| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Beyond the Beam II
|
| Presentation Title |
Texture Development and Influence in Solid-state Additive Manufacturing |
| Author(s) |
Robert J. Griffiths, Mackenzie Perry, David Garcia, Hang Yu |
| On-Site Speaker (Planned) |
Robert J. Griffiths |
| Abstract Scope |
Among the difficulties in using beam-based additive manufacturing (AM) processes, is the tendency for materials to form columnar grain structures during repeated melting and solidification, resulting in strong textures and anisotropy. While numerous advances have been made in material composition and beam rastering strategies, solid-state AM avoids this columnar growth with no special precautions. Although epitaxial growth is largely avoided, texture and the resulting anisotropy must still be considered for solid-state AM techniques. Here we discuss texture evolution and control in the solid-state process, Additive Friction Stir Deposition (AFSD). The asymmetric deformation during material deposition with AFSD is generally found to produce shear textures, of which the orientation, magnitude, and influence on properties changes with material and process parameters. The wide process window in which AFSD operates is found to enable a degree of control over such features, and their implications are discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, |