About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Refractory Metals 2024
|
Presentation Title |
Recrystallization, Tensile Ductility, and Flow Stress of TZM and Mo-La Alloys at 1500 and 1700 °C |
Author(s) |
Monica R. Martinez Henriquez, Gary A. Rozak, Eric M. Taleff |
On-Site Speaker (Planned) |
Monica R. Martinez Henriquez |
Abstract Scope |
New data are presented for the mechanical properties of Titanium-Zirconium-Molybdenum (TZM) and Lanthanated Molybdenum (Mo-La) alloys at 1500 and 1700 °C. Static recrystallization behaviors, tensile ductilities, and flow stresses were measured for commercially-pure Mo, two Mo-La alloys (1.0% and 0.6% La, by weight), and two TZM alloys (one manufactured using powder metallurgy and the other using arc casting) at 1500 and 1700 °C under constant true-strain rates of 10-3, 10-4 and 3×10-5 s-1. Both La additions and Ti-Zr additions effectively suppress dynamic abnormal grain growth, which was only observed in unalloyed Mo. La additions significantly inhibit recovery and recrystallization. Tensile ductility varied significantly among the alloyed materials but was generally lower than for unalloyed Mo. The flow stresses in the Mo-1.0La alloys were the greatest. Flow stresses in the Mo-0.6La material were comparable to those in the TZM alloys at 1500 °C but superior at 1700 °C. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Temperature Materials, Mechanical Properties, |