| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
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Local Chemical Ordering and Its Impact on Mechanical Behaviors, Radiation Damage, and Corrosion
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| Presentation Title |
The interplay between short-range order and radiation damage in multi-principal element alloys |
| Author(s) |
Miaomiao Jin, Hyeonwoo Kim, Hamdy Arkoub, Sangtae Kim, Yang Yang |
| On-Site Speaker (Planned) |
Miaomiao Jin |
| Abstract Scope |
Chemical short-range order (CSRO) significantly impacts dislocation and defect dynamics in multi-principal element alloys (MPEAs). This nanoscale atom arrangement, due to enthalpic interactions, is also crucial in modulating radiation performance. In this talk, we will discuss how the interplay between CSRO and the features of radiation-induced defects. A high CSRO level generally reduces the effective defect diffusivity due to trapping effects, leading to distinct defect dynamics. The stability of CSRO, influenced by radiation, varies significantly by material and can reach a steady state regardless of initial conditions under continuous irradiation. Additionally, in nanocrystalline materials, defect sinks like grain boundaries exhibit distinct CSRO properties due to structural characteristics and interactions with defects. CSRO influences the efficiency of these sinks in absorbing defects, affecting irradiation resistance. These findings underscore the importance of considering CSRO in studying radiation-driven microstructural evolution. |
| Proceedings Inclusion? |
Planned: |