High strength CoFe-based glassy alloy with high thermal stability

Qiang, Jianbing; Estévez, Diana; Chang, Chuntao; Man, Qikui; Li, Run-Wei; Wang, Xinming; Inoue, Akihisa

doi:10.1016/j.matlet.2013.09.120

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…Along with this, they also exhibit the highest values of compressive yield strength (over 5000 MPa) [6]. Co-based amorphous alloys are also interesting for their magnetic behavior, like their high permeability, excellent soft magnetic properties, i.e., extraordinary low coercive force of 0.25 A/m, zero magnetostriction [7], giant magnetoimpedance [8] and excellent corrosion resistance [2]. For these reasons, they are the subject of lasting experimental study.…”

Section: Introductionmentioning

confidence: 99%

“…Amorphous alloys are still the subject of scientific interest due to their outstanding combinations of physical, chemical, electrochemical and mechanical properties such as high tensile strength and hardness, extreme elastic strain limit [1,2], or higher corrosion resistance [3,4]. Amorphous materials are commonly prepared through the rapid solidification of melt, casting, forging, evaporation, sputtering and mechanical alloying.…”

Section: Introductionmentioning

confidence: 99%

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Structural Evolution in Wet Mechanically Alloyed Co-Fe-(Ta,W)-B Alloys

Girman

Lisnichuk

Yudina

et al. 2021

Metals

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In the present study, the effect of wet mechanical alloying (MA) on the glass-forming ability (GFA) of Co43Fe20X5.5B31.5 (X = Ta, W) alloys was studied. The structural evolution during MA was investigated using high-energy X-ray diffraction, X-ray absorption spectroscopy, high-resolution transmission electron microscopy and magnetic measurements. Pair distribution function and extended X-ray absorption fine structure spectroscopy were used to characterize local atomic structure at various stages of MA. Besides structural changes, the magnetic properties of both compositions were investigated employing a vibrating sample magnetometer and thermomagnetic measurements. It was shown that using hexane as a process control agent during wet MA resulted in the formation of fully amorphous Co-Fe-Ta-B powder material at a shorter milling time (100 h) as compared to dry MA. It has also been shown that substituting Ta with W effectively suppresses GFA. After 100 h of MA of Co-Fe-W-B mixture, a nanocomposite material consisting of amorphous and nanocrystalline bcc-W phase was synthesized.

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