Synthesis of ferromagnetic Fe-based bulk glassy alloys in the Fe-Nb-B-Y system

Authors
Song, DSKim, JHFleury, EKim, WTKim, DH
Issue Date
2005-03-08
Publisher
ELSEVIER SCIENCE SA
Citation
JOURNAL OF ALLOYS AND COMPOUNDS, v.389, no.1-2, pp.159 - 164
Abstract
The effect of substitution of Y for Fe on the glass forming ability (GFA), magnetic and mechanical property has been studied in Fe77-xNb6B17Yx (x = 0-4) alloys. Replacement of 1-4at.% Fe by Y increased the thermal stability of the glass and liquid phase in the Fe-Nb-B-Y alloys. It was found that the Fe74Nb6B17Y3 alloy exhibited the largest T-rg (0.60) and gamma (= T-x/[T-g + T-L])(0.396) values enabling the fabrication of bulk metallic glass (BMG) with a diameter of up to 2 mm. The BMG alloy (greater than or equal to 74 at.% Fe) exhibited high compressive fracture strength and hardness of about 3 GPa and 1060 Hv, respectively. The partial replacement of 3 at.% Fe by Y in Fe-Nb-Y-B improved the alloy magnetization saturation by about 10%. (C) 2004 Elsevier B.V. All rights reserved.
Keywords
MAGNETIC-PROPERTIES; SUPERCOOLED LIQUID; METALLIC GLASSES; AMORPHOUS-ALLOYS; STRENGTH; HF; MAGNETIC-PROPERTIES; SUPERCOOLED LIQUID; METALLIC GLASSES; AMORPHOUS-ALLOYS; STRENGTH; HF; iron-based alloy; glass forming ability; ferromagnetic properties
ISSN
0925-8388
URI
https://pubs.kist.re.kr/handle/201004/136648
DOI
10.1016/j.jallcom.2004.08.014
Appears in Collections:
KIST Article > 2005
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