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A Simple Mathematical Model for Establishing Isothermal Transformation Kinetics from Continuous Cooling Data

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Abstract

A simple mathematical model for establishing isothermal transformation kinetics from continuous cooling transformation data is presented. A new regression function of k, which is a reaction parameter of the Johnson–Mehl–Avrami equation, is proposed. The isothermal transformation kinetics of austenite-pearlite transformation in a eutectoid steel is converted from continuous cooling transformation data using the regression function in combination with the inverse additivity rule. The converted isothermal transformation kinetics excellently agrees with experimental results irrespective of temperature.

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The study has been supported by the Korea Institute of Science and Technology (KIST) Flagship Program (Project No. 2E30201).

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Correspondence to Jae-Hyeok Shim.

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Manuscript submitted March 03, 2020.

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Kim, J.M., Kang, M., Goo, N.H. et al. A Simple Mathematical Model for Establishing Isothermal Transformation Kinetics from Continuous Cooling Data. Metall Mater Trans A 51, 4422–4426 (2020). https://doi.org/10.1007/s11661-020-05910-1

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  • DOI: https://doi.org/10.1007/s11661-020-05910-1

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