Co–Fe–B–Si–Nb bulk glassy alloys with superhigh strength and extremely low magnetostriction

Abstract

Articles you may be interested inEnhancement of glass-forming ability of FeCoNiBSiNb bulk glassy alloys with superhigh strength and good softmagnetic properties

Fe- and Co-based bulk glassy alloys with ultrahigh strength of over 4000MPa

“…For the last one decade, we have tried to develop high strength materials with strength of over 3300 MPa for Fe-and Co-based alloys in wire [2] or bulk [3,4] form through the modification to disordered atomic configurations by using conventional inexpensive production techniques in air, gas shield atmosphere or water. As a result, the upper strength limit of glassy alloys was significantly increased to over 4000 MPa for Fe- [5][6][7] and Co-based [8][9][10] bulk glassy alloys. It is thus expected that the Fe-and Co-based bulk glassy alloys can be used as a new type of ultrahigh strength material.…”

Thermal stability and magnetic properties of partially Co-substituted (Fe71.2B24Y4.8)96Nb4 bulk metallic glasses

“…9 Fe-based BMGs typically exhibit a wide supercooled liquid region of almost 40 K, and good soft magnetic properties, such as 1.2 T for saturation magnetization and less than 2 A/m coercivity. 11,12 In most of cases, Fe-based BMGs with very good glass-forming ability (GFA) 13 Few years ago, a new Fe-based BMG alloy system with high GFA but consisting of a small number of constituting elements was developed by Kim et al 14 As a starting alloy composition, they selected Fe 71.2 B 24 Y 4.8 since high GFA (a maximum diameter for glass formation of 1 mm) has been reported by Zhang et al 15 . Further, Nb was chosen as a candidate for the fourth alloying element based on the empirical rules for achieving high GFA.…”

Preparation and magnetic properties of (Co0.6Fe0.3Ni0.1)70−x (B0.811Si0.189)25+x Nb5 bulk glassy alloys

“…In fact, soft magnetic materials are one of the most important components for power electronics, electronic compass, electronic current transformers [1][2][3], and so on. Among the magnetic materials, ferromagnetic bulk glassy alloys (BGAs) are an important components due to their excellent magnetic properties, and since the Fe-(Al, Ga)-metalloid system was synthesized for the first time in 1995 [4], a number of Fe-and Co-based BGAs have been developed for the purpose of applications as functional and structural materials [5][6][7][8][9][10][11][12]. Among them, Co-based BGAs are drawing increasing attention due to their excellent softmagnetic properties, such as high saturation magnetization (I s ), low coercive field (H c ) and high effective permeability (l e ) [8,10,13], especially for the amorphous wire and ribbons, which exhibit giant magneto-impedance (GMI) effect, that can be developed as high-sensitivity sensor materials [14][15][16].…”