skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
 [1];  [1];  [2];  [1]
  1. Univ. of Science and Technology Beijing, Beijing (China)
  2. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Univ. of Tennessee, Knoxville, TN (United States); Univ. of Illinois Urbana-Champaign, Champaign, IL (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1224524
Alternate Identifier(s):
OSTI ID: 1250570
Grant/Contract Number:  
FE0011194; FE-0008855; FE-0011194; FE-0024054
Resource Type:
Journal Article: 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},
url = {https://www.osti.gov/biblio/1224524}, journal = {Intermetallics},
issn = {0966-9795},
number = C,
volume = 67,
place = {United States},
year = {2015},
month = {9}
}

Journal Article:

Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

Save / Share:

Works referencing / citing this record:

Science and technology in high-entropy alloys
journal, January 2018


G-mode magnetic force microscopy: Separating magnetic and electrostatic interactions using big data analytics
journal, May 2016


High-entropy functional materials
journal, September 2018