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Published on: July 11, 2017
Modified smoothed particle hydrodynamics (MSPH) for the analysis of centrifugally assisted TiC-Fe-Al2O3 combustion
M A Hassan1, Reza Mahmoodian2, M Hamdi3
11] Centre of Advanced Manufacturing and Materials Processing (AMMP), Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia [2] Department of Mechanical Engineering, Assiut University, Assiut 71516, Egypt.
Abstract:
A modified smoothed particle hydrodynamic (MSPH) computational technique was utilized to simulate molten particle motion and infiltration speed on multi-scale analysis levels. The radial velocity and velocity gradient of molten alumina, iron infiltration in the TiC product and solidification rate, were predicted during centrifugal self-propagating high-temperature synthesis (SHS) simulation, which assisted the coating process by MSPH. The effects of particle size and temperature on infiltration and solidification of iron and alumina were mainly investigated. The obtained results were validated with experimental microstructure evidence. The simulation model successfully describes the magnitude of iron and alumina diffusion in a centrifugal thermite SHS and Ti + C hybrid reaction under centrifugal acceleration.
