| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Solid-State Phase Transformations and Microstructural Evolution
|
| Presentation Title |
The Crystallography and Orientation of Cellular Features in Additively Manufactured 316L |
| Author(s) |
Richard W. Fonda, Joseph Aroh, Jerry Feng, David Rowenhorst |
| On-Site Speaker (Planned) |
Richard W. Fonda |
| Abstract Scope |
Laser powder bed fusion of 316L stainless steel produces a fine cellular substructure within the grains. Although these cellular structures have often been associated with enhancements in the as-built properties, their origins and characteristics are not well understood. They exhibit a variety of morphologies and orientations on polished 2D surfaces, with aspect ratios ranging from equiaxed to very elongated. In addition, the cells can exhibit multiple orientations even within the same grain. We will present a systematic characterization of the two- and three-dimensional crystallography and orientation of these cellular features, and will discuss how the observed characteristics relate to the local crystallography, local crystal growth direction, thermal gradient, and overall build direction. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Solidification |