About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Functional, Energy, and Magnetic Materials
|
Presentation Title |
Engineered Interconnected Porosity for Enhanced Functional Devices |
Author(s) |
Scott N. Roberts, Ben Furst, Eric Sunada |
On-Site Speaker (Planned) |
Scott N. Roberts |
Abstract Scope |
In general, porosity is seen as a failure in additive manufacturing processes. However, in some instances, controlled porosity can be used as a positive. Through careful control of various machine parameters in a powder bed fusion machine, we have been able to crate tunable interconnected open porosity structures in SS316L, Ti-6-4, AlSi10Mg, and Inconel 625. Pore sizes can range from sub-micron to 250 μm. Porosities span 0 to 60%. Additionally, structures with multiple porosities (or fully solid) regions can be created, enabling greater design freedom than previously available. By combining our porous settings with previously demonstrated scan strategies we can create pores of arbitrary geometry. Characterization of the properties of our porous structures (e.g., electrical conductivity, tensile/compressive strength, elastic moduli) will also be discussed. We have also demonstrated our ability to integrate local porosity control as a method for fabricating devices such as integrated heat pipes, filters, and more. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Mechanical Properties, Other |