| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Quantification of Porosity and Topology Influences on the Mechanical Behavior of Additively Manufactured Metallic Lattice Structures |
| Author(s) |
Behzad B. Babamiri, Joe Indeck, Kavan Hazeli |
| On-Site Speaker (Planned) |
Behzad B. Babamiri |
| Abstract Scope |
The focus of this research is to delineate the interplay between porosity and topology on the mechanical behavior of Additively Manufactured Lattice Structure (AMLS) made of Inconel 718 manufactured using selective laser melting technique with two different topologies: (1) stretching-dominated and (2) bending dominated. In addition, the strain rate effect on the mechanical behavior is investigated. To achieve this, quasi-static and dynamic compression testing was performed on the as-built AMLS-Inconel 718 and the results are compared with stress relieved (SR), hot isostatic pressed (HIP), and HIPed plus solution aged (SA) heat-treatment conditions. X-ray computed tomography was used to map and quantify porosity size and distribution of each heat treatment conditions. As a result, a correlation between underlying microstructure, porosity, topology, and the rate of deformation on the mechanical behavior is established. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |