| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Solid Phase Processing Symposium
|
| Presentation Title |
Fatigue Mechanisms of Aluminum Alloys Fabricated by Additive Friction Stir Deposition |
| Author(s) |
Ben Ruthford, Dustin Avery, Luke Brewer, Paul Allison, J. Brian Jordon |
| On-Site Speaker (Planned) |
J. Brian Jordon |
| Abstract Scope |
Additive manufacturing is generally associated with powder-based beam melting or sintering methods. However, recent innovations in solid phase additive methods such as additive friction stir deposition (AFS-D) provide unique capabilities to additively repair or manufacture new components. The AFS-D process is a novel method that exploits high-shear and severe plastic deformation to produce fully-dense, near net-shape structures with wrought-like properties. While the feasibility of the AFS-D process has been demonstrated on various materials, the fatigue mechanisms of this new manufacturing process remains largely unknown. As such, in this talk, we present an in-depth investigation of the fatigue mechanisms of 6xxx and 7xxx aluminum alloys fabricated from the AFS-D process. In particular, fatigue crack nucleation and crack propagation mechanisms associated with the longitudinal and build directions of the AFS-D process are discussed. In addition, the effect of heat treatment on fatigue behavior is also presented. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |