THE ROLE OF MIXING FACTOR IN DYNAMIC THERMAL METHODS
Keywords:
DTM, direct thermal method, globular structure, non-dendritic structure, melt mixingAbstract
The role of the melt transfer factor relative to the cooling surface in the direct thermal method (DTM) is investigated. It is shown that the necessary condition for the formation of a non-dendritic structure is the propagation of nuclei formed near the cooling surfaces (walls and bottom of the chill mold) along the entire volume of the billet, which is achieved by the mixing action of the melt jet during pouring.
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