| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
|
| Presentation Title |
Effect of Fe Alloying on Phase Evolution, Microstructure, Mechanical and Tribological Properties of Ti64 Alloy via Laser-Material-Deposition |
| Author(s) |
Ipsita Mohanty, Saurav Misra, Sujoy Kumar Kar, Partha Saha |
| On-Site Speaker (Planned) |
Ipsita Mohanty |
| Abstract Scope |
Being an effective eutectoid β-phase stabilizer, Fe alloying for Ti mitigates anisotropy (due to the growth of prior columnar β-grains) in the AM build parts, along with superior solid solution strengthening. This study investigates the effect of Fe alloying on the base Ti64 alloy using a laser-material-deposition method, at varying Fe concentration up to 10%. CALPHAD-based non-equilibrium phase simulations were conducted to predict the solidification route and phases, which were studied in correlation to the XRD-phase analysis showing the evolution of β-Ti and TiFe phases with increasing Fe-alloy concentration. Corresponding SEM-microstructural features were studied and the resulting hardness values were evaluated, showing strengthening with an increase in Fe concentration. The reciprocating wear characteristics reveal the effect of Fe alloying in effectively addressing the poor tribological behavior of Ti64. Such studies would help extend industrial applications of the laser-AM processed Ti-alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, Characterization |