Effect of Tb on the intrinsic coercivity and impact toughness of sintered Nd-Dy-Fe-B magnets

被引：41

作者：

Hu, Z. H. ^{[1
,2
]}

Lian, F. Z. ^{[1
]}

Zhu, M. G. ^{[2
]}

Li, W. ^{[2
]}

机构：

[1] Northeastern Univ, Minist Educ, Key Lab Anisotrophy & Texture Mat, Shenyang 110004, Peoples R China

[2] Cent Iron & Steel Res Inst, Div Funct Mat, Beijing 100081, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2008年 / 320卷 / 11期

基金：

中国国家自然科学基金;

关键词：

impact toughness; sintered magnets; microstructure; intrinsic coercivity;

D O I：

10.1016/j.jmmm.2008.01.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of Tb on the coercivity and impact toughness of sintered Nd-Dy-Fe-B magnets has been investigated. The results showed that the addition of Tb enhanced the intrinsic coercivity, reduced the remanence and improved the impact toughness of sintered magnets. The optimum impact toughness of sintered magnets was achieved when 1.0 at% Tb was incorporated. The possible reasons for increasing the intrinsic coercivity and improving impact toughness of sintered magnets were analyzed, and the relations between the microstructure and impact toughness of sintered magnets were studied. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1735 / 1738

页数：4

共 9 条

[1] R2FE14B MATERIALS - INTRINSIC-PROPERTIES AND TECHNOLOGICAL ASPECTS [J].

HERBST, JF .

REVIEWS OF MODERN PHYSICS, 1991, 63 (04) :819-898

[2] Effects of Nb on the coercivity and impact toughness of sintered Nd-Fe-B magnets [J].

Hu, Z. H. ;

Zhu, M. G. ;

Li, W. ;

Lian, F. Z. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2008, 320 (3-4) :96-99

[3] Influence of alloying elements on mechanical properties and microstructures of sintered Nd-Fe-Co-B magnet [J].

Jiang, JH ;

Zeng, ZP ;

Wu, JS ;

Tokunaga, M .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 214 (1-2) :61-68

[4]

JIN ZZ, 1996, CHARACTERIZATION MEC, P146

[5] Microstructure and magnetic properties of sintered NdFeB magnets with improved impact toughness [J].

Liu, JF ;

Vora, P ;

Walmer, MH ;

Kottcamp, E ;

Bauser, SA ;

Higgins, A ;

Liu, S .

JOURNAL OF APPLIED PHYSICS, 2005, 97 (10)

[6]

Liu S, 2002, RARE EARTH MAGNETS AND THEIR APPLICATIONS, P360

[7] NUCLEATION OF REVERSED DOMAINS AT GRAIN-BOUNDARIES [J].

SCHREFL, T ;

SCHMIDTS, HF ;

FIDLER, J ;

KRONMULLER, H .

JOURNAL OF APPLIED PHYSICS, 1993, 73 (10) :6510-6512

[8] Sintered Nd-Fe-B magnets with improved impact stability [J].

Wang, H. J. ;

Li, A. H. ;

Zhu, M. G. ;

Li, W. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2006, 307 (02) :268-272

[9] Effect of Pr and Dy substitution on the impact resistance of sintered Nd-Fe-B magnets [J].

Wang, Huijie ;

Li, Anhua ;

Li, Wei .

INTERMETALLICS, 2007, 15 (07) :985-988

← 1 →