Nanocrystal formation, structure and magnetic properties of Fe-Si-B amorphous alloy after deformation

被引：45

作者：

Abrosimova, G. ^{[1
]}

Aronin, A. ^{[1
]}

Matveev, D. ^{[1
]}

Pershina, E. ^{[1
]}

机构：

[1] Inst Solid State Phys RAS, Chernogolovka, Moscow District, Russia

来源：

MATERIALS LETTERS | 2013年 / 97卷

关键词：

Amorphous alloys; Deformation; Nanocrystals; Structure and magnetic properties; SEVERE PLASTIC-DEFORMATION;

D O I：

10.1016/j.matlet.2013.01.092

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystallization of Fe78Si13B9 metallic glass under severe plastic deformation was studied by X-ray diffraction and electron microscopy methods and by magnetic property measurements. The plastic deformation of the alloy was carried out by high pressure torsion at a pressure of 4 GPa at room temperature. Deformation was performed by unidirectional torsion and involves serial to-and-fro torsion. Severe plastic deformation of amorphous Fe78Si13B9 alloy was found to induce nanocrystallization with formation of Fe (Si) nanocrystals. The average size of the nanocrystals is 6 nm and a volume fraction of the nanocrystalline phase is more than 50% of the sample. The formation of the nanocrystalline structure leads to increase in saturation magnetization by 40% without appreciable changes of the coercivity. (c) 2013 Published by Elsevier B.V.

引用

页码：15 / 17

页数：3

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