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Title: Development of magnetic Fe-based metallic glasses without metalloids

Abstract

The glass-forming ability of Fe-based metallic glasses has a direct relationship with their metalloid content. A good glass-former usually needs a metalloid content of approximately 20 at. %. However, a high metalloid content causes deterioration not only in magnetic properties but also in elasticity and plasticity. Based on destabilization of the solid state we have developed a series of metalloid-free Fe-based metallic glasses of composition (Fe{sub 0.582}Co{sub 0.418}){sub 100-x-y}Cr{sub x}Zr{sub y} (10{<=}x{<=}28 and 8{<=}y{<=}11). Via this destabilization the liquid state is stabilized, which results in a decreasing liquidus temperature. The mechanical and magnetic properties of the metalloid-free Fe-based metallic glass with the highest Fe and Co fractions were analyzed. The alloy of composition (Fe{sub 0.582}Co{sub 0.418}){sub 80}Cr{sub 10}Zr{sub 10} exhibits bending elasticity and plasticity. Magnetization measurements reveal a saturation magnetization of up to 1.1 T and an inverted hysteresis. The origin of this inverted hysteresis presumably lies in the inclination to decompose in a ferromagnetic iron-rich {alpha}{sub 1} phase and an antiferromagnetic chromium-rich {alpha}{sub 2} phase.

Authors:
; ;  [1]
  1. Laboratory of Metal Physics and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH) Zuerich, Wolfgang-Pauli-Strasse 10, CH-8093 Zurich (Switzerland)
Publication Date:
OSTI Identifier:
20787799
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 99; Journal Issue: 2; Other Information: DOI: 10.1063/1.2165402; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIFERROMAGNETIC MATERIALS; ANTIFERROMAGNETISM; CHROMIUM ALLOYS; COBALT ALLOYS; ELASTICITY; FERROMAGNETIC MATERIALS; HYSTERESIS; IRON BASE ALLOYS; MAGNETIC PROPERTIES; MAGNETIZATION; METALLIC GLASSES; PLASTICITY; SATURATION; ZIRCONIUM ALLOYS

Citation Formats

Mastrogiacomo, Giovanni, Kradolfer, Juerg, and Loeffler, Joerg F. Development of magnetic Fe-based metallic glasses without metalloids. United States: N. p., 2006. Web. doi:10.1063/1.2165402.
Mastrogiacomo, Giovanni, Kradolfer, Juerg, & Loeffler, Joerg F. Development of magnetic Fe-based metallic glasses without metalloids. United States. doi:10.1063/1.2165402.
Mastrogiacomo, Giovanni, Kradolfer, Juerg, and Loeffler, Joerg F. Sun . "Development of magnetic Fe-based metallic glasses without metalloids". United States. doi:10.1063/1.2165402.
@article{osti_20787799,
title = {Development of magnetic Fe-based metallic glasses without metalloids},
author = {Mastrogiacomo, Giovanni and Kradolfer, Juerg and Loeffler, Joerg F.},
abstractNote = {The glass-forming ability of Fe-based metallic glasses has a direct relationship with their metalloid content. A good glass-former usually needs a metalloid content of approximately 20 at. %. However, a high metalloid content causes deterioration not only in magnetic properties but also in elasticity and plasticity. Based on destabilization of the solid state we have developed a series of metalloid-free Fe-based metallic glasses of composition (Fe{sub 0.582}Co{sub 0.418}){sub 100-x-y}Cr{sub x}Zr{sub y} (10{<=}x{<=}28 and 8{<=}y{<=}11). Via this destabilization the liquid state is stabilized, which results in a decreasing liquidus temperature. The mechanical and magnetic properties of the metalloid-free Fe-based metallic glass with the highest Fe and Co fractions were analyzed. The alloy of composition (Fe{sub 0.582}Co{sub 0.418}){sub 80}Cr{sub 10}Zr{sub 10} exhibits bending elasticity and plasticity. Magnetization measurements reveal a saturation magnetization of up to 1.1 T and an inverted hysteresis. The origin of this inverted hysteresis presumably lies in the inclination to decompose in a ferromagnetic iron-rich {alpha}{sub 1} phase and an antiferromagnetic chromium-rich {alpha}{sub 2} phase.},
doi = {10.1063/1.2165402},
journal = {Journal of Applied Physics},
number = 2,
volume = 99,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}