporation of a multispectral pyrometer enables simultaneous measurement of emissivity during melting tests. As proof of concept, tensile and physical properties of refractory alloys have been evaluated under high vacuum conditions. These demonstrations underscore the capability of rapidly acquiring a wealth of UHT data to inform advanced materials research and development. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Mechanical Properties, Other |