| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
2023 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-18: Characterization of Microstructural Heterogeneities in Electron Beam Additively Manufactured Haynes 282 |
| Author(s) |
Alivia Mourot |
| On-Site Speaker (Planned) |
Alivia Mourot |
| Abstract Scope |
Additive manufacturing (AM) is being used to fabricate near net shapes of complex geometries with reduced material waste and post-processing. AM process conditions lead to formation of metastable phases with columnar grains resulting in anisotropic mechanical properties. Recently, significant efforts are being directed towards identifying AM processing and post-processing routes to fabricate builds with equiaxed microstructures, even in complex build geometries. Therefore, further research is needed to understand process-structure-property relationships of AM builds. Haynes 282, a precipitation-strengthened Ni-based superalloy, has applications in industrial gas turbine engines due to excellent high temperature creep resistance. In this study, microstructural characterization of a unique pyramidal geometry fabricated by electron beam melting (EBM) was conducted to quantify the size and morphology of the gamma grains, gamma prime precipitates and carbides. SEM and EBSD data were correlated with Vickers hardness maps obtained from different locations of the sample to determine process-structure-property linkages for this geometry. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Characterization, Copper / Nickel / Cobalt |