Abstract
The static spheroidization of a silicon-containing steel was studied employing quantitative metallography and hardness measurements. Specimens with interlamellar spacings of 0.57 and 0.26μm were annealed at temperatures of 600, 650 and 700° C to obtain the spheroidization of Fe3C. The results of quantitative metallography and hardness measurements indicate that the rate of spheroidization is controlled by the diffusion of iron at the Fe-Fe3C interface. The increase in the rate of spheroidization due to a reduction in the interlamellar spacing is thought to be caused by an increase in the defect density in the Fe3C plates when pearlite has a smaller interlamellar spacing.
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Atasoy, Ö.E., Özbilen, S. Pearlite spheroidization. J Mater Sci 24, 281–287 (1989). https://doi.org/10.1007/BF00660968
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DOI: https://doi.org/10.1007/BF00660968