Microsegregation in directionally solidified dendritic-cellular structure of superalloy CMSX-4

A directionally solidified sample of superalloy CMSX-4 was investigated to show the effect of crystal orientation on the segregation distribution. The solute distribution of alloying elements across a dendritic cell was measured. Due to the preferred crystal growth in orientation the segregation profiles in this direction is much flatter than that in orientation.

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