Campus Units

Aerospace Engineering, Materials Science and Engineering, Mechanical Engineering, Ames Laboratory

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

8-31-2018

Journal or Book Title

Journal of Alloys and Compounds

DOI

10.1016/j.jallcom.2018.08.293

Abstract

The microstructural evolution of Fe-6.5 wt.% Si alloy during rapid solidification was studied over a quenching rate of 4 × 104 K/s to 8 × 105 K/s. The solidification and solid-state diffusional transformation processes during rapid cooling were analyzed via thermodynamic and kinetic calculations. The Allen-Cahn theory was adapted to model the experimentally measured bcc_B2 antiphase domain sizes under different cooling rates. The model was calibrated based on the experimentally determined bcc_B2 antiphase domain sizes for different wheel speeds and the resulting cooling rates. Good correspondence of the theoretical and experimental data was obtained over the entire experimental range of cooling rates. Along with the asymptotic domain size value at the infinite cooling rates, the developed model represents a reliable extrapolation for the cooling rate > 106 K/s and allows one to optimize the quenching process.

Comments

This is a manuscript of an article published as Cui, Senlin, Gaoyuan Ouyang, Tao Ma, Chad R. Macziewski, Valery I. Levitas, Lin Zhou, Matthew J. Kramer, and Jun Cui. "Thermodynamic and kinetic analysis of the melt spinning process of Fe-6.5 wt.% Si alloy." Journal of Alloys and Compounds (2018). DOI: 10.1016/j.jallcom.2018.08.293. Posted with permission.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Copyright Owner

Elsevier B.V.

Language

en

File Format

application/pdf

Available for download on Saturday, August 31, 2019

Published Version

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