About this Abstract |
Meeting |
2021 AWS Professional Program
|
Symposium
|
2021 AWS Professional Program
|
Presentation Title |
Texture Evolution during Homogenization on Additively Manufactured IN718 Alloys Produced with Powder Bed Fusion Process |
Author(s) |
Selda Nayir, Bertrand Max, Simon Perusin, Todd A. Palmer |
On-Site Speaker (Planned) |
Selda Nayir |
Abstract Scope |
The material properties of additively manufactured parts can differ depending on the examined build direction due to the inherited orientational dependency during the building process. In this study, the impact of anisotropy on IN718 samples produced with powder bed fusion process and homogenized between 1050˚C-1200˚C was investigated. Characterization results of the fabricated parts showed a significant variation depending on the examined build directions of transverse and longitudinal. According to that, texture along build direction was shifted from [001] to [011] direction while the texture in longitudinal direction usually remained stationary along [011] direction with applied temperature. Grains also showed significant morphological differences depending on the examined surface on the builds where grains in transverse direction have a higher aspect ratio and in elongated shape than the grains in the longitudinal direction. However, the morphological differences between the differently oriented parts were diminished and grains in both directions become more equiaxed with increased temperature. |
Proceedings Inclusion? |
Definite: Other |