| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Neutron and X-ray Scattering in Materials Science and Engineering
|
| Presentation Title |
Measurement of Residual Stress in Additively Manufactured Ti-6Al-4V & Ti-6Al-2Sn-4Zr-6Mo Walls Using Neutron Diffraction |
| Author(s) |
Rajib Halder, Samuel Lim, Louis Chiu, Aijun Huang, Ke An, Anthony D Rollett |
| On-Site Speaker (Planned) |
Rajib Halder |
| Abstract Scope |
Ti-6Al-2Sn-4Zr-6Mo (Ti6246) alloy offers a promising alternative to Ti-6Al-4V (Ti64) in aerospace applications due to its high temperature performance, critical for engine compressor sections operating at temperatures ranging from 450 ℃ to 550 ℃. The aerospace industry increasingly employs laser powder bed fusion (LPBF) for manufacturing these high-value components. However, inherent residual stress during LPBF presents challenges, potentially causing component deformation or failure. In this study, neutron diffraction techniques were used to investigate the mechanism of residual stress formation in LPBF-manufactured Ti6246 and Ti64 thin walls, mapping strain along all three principal directions. The results revealed that the residual stress state correlates with the phase compositions of these α+β titanium alloys, offering insights into controlling residual stress by adjusting alloy phase compositions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Characterization |