| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Grain Boundaries, Interfaces, and Surfaces: Fundamental Structure-Property-Performance Relationships
|
| Presentation Title |
An Atomistic Study of the Radiation Response of Grain Boundaries in High Entropy Alloys |
| Author(s) |
Sarah Paguaga, Ian Chesser, Enrique Martinez Saez, Saryu Fensin |
| On-Site Speaker (Planned) |
Sarah Paguaga |
| Abstract Scope |
As advancements are made in nuclear systems, fusion reactors, space exploration, etc., there is a prevalent need for a radiation resistant material that can withstand mechanical extremes. High Entropy Alloys (HEA) are a strong contender for this role as they contain great material properties. However, the mechanisms of radiation damage tolerance of Grain Boundaries (GB) in HEAs are not well understood. To address this, we simulate high dose radiation damage around a GB in a FeNiCrCoAl system through the Creation Relaxation Algorithm (CRA). The GB sink efficiency is analyzed by observing the average total energy and the GB development to discover if the structure reaches an asymptotic structure. It was found the GB sink efficiency leads to quantifiable steady state disordered GB structures with induced elemental segregation. This analysis can provide insight into how GB's can influence HEA composition and microstructure evolution with radiation damage. |