About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques III
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Presentation Title |
In-situ Study on Fracture Behavior of Friction Stir Deposited AA 6061 |
Author(s) |
Rajashekara Sarvesha, Tyler Dolmetsch, Richard Eberheim , Aaron Birt, Victor K Champagne, Arvind Agarwal |
On-Site Speaker (Planned) |
Rajashekara Sarvesha |
Abstract Scope |
Friction stir deposition (FSD) is a solid-state additive manufacturing technique that enables layer-by-layer material deposition without reaching the melting point. This process involves the rotation of feedstock, which generates heat and facilitates material flow. In order to minimize friction between the feedstock rod and the tool, a lubricating coating is typically employed during deposition. The present work investigates the influence of lubrication on the anisotropic deformation characteristics of the FSD sample. The deformation and fracture behavior were studied through customized laboratory-based in-situ micro-tensile testing, employing various microscopy techniques at different length scales. The investigation revealed a detrimental effect of lubrication on the mechanical properties of FSD components. Consequently, process modifications were implemented through liquid nitrogen cooling to achieve better properties, and these findings have profound implications in the field of friction stir additive manufacturing. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Aluminum, Other |