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

Cui, Senlin; Ouyang, Gaoyuan; Ma, Tao; Macziewski, Chad R.; Levitas, Valery I.; Zhou, Lin; Kramer, Matthew J.; Cui, Jun

doi:10.1016/j.jallcom.2018.08.293

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

Journal Article · Fri Aug 31 00:00:00 EDT 2018 · Journal of Alloys and Compounds

DOI:https://doi.org/10.1016/j.jallcom.2018.08.293· OSTI ID:1481871

^[1]; Ouyang, Gaoyuan ^[1]; Ma, Tao ^[2]; Macziewski, Chad R. ^[1]; Levitas, Valery I. ^[3]; Zhou, Lin ^[2]; Kramer, Matthew J. ^[2];

^[3]

Iowa State Univ., Ames, IA (United States)
Ames Lab., Ames, IA (United States)
Ames Lab. and Iowa State Univ., Ames, IA (United States)

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.

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Research Organization:: Ames Laboratory (AMES), Ames, IA (United States); Iowa State Univ., Ames, IA (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: AC02-07CH11358; EE0007794

OSTI ID:: 1481871

Alternate ID(s):: OSTI ID: 1778265; OSTI ID: 1864019

Report Number(s):: IS-J-9783; PII: S0925838818331906

Journal Information:: Journal of Alloys and Compounds, Vol. 771, Issue C; ISSN 0925-8388

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 21 works

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Ti–Zr–Si–Nb Nanocrystalline Alloys and Metallic Glasses: Assessment on the Structure, Thermal Stability, Corrosion and Mechanical Properties Gabor, Camelia; Cristea, Daniel; Velicu, Ioana-Laura Materials, Vol. 12, Issue 9 https://doi.org/10.3390/ma12091551	journal	May 2019
Promoted diffusion mechanism of Fe2.7wt.%Si-Fe10wt.%Si couples under magnetic field by atomic-scale observations Fan, L. J.; Zhong, Y. B.; Xu, Y. L. Scientific Reports, Vol. 9, Issue 1 https://doi.org/10.1038/s41598-019-56055-0	journal	December 2019

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