THE MAGNETIC AND MECHANICAL-PROPERTIES OF NDFEB TYPE PERMANENT-MAGNETS AND THE EFFECT OF QUENCHING

被引：24

作者：

WITHEY, PA

KENNETT, HM

BOWEN, P

HARRIS, IR

机构：

[1] School of Metallurgy and Materials, University of Birmingham, Birmingham

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1990年 / 26卷 / 05期

关键词：

D O I：

10.1109/20.104817

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The fracture strength of Nd15Fe77B8 and Nd14.5DY1.5NblFe76B7 sintered magnets has been measured to be 285(40)MPa and 240(48)MPa respectively. The fracture mechanism appears to be controlled by a critical level of tensile stress. Quenching from 1370K has been found to reduce the mechanical strength and the intrinsic coercivity of the magnets. Both the rate of cooling from the quench temperature and the value of this temperature also affect the magnetic properties of the alloys markedly. © 1990 IEEE

引用

页码：2619 / 2621

页数：3

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