| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Microstructural and Mechanical Long-term Stability of AM Materials
|
| Presentation Title |
Effect of hot isostatic pressing and solution treatment on recrystallisation of Haynes 282 built with Laser Powder Bed Fusion |
| Author(s) |
Kameshwaran Swaminathan, Joel Andersson |
| On-Site Speaker (Planned) |
Kameshwaran Swaminathan |
| Abstract Scope |
Haynes 282, fabricated using laser powder bed fusion (LPBF) at 60- and 90-microns layer thickness, is the focus of this study. Haynes 282 is renowned for its applications in the turbine exhaust sections of aero engines and advanced ultra-supercritical boilers. The cell structure on the order of a few microns and the inherent anisotropy in mechanical properties are observed in LPBF-produced materials. One way to reduce the anisotropy is through recrystallization. This study will explore the hot isostatic pressing (HIP) of as-printed samples as a replacement for solution treatment and the effect of temperature and pressure on the recrystallization of the matrix compared to conventional and alternative high-temperature solution treatments. This research posits that recrystallization could significantly mitigate this anisotropy. By characterizing the differential outcomes of these HIP processes at different length scales, we aim to elucidate the extent of recrystallization and its impact on the resultant mechanical properties |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, High-Temperature Materials |