21 citations · 44 across the 9 of their papers we have counts for
9 papers
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…
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…
Data-Driven Calibration of Multi-Fidelity Multiscale Fracture Models via Latent Map Gaussian Process
Shiguang Deng, Carlos Mora, Diran Apelian +1
Fracture modeling of metallic alloys with microscopic pores relies on multiscale damage simulations which typically ignore the manufacturing-induced spatial variabilities in porosi…
Adaptive Spatiotemporal Dimension Reduction in Concurrent Multiscale Damage Analysis
Shiguang Deng, Diran Apelian, Ramin Bostanabad
Concurrent multiscale damage models are often used to quantify the impacts of manufacturing-induced micro porosity on the damage response of macroscopic metallic components. Howeve…
Estimation of elastic behaviors of metal components containing process induced porosity
Shiguang Deng, Carl Soderhjelm, Diran Apelian +1
Significant progress has been made for assessing the influence of porosity on the performance metrics for cast components through various modeling techniques. However, a computatio…
Reduced-Order Multiscale Modeling of Plastic Deformations in 3D Alloys with Spatially Varying Porosity by Deflated Clustering Analysis
Shiguang Deng, Carl Soderhjelm, Diran Apelian +1
Aluminum alloys are increasingly utilized as lightweight materials in the automobile industry due to their superior capability in withstanding high mechanical loads. A significant…
Second-Order Defeaturing Estimator of Manufacturing-Induced Porosity on Structural Elasticity
Shiguang Deng, Carl Soderhjelm, Diran Apelian +1
Manufactured metallic components often contain non-uniformly distributed pores of complex morphologies. Since such porosity defects have significant influence on material behaviors…
Emergence of near-boundary segregation zones in face-centered cubic multi-principal element alloys
Megan J. McCarthy, Hui Zheng, Diran Apelian +6
Grain boundaries have been shown to dramatically influence the behavior of relatively simple materials such as monatomic metals and binary alloys. The increased chemical complexity…