Influence of Bridgman solidification on microstructures and magnetic behaviors of a non-equiatomic FeCoNiAlSi high-entropy alloy

Zuo, Tingting; Yang, Xiao; Liaw, Peter K.; Zhang, Yong

doi:10.1016/j.intermet.2015.08.014

Title: Influence of Bridgman solidification on microstructures and magnetic behaviors of a non-equiatomic FeCoNiAlSi high-entropy alloy

Journal Article · Mon Sep 07 00:00:00 EDT 2015 · Intermetallics

DOI:https://doi.org/10.1016/j.intermet.2015.08.014· OSTI ID:1224524

Zuo, Tingting ^[1]; Yang, Xiao ^[1]; Liaw, Peter K. ^[2]; Zhang, Yong ^[1]

Univ. of Science and Technology Beijing, Beijing (China)
Univ. of Tennessee, Knoxville, TN (United States)

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.

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Research Organization:: Univ. of Tennessee, Knoxville, TN (United States); Univ. of Illinois at Urbana-Champaign, IL (United States)

Sponsoring Organization:: USDOE Office of Fossil Energy (FE); USDOE Office of Fossil Energy and Carbon Management (FECM)

Grant/Contract Number:: FE0011194; FE-0008855; FE-0011194; FE-0024054

OSTI ID:: 1224524

Alternate ID(s):: OSTI ID: 1250570

Journal Information:: Intermetallics, Vol. 67, Issue C; ISSN 0966-9795

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 45 works

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Electromagnetic wave absorption properties of FeCoNiCrAl _0.8 high entropy alloy powders and its amorphous structure prepared by high-energy ball milling Yang, Peipei; Liu, Ying; Zhao, Xiuchen Journal of Materials Research, Vol. 31, Issue 16 https://doi.org/10.1557/jmr.2016.257	journal	July 2016
High-entropy functional materials Gao, Michael C.; Miracle, Daniel B.; Maurice, David Journal of Materials Research, Vol. 33, Issue 19 https://doi.org/10.1557/jmr.2018.323	journal	September 2018
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Compositional Design of Soft Magnetic High Entropy Alloys by Minimizing Magnetostriction Coefficient in (Fe0.3Co0.5Ni0.2)100−x(Al1/3Si2/3)x System Zhang, Yong; Zhang, Min; Li, Dongyue Metals, Vol. 9, Issue 3 https://doi.org/10.3390/met9030382	journal	March 2019

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