| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
A-148: Tailoring Hierarchical Material Performance Through Process Manipulation |
| Author(s) |
Bradley Howell Jared, David Saiz, Michael Heiden, Matthew Roach, Anthony Garland, Brad Boyce, Ben White, David Moore |
| On-Site Speaker (Planned) |
Michael Heiden |
| 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. Thus, 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. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |