THE INFLUENCE OF ZIRCONIUM ON SM(COFECUZR)7.2 ALLOYS FOR PERMANENT-MAGNETS .1. IDENTIFICATION OF THE PHASES BY TRANSMISSION ELECTRON-MICROSCOPY

被引：27

作者：

DELANNAY, F ^{[1
]}

DERKAOUI, S ^{[1
]}

ALLIBERT, CH ^{[1
]}

机构：

[1] ECOLE NATL SUPER ELECTROCHIM & ELECTROMET GRENOBLE,THERMODYNAM & PHYSICOCHIM MET LAB,CNRS,UA 29,F-38402 ST MARTIN DHERES,FRANCE

来源：

JOURNAL OF THE LESS-COMMON METALS | 1987年 / 134卷 / 02期

关键词：

MAGNETS;

D O I：

10.1016/0022-5088(87)90565-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An Sm(Co//0//. //6//9Fe//0//. //2//2Cu//0//. //0//6Zr//0//. //0//3)//7//. //2 alloy cast from the melt was exposed to various heat treatments at 1050-850 degree C. The aged alloys were studied by transmission electron microscopy and energy dispersive X-ray-scanning transmission electron microscope microanalysis. The specimens treated at 1050 degree C contain a mixture of Sm//2Co//1//7 and Sm//2Co//7 type phases. Prolonged aging at 850 degree C provokes the additional precipitation of Sm//4Co//1//9 type phase. A treatment similar to that designed for magnet preparation induces the characteristic cellular morphology described in the literature.

引用

页码：249 / 262

页数：14

共 27 条

[1] COBALT RICH REGIONS OF SAMARIUM-COBALT AND GADOLINIUM-COBALT PHASE-DIAGRAMS [J].