Effect of (Mo, W) substitution for Nb on glass forming ability and magnetic properties of Fe-Co-based bulk amorphous alloys fabricated by centrifugal casting

被引：25
作者：
Kucuk, Ilker [1 ]
Aykol, Muratahan [2 ]
Uzun, Orhan [3 ]
Yildirim, Mehmet [2 ]
Kabaer, Mehmet [1 ]
Duman, Nagehan [2 ]
Yilmaz, Fikret [3 ]
Erturk, Kadir [4 ]
Akdeniz, M. Vedat [2 ]
Mekhrabov, Amdulla O. [2 ]
机构：
[1] Uludag Univ, Dept Phys, Fac Arts & Sci, TR-16059 Bursa, Turkey
[2] Middle E Tech Univ, Novel Alloys Design & Dev Lab NOVALAB, Dept Met & Mat Engn, TR-06531 Ankara, Turkey
[3] Gaziosmanpasa Univ, Dept Phys, Fac Arts & Sci, TR-60250 Tokat, Turkey
[4] Namik Kemal Univ, Fac Arts & Sci, Dept Phys, TR-59030 Tekirdag, Turkey
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 05期
关键词：
Bulk metallic glasses (BMGs); Centrifugal casting; Magnetic materials; METALLIC GLASSES; DENSITY;
D O I：
10.1016/j.jallcom.2010.11.011
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, effects of simultaneous Mo and W substitution for Nb additions on the stability and magnetic properties of Fe-Co-based bulk metallic glass (BMG) alloys fabricated by centrifugal casting are investigated. The saturation magnetization (J(s)) and coercivity (H(c)) for the as-cast Fe(36)CO(36)B(19.2)Si(4.8)X(4) (X = Nb or Mo(0.5)W(0.5)) BMG alloys and melt-spun Fe(36)Co(36)B(19.2)Si(4.8)Mo(2)W(2) were in the range of 1.02-1.57T and 11.13-1685 A/m, respectively. The Fe(36)Co(36)B(19.2)Si(4.8)X(4) (X = Nb or Mo(0.5)W(0.5)) BMG alloys in the shape of wedge with the maximum thickness of 1.5-2 mm were obtained successfully by means of conventional centrifugal casting. Replacing Nb with Mo(0.5)W(0.5) deteriorates magnetic properties in bulk form and reduces the GFA of the alloy due to promoting the precipitation of non-magnetic compounds, while it results in good soft magnetic properties in melt-spun ribbon form. (C) 2010 Elsevier B.V. All rights reserved.
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页码：2334 / 2337
页数：4
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