Formation kinetics of austenite in pearlitic ductile iron

Payam Abdollahi; Alborz Amirsadeghi; Shahram Kheirandish; Shamsoddin Mirdamadi

doi:10.1007/s12613-012-0587-1

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Payam Abdollahi, Alborz Amirsadeghi, Shahram Kheirandish, and Shamsoddin Mirdamadi, Formation kinetics of austenite in pearlitic ductile iron, Int. J. Miner. Metall. Mater., 19(2012), No. 6, pp.506-510. https://dx.doi.org/10.1007/s12613-012-0587-1

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Formation kinetics of austenite in pearlitic ductile iron

摘要: This work evaluated the isothermal transformation of austenite in unalloyed pearlitic ductile iron and drew the isothermal phase diagram of austenitization in the ductile iron. Austenite forms at grain boundaries and then grows up to graphite regions during austenitization. The formation kinetics of austenite complies with the Avrami equation, in which the parameter (n) ranges from 4.71 to 4.99. The start time and finish time of transformation can be calculated at each temperature using the Avrami equation.

Formation kinetics of austenite in pearlitic ductile iron

Abstract: This work evaluated the isothermal transformation of austenite in unalloyed pearlitic ductile iron and drew the isothermal phase diagram of austenitization in the ductile iron. Austenite forms at grain boundaries and then grows up to graphite regions during austenitization. The formation kinetics of austenite complies with the Avrami equation, in which the parameter (n) ranges from 4.71 to 4.99. The start time and finish time of transformation can be calculated at each temperature using the Avrami equation.

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