| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
|
| Presentation Title |
Multi-scale Tensile Deformation of Wire Arc Additive Manufactured Titanium from Microscopic Beads to Macroscopic Component |
| Author(s) |
Tanaji Paul, Blanca Palacios, Denny John, Kazue Orikasa, Tyler Dolmetsch, Sohail Mohammed, Gonzalo Seisdedos, Sean Langan, Alex Michelson, Cheng Zhang, Arvind Agarwal |
| On-Site Speaker (Planned) |
Tanaji Paul |
| Abstract Scope |
Wire arc additive manufacturing (WAAM) is a promising technique for manufacturing commercially pure titanium (cp-Ti) components for marine applications such as engine and propeller blades. Absence of understanding the hierarchical mechanical response of WAAM-ed cp-Ti from single solidified beads through deposited layers to bulk component restricts process tailoring for manufacturing mechanically durable parts. This paper establishes the multi-length scale tensile behavior of WAAM-ed cp-Ti components using an integration of microscopic indentation plastometry, mesoscopic in-situ image analysis, and bulk uniaxial tensile tests. At microscopic scale, monolithic grain structures result in uniform yield strength of 330 MPa, 94% of cast cp-Ti while at mesoscopic scale interlayer phenomena such as grain rotation sustains the strain. Cumulatively, these phenomena enable the highest ductility of 29% in the additive build direction at the bulk macroscopic scale. The comprehensive understanding of the multi-scale tensile plasticity harbors potential for advancement in the large scale WAAM of cp-Ti |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Mechanical Properties |