| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2023
|
| Presentation Title |
Stress Relaxation Behavior of Molybdenum Sheet |
| Author(s) |
Alex Xie, Gary A. Rozak, Oliver M. Horst |
| On-Site Speaker (Planned) |
Gary A. Rozak |
| Abstract Scope |
Elevated temperature applications of pure Molybdenum (Mo) (BCC) sheet are limited by deformation that arise in long-term loading with high temperature cycles, for example, furnace applications. In this study, the stress relaxation mechanical deformation is characterized in pure Mo sheets for both powder metallurgy (PM) and arc casting consolidation followed by thermo-mechanical processing. A technique is developed for measuring deformation behavior via a “hot-grip” high temperature tensile test system at room up to 1350°C and stress levels up to 80% of the 0.2% off-set yield strengths at test temperature. The engineering strain rates are calculated and compared between the material types and testing conditions. Microstructures and surface conditions after testing are observed for guiding and understanding mechanism and directing future evaluation. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Temperature Materials, Characterization, Mechanical Properties |