| About this Abstract |
| Meeting |
Materials Science & Technology 2019
|
| Symposium
|
Powder Metallurgy of Light, Reactive and Other Non-ferrous Metals
|
| Presentation Title |
Thermodynamic Model for Predicting the Embodied Energy of Titanium Alloys Produced by Powder Metallurgy |
| Author(s) |
James D. Paramore, Brady G. Butler, Matthew K. Dunstan, Z. Zak Fang |
| On-Site Speaker (Planned) |
James D. Paramore |
| Abstract Scope |
A thermodynamic model will be presented for predicting the embodied energy and carbon footprint of a powder metallurgy (PM) process. The mass/energy balance and parasitic energy losses were modeled for the entire process from powder preparation to compaction and sintering. Hydrogen Sintering and Phase Transformation (HSPT) was chosen for this evaluation, though the model is adaptable to any PM process. HSPT was designed as an energy-efficient and low-cost process for producing fully dense Ti-6Al-4V with a range of wrought-like microstructures and mechanical properties. This process uses a dynamically controlled hydrogen partial pressure during sintering, which both aids densification and allows for microstructural engineering through hydrogen-enabled phase transformations. This, in turn, can produce strength over 1 GPa with 22 %EL ductility and fatigue endurance limits of 60% UTS (~600 MPa). In the current work, the energy efficiency and cost-effectiveness of this process on a commercial scale was evaluated. |