About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing Fatigue and Fracture: Effects of Surface Roughness, Residual Stress, and Environment
|
Presentation Title |
The Influence of Powder Reuse on the Mechanical Properties of Laser Powder Bed Fused Stainless Steel 316L |
Author(s) |
Rory Douglas, Robert Lancaster, Thomas Jones |
On-Site Speaker (Planned) |
Rory Douglas |
Abstract Scope |
The use of additive manufacturing (AM) for the fabrication of production parts is expanding. This has been driven by the improvements and optimisation of AM, as well as the unique design or re-design potential that AM can facilitate. Laser powder bed fusion (L-PBF) is an AM technique that can be used to create close to fully dense metal parts in near net geometries. To maintain financial competitiveness with alternative manufacturing techniques, it is common to reuse the powder feedstock in L-PBF across multiple builds. Through powder reuse, it is possible for the properties of the powder feedstock to shift. If this shift is great enough, it may have a knock-on effect upon part properties and performance. In this research, the evolution of L-PBF stainless steel 316L powder after different levels of recycling has been investigated, with a particular emphasis on how powder evolution influences the component’s final cyclic properties. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Mechanical Properties, Characterization |