Influence of Bridgman solidification on microstructures and magnetic behaviors of a non-equiatomic FeCoNiAlSi high-entropy alloy
Abstract
The non-equiatomic FeCoNiAlSi alloy is prepared by the Bridgman solidification (BS) technique at different withdrawal velocities (V = 30, 100, and 200 μm/s). Various characterization techniques have been used to study the microstructure and crystal orientation. The morphological evolutions accompanying the crystal growth of the alloy prepared at different withdrawal velocities are nearly the same, from equiaxed grains to columnar crystals. The transition of coercivity is closely related to the local microstructure, while the saturation magnetization changes little at different sites. The coercivity can be significantly reduced from the equiaxed grain area to the columnar crystal area when the applied magnetic field direction is parallel to the crystal growth direction, no matter what is the withdrawal velocity. As a result, the alloy possesses magnetic anisotropy when the applied magnetic field is in different directions.
- Authors:
-
- Univ. of Science and Technology Beijing, Beijing (China)
- Univ. of Tennessee, Knoxville, TN (United States)
- Publication Date:
- Research Org.:
- Univ. of Tennessee, Knoxville, TN (United States); Univ. of Illinois at Urbana-Champaign, IL (United States)
- Sponsoring Org.:
- USDOE Office of Fossil Energy (FE); USDOE Office of Fossil Energy and Carbon Management (FECM)
- OSTI Identifier:
- 1224524
- Alternate Identifier(s):
- OSTI ID: 1250570
- Grant/Contract Number:
- FE0011194; FE-0008855; FE-0011194; FE-0024054
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Intermetallics
- Additional Journal Information:
- Journal Volume: 67; Journal Issue: C; Journal ID: ISSN 0966-9795
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; high entropy alloy; magnetic property; anisotropy; crystal growth
Citation Formats
Zuo, Tingting, Yang, Xiao, Liaw, Peter K., and Zhang, Yong. Influence of Bridgman solidification on microstructures and magnetic behaviors of a non-equiatomic FeCoNiAlSi high-entropy alloy. United States: N. p., 2015.
Web. doi:10.1016/j.intermet.2015.08.014.
Zuo, Tingting, Yang, Xiao, Liaw, Peter K., & Zhang, Yong. Influence of Bridgman solidification on microstructures and magnetic behaviors of a non-equiatomic FeCoNiAlSi high-entropy alloy. United States. https://doi.org/10.1016/j.intermet.2015.08.014
Zuo, Tingting, Yang, Xiao, Liaw, Peter K., and Zhang, Yong. Mon .
"Influence of Bridgman solidification on microstructures and magnetic behaviors of a non-equiatomic FeCoNiAlSi high-entropy alloy". United States. https://doi.org/10.1016/j.intermet.2015.08.014. https://www.osti.gov/servlets/purl/1224524.
@article{osti_1224524,
title = {Influence of Bridgman solidification on microstructures and magnetic behaviors of a non-equiatomic FeCoNiAlSi high-entropy alloy},
author = {Zuo, Tingting and Yang, Xiao and Liaw, Peter K. and Zhang, Yong},
abstractNote = {The non-equiatomic FeCoNiAlSi alloy is prepared by the Bridgman solidification (BS) technique at different withdrawal velocities (V = 30, 100, and 200 μm/s). Various characterization techniques have been used to study the microstructure and crystal orientation. The morphological evolutions accompanying the crystal growth of the alloy prepared at different withdrawal velocities are nearly the same, from equiaxed grains to columnar crystals. The transition of coercivity is closely related to the local microstructure, while the saturation magnetization changes little at different sites. The coercivity can be significantly reduced from the equiaxed grain area to the columnar crystal area when the applied magnetic field direction is parallel to the crystal growth direction, no matter what is the withdrawal velocity. As a result, the alloy possesses magnetic anisotropy when the applied magnetic field is in different directions.},
doi = {10.1016/j.intermet.2015.08.014},
journal = {Intermetallics},
number = C,
volume = 67,
place = {United States},
year = {Mon Sep 07 00:00:00 EDT 2015},
month = {Mon Sep 07 00:00:00 EDT 2015}
}
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