| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Additive Manufacturing: Mechanical Behavior of Lattice Structures Produced via AM
|
| Presentation Title |
Tailoring Hierarchical Material Performance Through Process Manipulation |
| Author(s) |
Bradley Howell Jared, Brad Boyce, Anthony Garland, Michael Heiden, Scott Jensen, David Moore, David Saiz, Benjamin White, Timothy Ruggles |
| On-Site Speaker (Planned) |
Bradley Howell Jared |
| Abstract Scope |
Hierarchical materials introduce a compelling design space to achieve material and structural performance regimes that are inaccessible in bulk, homogenous materials. Numerous researchers have explored an array of geometrical constructs for tuning hierarchical material properties. The presented work, however, will explore how process inputs from laser-powder bed fusion impact the mechanical performance of 316L stainless steel octet and gyroid lattice structures. The process space within which robust lattice geometries can be fabricated will be described. Relationships between process inputs and resultant strut geometry, cell geometry and structure performance will also be presented based on fringe-project microscopy, computed tomography, metallography and quasi-static compression loading. It will be demonstrated that process inputs provide an additional degree of freedom in the design and fabrication of hierarchical materials. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525. |