| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Microstructural and Mechanical Long-term Stability of AM Materials
|
| Presentation Title |
Hot Deformation Behavior of Additively Manufactured Ti-6Al-4V |
| Author(s) |
Hanna Czarise Regidor, Jubert Pasco, Kudakwashe Nyamuchiwa, Candy Mercado, Clodualdo Aranas |
| On-Site Speaker (Planned) |
Hanna Czarise Regidor |
| Abstract Scope |
Research on additive manufacturing (AM) of alloys such as Ti-6Al-4V has increased recently, particularly for aerospace and biomedical applications. Despite the near-net shape advantages of this process, post-processing techniques, such as hot isostatic pressing, are often required to mitigate defects caused by high-temperature gradients associated with AM process. In this study, the hot deformation response of laser powder bed fusion (LPBF)-fabricated Ti-6Al-4V was investigated using a Gleeble 563 thermomechanical system to simulate the effects of the HIP process. Quasi-static mechanical response was assessed at a strain rate of 0.01 s⁻¹, with deformation temperatures ranging from 550 °C to 800 °C. Results showed that lower deformation temperatures led to increased flow stress. These deformation conditions also influenced the microstructure, resulting in fragmentation and changes in the shape of the α-laths. Electron backscatter diffraction (EBSD) analysis revealed that the deformation temperature affected the alloy's crystallographic texture, with a strong orientation preference (i.e., with respect to building direction) observed in the α-laths. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |