| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Process-induced Microstructures and Defects
|
| Presentation Title |
Characterization of Microstructure and Mechanical Property Variation in Haynes 282 as a Function of Laser Powder Bed Fusion Process Parameters |
| Author(s) |
Nicholas L. Lamprinakos, Junwon Seo, Anthony Rollett |
| On-Site Speaker (Planned) |
Nicholas L. Lamprinakos |
| Abstract Scope |
Haynes 282 (H282) is a nickel-based superalloy which performs well in high-temperature structural applications but is also readily printable with laser powder bed fusion (LPBF). By fabricating H282 with LBPF, there is a unique opportunity to control the microstructure, and thereby mechanical properties, through the many printing parameters that can be varied in the process. Furthermore, since H282 is a precipitation-strengthened alloy which generally requires post-printing heat treatment, the effect of the heat treatment used on the microstructure must also be considered. In this study, the effects of laser parameters and scan strategy on the microstructure and crystallographic texture of H282 were investigated. Experimental heat treatments were also performed to observe how the as-printed microstructure evolved with heat treatment. Hardness, tensile, and creep testing were then performed to correlate the resulting microstructures to mechanical properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Copper / Nickel / Cobalt, Mechanical Properties |