PHASE-TRANSFORMATION AT HIGH-TEMPERATURE AND COERCIVITY OF SM(CO,CU,FE,ZR)7-9 MAGNET ALLOYS

被引：28

作者：

MORITA, Y

UMEDA, T

KIMURA, Y

机构：

[1] Univ of Tokyo, Tokyo, Jpn, Univ of Tokyo, Tokyo, Jpn

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1987年 / 23卷 / 05期

关键词：

MAGNETIC MATERIALS - Thermal Effects - METALLOGRAPHY - Phase Diagrams - SAMARIUM COBALT COPPER IRON ALLOYS;

D O I：

10.1109/TMAG.1987.1065423

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 phase diagram near compositions of magnet alloys, that is, Sm-Co-13. 0at%Cu-10. 0at%Fe, Sm-Co-7. 0at%Cu-22. 0at%Fe and sM-cO-7. 0at%Cu-22. 0at%Fe-2. 0at%Zr sections of the phase diagram were determined in the Sm content range from 6 to 16 at%. Furthermore, relationships between phase transformation at high temperature and coercivity were investigated. The Sm//2(Co, Cu, Fe, Zr)//1//7(Zr equals 0 and 2. 0at%) intermetallic compound (2/17 phase) has the hexagonal TbCu//7, hexagonal Th//2Ni//1//7 or rhombohedral Th//2Zn//1//7 structure depending on the quantity of Cu, Fe and Zr, and temperature. The alloys quenched after homogenizing treatment, by which the 2/17 phase with TbCu//7 structure is obtained, can possess high coercivity after the aging treatment.

引用

页码：2702 / 2704

页数：3

共 12 条

[1]

HIGUCHI A, 1981, 5TH P INT WORKSH RAR, P583

[2]

IWAMA Y, 1983, 7TH P INT WORKSH RAR, P353

[3] MICROSTRUCTURE OF AGED (CO,CU,FE)7SM MAGNETS [J].