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Title: Thermodynamic and kinetic analysis of the melt spinning process of Fe-6.5 wt.% Si alloy

Abstract

Here, 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.

Authors:
ORCiD logo [1];  [1];  [2];  [1];  [3];  [2];  [2]; ORCiD logo [3]
  1. Iowa State Univ., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States)
  3. Ames Lab. and Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1481871
Alternate Identifier(s):
OSTI ID: 1778265; OSTI ID: 1864019
Report Number(s):
IS-J-9783
Journal ID: ISSN 0925-8388; PII: S0925838818331906
Grant/Contract Number:  
AC02-07CH11358; EE0007794
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Alloys and Compounds
Additional Journal Information:
Journal Volume: 771; Journal Issue: C; Journal ID: ISSN 0925-8388
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Fe-6.5 wt.% Si; Melt spinning; Quenching; Diffusion; Domain growth; Fe-6.5%Si Steel

Citation Formats

Cui, Senlin, Ouyang, Gaoyuan, Ma, Tao, Macziewski, Chad R., Levitas, Valery I., Zhou, Lin, Kramer, Matthew J., and Cui, Jun. Thermodynamic and kinetic analysis of the melt spinning process of Fe-6.5 wt.% Si alloy. United States: N. p., 2018. Web. doi:10.1016/j.jallcom.2018.08.293.
Cui, Senlin, Ouyang, Gaoyuan, Ma, Tao, Macziewski, Chad R., Levitas, Valery I., Zhou, Lin, Kramer, Matthew J., & Cui, Jun. Thermodynamic and kinetic analysis of the melt spinning process of Fe-6.5 wt.% Si alloy. United States. https://doi.org/10.1016/j.jallcom.2018.08.293
Cui, Senlin, Ouyang, Gaoyuan, Ma, Tao, Macziewski, Chad R., Levitas, Valery I., Zhou, Lin, Kramer, Matthew J., and Cui, Jun. Fri . "Thermodynamic and kinetic analysis of the melt spinning process of Fe-6.5 wt.% Si alloy". United States. https://doi.org/10.1016/j.jallcom.2018.08.293. https://www.osti.gov/servlets/purl/1481871.
@article{osti_1481871,
title = {Thermodynamic and kinetic analysis of the melt spinning process of Fe-6.5 wt.% Si alloy},
author = {Cui, Senlin and Ouyang, Gaoyuan and Ma, Tao and Macziewski, Chad R. and Levitas, Valery I. and Zhou, Lin and Kramer, Matthew J. and Cui, Jun},
abstractNote = {Here, 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.},
doi = {10.1016/j.jallcom.2018.08.293},
journal = {Journal of Alloys and Compounds},
number = C,
volume = 771,
place = {United States},
year = {2018},
month = {8}
}

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Cited by: 7 works
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Works referencing / citing this record: