Areas of Research:
- CFD Multisclae Modeling in Materials Processing
- Modeling of Microstructure Evolution in Addtitive Manufactuing Processes
- Research and Development of High Performance Alloys
- Solidification Science and Engineering of Castings
- Ultrasonic Processing of Alloys and Nanocomposites
At Caterpillar, he conducted research in the area of macro transport and solidification-kinetics modeling and developed specialized casting simulation software.
Dr. Nastac’s research interests include:
- Solidification Science (solidification-kinetics, convection effects on solidification processes (nucleation and growth kinetics, interface stability), microstructure evolution modeling of primary and secondary phases in various alloy systems)
- Apply novel experimental techniques including levitation, atomization, electromagnetic stirring, ultrasonic (cavitation, shock force and acoustic streaming technologies), micro-chilling technology, mechanical shearing, etc., for understanding and control of various microscopic and macroscopic phenomena that take place during the solidification of alloys and metal-matrix-composites including microstructure evolution, interface instability of alloys, dendritic growth, segregation, cracking, hot tearing, shrinkage and porosities, mold/metal interface interactions in casting alloys, morphological transitions, etc.
