Abstract
By means of mathematical simulation, the kinetics of solidification and the development of crystalline structure of complex powder particles of different shapes (spherical, cylindrial, planar) from a low-carbon steel 34MoCr4 is investigated. These particles are formed during the thermal interaction of liquid and solidified drops in the process of metal atomization. The optimum conditions for particle solidification are predicted from the point of view of the formation of the minimum structural defects (porosity, chemical inhomogeneity, etc.) as well as the most fine and dense crystalline structure. The results obtained are consistent with experimental data and can be used for prediction purposes.
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