Original scientific paper

Kinetics analysis of solidification process of 1035 steel at different cooling rates

G. L. Tan ; School of Materials Science and Engineering, Yingkou Institute of Technology, Liaoning, China
D. Tang ; School of Mechanical and Power Engineering, Yingkou Institute of Technology Liaoning, China
L. L. Guo ; School of Materials Science and Engineering, Yingkou Institute of Technology, Liaoning, China
Q. Q. Zhang ; School of Materials Science and Engineering, Yingkou Institute of Technology, Liaoning, China
F. D. Wang ; School of Materials Science and Engineering, Yingkou Institute of Technology, Liaoning, China

Abstract

It is of great theoretical significance to study the solidification kinetics of metal materials for improving the microstructure and properties. In this paper, the Differential Scanning Calorimetry (DSC) was used to measure the enthalpy change of solidification process of 1035 steel at different cooling rates. The activation energy of the solidification process was determined by the equal conversion method based on the data of enthalpy. The mechanism function of the solidification process was also determined. It is shown that the value of the activation energy of solidification process varied with the solidification fraction, and the mechanism functions of solidification process are different in different temperature ranges, which are –ln(1– α) for 1 504-1 502 °C –ln(1–α)1/2 for 1 500-1 942 °C and –ln(1– α)2/5 for_1 490 °C respectively.

Keywords

1035 steel; solidification kinetics; enthalpy; the activation energy; mechanism

Hrčak ID:

300986

URI

https://hrcak.srce.hr/300986

Publication date:

3.7.2023.

Visits: 625 *