Publications (5)
Chemical order transitions within extended interfacial segregation zones in NbMoTaW
Doruk Aksoy, Megan J. McCarthy, Ian Geiger +6
Interfacial segregation and chemical short-range ordering influence the behavior of grain boundaries in complex concentrated alloys. In this study, we use atomistic modeling of a N…
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…
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…
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…
Influence of chemistry and structure on interfacial segregation in NbMoTaW with high-throughput atomistic simulations
Ian Geiger, Jian Luo, Enrique J. Lavernia +3
Refractory multi-principal element alloys exhibiting promising mechanical properties such as excellent strength retention at elevated temperatures have been attracting increasing a…