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

21 Pages Posted: 19 Feb 2020

See all articles by Jeong Min Kim

Jeong Min Kim

Hanyang University - Division of Materials Science and Engineering

Minwoo Kang

Hyundai Motor Group - Metallic Materials Research Lab

Nam Hoon Goo

Hyundai Steel Company - R&D Center

Seung-Hyun Hong

Hyundai Motor Group - Metallic Materials Research Lab

Jae-Hyeok Shim

Korea University of Science and Technology (UST) - High Temperature Energy Materials Research Center

Young-Kook Lee

Yonsei University - Department of Materials Science and Engineering

Kyung Jong Lee

Hanyang University - Division of Materials Science and Engineering

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, showing a big improvement compared with a previous model.

Keywords: phase transformations, kinetics, steels, modeling, inverse additivity rule

Suggested Citation

Kim, Jeong Min and Kang, Minwoo and Goo, Nam Hoon and Hong, Seung-Hyun and Shim, Jae-Hyeok and Lee, Young-Kook and Lee, Kyung Jong, A Simple Mathematical Model for Establishing Isothermal Transformation Kinetics from Continuous Cooling Data. Available at SSRN: https://ssrn.com/abstract=3538807 or http://dx.doi.org/10.2139/ssrn.3538807

Jeong Min Kim (Contact Author)

Hanyang University - Division of Materials Science and Engineering

Seoul, 04763
Korea, Republic of (South Korea)

Minwoo Kang

Hyundai Motor Group - Metallic Materials Research Lab

Gyeonggi, 18280
Korea, Republic of (South Korea)

Nam Hoon Goo

Hyundai Steel Company - R&D Center

Chungnam, 31719
Korea, Republic of (South Korea)

Seung-Hyun Hong

Hyundai Motor Group - Metallic Materials Research Lab

Gyeonggi, 18280
Korea, Republic of (South Korea)

Jae-Hyeok Shim

Korea University of Science and Technology (UST) - High Temperature Energy Materials Research Center ( email )

Seoul, 02792
Korea, Republic of (South Korea)

Young-Kook Lee

Yonsei University - Department of Materials Science and Engineering ( email )

Seoul, 03722
Korea, Republic of (South Korea)

Kyung Jong Lee

Hanyang University - Division of Materials Science and Engineering

Seoul, 04763
Korea, Republic of (South Korea)

Here is the Coronavirus
related research on SSRN

Paper statistics

Downloads
11
Abstract Views
136
PlumX Metrics