| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
|
| Presentation Title |
Micromechanical Behavior of Multi-layered Medium-entropy Alloy and the Hydrogen Effects on It |
| Author(s) |
Zhe Gao, Yakai Zhao, Pei Wang, Hyoung Seop Kim, Upadrasta Ramamurty, Jae-il Jang |
| On-Site Speaker (Planned) |
Zhe Gao |
| Abstract Scope |
Recently, ternary equimolar medium-entropy alloy (MEA), has gathered huge attention with both fundamental and application viewpoints. Additive manufacturing enables the fabrication of multi-layered MEAs consisting of alternating soft and hard MEA layers. In this study, we explore the micromechanical behavior of multi-layered CoCrNi (a subset of the Cantor high-entropy alloy), and CoCrNi2 MEA sample prepared by laser powder bed fusion process. The local deformation of different regions in each constituent layer of the multi-layered MEA was systematically examined by using macro- and micro-scale digital image correlation techniques. Based on the results, (1) the inter-relation between local and global deformation and (2) how it can be affected by hydrogenation were investigated through a series of nanoindentation experiments on the samples before and after hydrogen charging. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, |