| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
|
| Presentation Title |
Slip Localization in an Additively Manufactured 316L Stainless Steel |
| Author(s) |
Christopher Bean, Fulin Wang, Marie Charpagne, Patrick Villechaise, Valery Valle, Sean Agnew, Dan Gianola, Tresa Pollock, Jean-Charles Stinville |
| On-Site Speaker (Planned) |
Christopher Bean |
| Abstract Scope |
The changes in the mechanical properties of additively manufactured (AM) 316L stainless steel is associated with the micro-scale cellular structures and complex grain and sub-grain structures that arise from heating and cooling during the additive manufacturing process. The sub-grain scale effects caused by these unique microstructural structures on plastic localization were investigated using high-resolution digital image correlation and multi-scale microstructure measurements. Significant heterogeneous slip localization was observed in the AM 316L stainless steel and related to the heterogeneity at the different microstructural scales. In addition, incipient plasticity in the AM material was observed to be mainly controlled by the cellular structures and the density of low-angle grain boundaries, significantly different from incipient plasticity in the wrought 316L stainless steel. In addition, relationships between strain localization and macroscopic mechanical properties are highlighted for the AM material. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Additive Manufacturing, Mechanical Properties |