A multiphase field model is developed to study the effects of metastable ζ and γ hydrides on the nucleation and growth of the stable δ hydrides in α zirconium matrix. Acta Materialia 123 (2017) 235-244
Call for abstracts for the symposium on Martensitic Transformations in Non-Metallic Materials in the International Conference on Martensitic Transformations (ICOMAT) 2017.
Molecular dynamics (MD) is employed to investigate the plastic deformation mechanisms of single crystalline yttria-stabilized tetragonal zirconia (YSTZ) nanopillars under uniaxial compression. Simulation results show that the nanoscale plastic deformation of YSTZ is strongly dependent on the crystallographic orientation of zirconia nanopillars. For the first time, the experimental explored tetragonal to monoclinic phase transformation is reproduced by MD simulations in some particular loading directions.
Two PhD positions are available immediately in Computational Mechanics & Materials.
One project (NSF grant) is about multi-phase field modeling of formation and evolution of intermetallics and oxides at high temperatures in advanced high strength steels. Another project (NSF grant) is about multi-phase field modeling of evolution of oxide bifilms in solidification of metals.
This work aims to comprehensively study the anisotropy of the hexagonal close-packed (HCP)-liquid interface free energy using molecular dynamics (MD) simulations based on the modified-embedded atom method (MEAM). As a case study, all the simulations are performed for Magnesium (Mg). The solid-liquid coexisting approach is used to accurately calculate the melting point and melting properties. Then, the capillary fluctuation method (CFM) is used to determine the HCP-liquid interface free energy and anisotropy parameters.
A postdoctoral research associate position is available immediately in the Computational Materials & Mechanics Laboratory at Missouri University of Science and Technology (Rolla), http://web.mst.edu/~aslezaeemm/
Candidates need to have a strong background in Phase Field Modeling (PFM).
Two PhD positions are available immediately in the Computational Materials & Mechanics Laboratory at Missouri University of Science and Technology (Rolla), http://web.mst.edu/~aslezaeemm/.
The project is about multi-phase field modeling of formation and evolution of intermetallics and oxides at high temperatures.
A postdoctoral research associate position is available immediately in the Computational Materials & Mechanics Laboratory at Missouri University of Science and Technology (Rolla), http://web.mst.edu/~aslezaeemm/
Candidates need to have a strong background in Molecular Dynamics (MD) or Phase Field Modeling (PFM).
Two PhD positions are available immediately in the Computational Materials & Mechanics Laboratory at Missouri University of Science and Technology (Rolla), http://web.mst.edu/~aslezaeemm/:
1. Multi-phase field modeling: defect formation and evolution during dendritic solidification of aluminum alloys
2. Molecular dynamics simulations of properties of oxides
Advancements in additive manufacturing technology have created the ability to design and construct parts with geometries and properties that cannot be achieved through traditional machining processes. This ability has promoted new design strategies whose success relies on close integration of engineering with materials science. Of particular interest is tailoring specific material properties in low-volume production.
