About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2026 – A Memorial to Todd Leonhardt
|
| Presentation Title |
Resonant Ultrasound Spectroscopy as a High-Precision Tool for Elastic Modulus Measurement in Molybdenum-Rhenium Alloys |
| Author(s) |
Mathew L. Hayne, Nathan Hill, Zachary Levin |
| On-Site Speaker (Planned) |
Mathew L. Hayne |
| Abstract Scope |
Understanding how alloying influences elastic properties is essential for the design of refractory metal systems. In this study, resonant ultrasound spectroscopy (RUS) was employed to quantify the effect of rhenium content on the elastic modulus of single-phase molybdenum–rhenium (Mo–Re) alloys over a compositional range of 0–35 wt% Re. RUS measurements revealed a systematic and highly sensitive correlation between Re concentration and the longitudinal and shear moduli, providing greater resolution than conventional techniques. These findings were benchmarked against elastic modulus values obtained from nanoindentation, uniaxial mechanical testing, and microstructural characterization through metallography. While all methods captured the general trend of modulus evolution, RUS demonstrated superior precision in capturing subtle shifts associated with solid solution strengthening and electronic structure changes. The results highlight RUS as a powerful, non-destructive method for evaluating elastic behavior in alloy systems, offering a complementary and often more discerning perspective than traditional mechanical characterization methods. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Mechanical Properties, Characterization, |