3 papers
cond-mat.mtrl-sci2025
Local chemical order suppresses grain boundary migration under irradiation in CrCoNi
Ian Geiger, Penghui Cao, Timothy J. Rupert
Complex concentrated alloys with intrinsic chemical heterogeneity are promising candidates for nuclear applications, where local chemical order can strongly influence defect evolut…
cond-mat.mtrl-sci2025
Grain boundaries amplify local chemical ordering in complex concentrated alloys
Ian Geiger, Yuan Tian, Ying Han +4
Local chemical ordering strongly influences the behavior of complex concentrated alloys, yet its characterization remains challenging due to the nanoscale dimensions and scattered…
cond-mat.mtrl-sci2023
Frustrated metastable-to-equilibrium grain boundary structural transition in NbMoTaW due to segregation and chemical complexity
Ian Geiger, Diran Apelian, Xiaoqing Pan +3
Grain boundary structural transitions can lead to significant changes in the properties and performance of materials. In multi-principal element alloys, understanding these transit…