EFFECT OF HIGH-PRESSURE TORSION ON THE STRUCTURE AND MAGNETIC PROPERTIES OF As-CAST Nd9.5Fe84.5B6 ALLOY

被引：0

作者：

Polikutkina, Svetlana V. ^{[1
]}

Menushenkov, Vladimir P. ^{[1
]}

Skorodumov, Sergei V. ^{[1
]}

Zehetbauer, Michael ^{[2
]}

Horky, Jelena ^{[2
]}

机构：

[1] Natl Res Technol Univ MISiS, Moscow, Russia

[2] Univ Vienna, Fac Phys, A-1010 Vienna, Austria

来源：

METAL 2013: 22ND INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS | 2013年

关键词：

NdFeB alloy; high-pressure torsion; magnetic properties; ND12FE82B6; ALLOY;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of high-pressure torsion (HPT) on the structure and magnetic properties of as-cast Nd9.5Fe84.5B6 alloy was studied by X-ray diffraction analysis, differential thermal analysis, and magnetic measurements performed by a vibrating sample magnetometer. The results show that the material subjected to high-pressure torsion consists of alpha-Fe and an amorphous phase, which can be transformed into Nd2Fe14B/alpha-Fe nanocomposite by subsequent annealing. The maximum coercivity of H-c = 360 A.m(-1) and (BH)(max) = 166 kJ. m(-3) were obtained by HPT using 20 revolutions. The parameters reached are higher than those of the initial sample by a factor of 20.

引用

页码：1542 / 1545

页数：4

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