|About this Abstract
||3rd World Congress on High Entropy Alloys (HEA 2023)
||Radiation Damage Resistance Dependent on Compositional Complexity in Molybdenum-Based Alloys
||Emily M. Hopkins, Annie Barnett, Khalid Hattar, Mitra Taheri
|On-Site Speaker (Planned)
||Emily M. Hopkins
Body-centered cubic refractory high-entropy alloys (RHEAs) are proposed for the next generation of materials suitable for fusion reactor components due to their outstanding high-temperature strength, and radiation tolerant properties. This study investigates compositionally gradient Mo-based alloys and explores radiation resistance dependent on chemical complexity using transmission electron microscopy techniques. Structural observations collected via in situ transmission electron microscopy (TEM) and precession electron diffraction automated crystallographic orientation mapping (PED-ACOM) reveal indicators of increasing radiation tolerance in alloys with increased complexity under high temperature conditions. By providing fundamental analysis of the impact of additional components on damage resistance, we approach a mechanistic understanding of grain boundary and matrix effects on defect accommodation in RHEAs.
||Planned: Metallurgical and Materials Transactions