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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Structure evolution and changes in magnetic properties of severe plastic deformed Nd(Pr)-Fe-B alloys during annealing
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Structure evolution and changes in magnetic properties of severe plastic deformed Nd(Pr)-Fe-B alloys during annealing

机译：严重塑性变形Nd（Pr）-Fe-B合金退火过程中的组织演变和磁性能变化

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摘要

Structural changes and hysteresis properties of Nd(Pr)-Fe-B alloys of various compositions were studied after severe torsion straining under high pressure and following annealing. It was shown that in all the alloys studied, severe plastic deformation leads to formation of ultrafine-grained non-equilibrium structure and, at extremely large strains, even to formation of an amorphous structure. Annealing resulted in crystallization of alloys, formation of stable magnetic and non-magnetic phases and in marked improvements in hard magnetic properties. Homogenization of alloys is responsible for an increase in coercivity of the deformed samples. (C) 1998 Elsevier Science S.A. All rights reserved. [References: 5]
机译：在高压下严重扭转应变并退火之后，研究了各种组成的Nd（Pr）-Fe-B合金的结构变化和磁滞性能。结果表明，在所有研究的合金中，严重的塑性变形都会导致形成超细晶粒的非平衡结构，并且在非常大的应变下甚至会形成无定形结构。退火导致合金结晶，形成稳定的磁性和非磁性相，并显着改善硬磁性能。合金的均质化导致变形样品矫顽力的增加。 （C）1998 Elsevier Science S.A.保留所有权利。 [参考：5]

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