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The properties of steels can be improved by adding appropriate amount of alloying elements.However,the quality and properties of steels may be affected due to the segregation of the alloying elements.Rapid solidification was regarded to be an effective method to reduce or eliminate the segregation of alloying elements.While in this paper,the segregation of C and P was also observed in rapid solidified carbon steel droplets (in silicon oil) by drop tube processing.The distributions of alloying elements in 0.2m drop tube samples were similar to those in 50m drop tube samples.While in both 0.2m and 50m drop tube,the segregation of C and P was quite different when the contents of the samples were varied,the segregation profiles were discussed in detail.The microstructures of 50m droplet samples were a little finer than those of 0.2m droplet samples.The solidification speed was approximately the same from the surface to the center of each sample.In high-C samples,the microstructure was also corresponding to the distribution of C.
The properties of steels can be improved by adding appropriate amounts of alloying elements. However, the quality and properties of steels may be affected due to the segregation of the alloying elements. Rapid solidification was treated to be an effective method to reduce or eliminate the segregation of alloying elements. Temperature in this paper, the segregation of C and P was also observed in rapidly solidified carbon steel droplets (in silicon oil) by drop tube processing. The distributions of alloying elements in 0.2m drop tube samples were similar to those in 50m drop tube samples. Both in 0.2m and 50m drop tubes, the segregation of C and P was quite different from the contents of the samples were varied, the segregation profiles were discussed in detail. Microstructures of 50m droplet samples were a little finer than those of 0.2m droplet samples.The solidification speed was approximately the same from the surface to the center of each sample.In high-C samples, the microstructure was also corresponding to the distribution of C.