TIME AND TEMPERATURE-DEPENDENCE OF NANOCRYSTALLINE STRUCTURE FORMATION IN A FINEMET-TYPE AMORPHOUS ALLOY

被引：31

作者：

VARGA, LK

BAKOS, E

KISDIKOSZO, E

ZSOLDOS, E

KISS, LF

机构：

[1] HUNGARIAN ACAD SCI,KFKI,SOLID STATE PHYS RES INST,H-1525 BUDAPEST,HUNGARY

[2] HUNGARIAN ACAD SCI,KFKI,MAT SCI RES INST,POB 49,H-1525 BUDAPEST,HUNGARY

[3] TECH UNIV BUDAPEST,FAC ELECT ENGN,H-1111 BUDAPEST,HUNGARY

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1994年 / 133卷 / 1-3期

关键词：

Composition effects - Crystal structure - Deterioration - Grain size and shape - Iron alloys - Magnetic field effects - Magnetic properties - Segregation (metallography) - Thermal effects - X ray analysis;

D O I：

10.1016/0304-8853(94)90546-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic softness and nanocrystalline structure formation of Fe73.5Cu1Nb3Si13.5B9 Finemet alloy as a function of annealing temperature (500-600-degrees-C) and annealing time (5 s-3 h) were investigated by means of magnetic measurements, DSC and X-ray diffractometry. Annealed at 550-degrees-C the grain size, the solute silicon content of alpha-Fe grains and the improvement in magnetic softness saturates as a function of time. The deterioration of the magnetic softness after annealing at 575-degrees-C is attributed to the Fe3Si compound which segregates from the alpha-Fe solid solution, giving a third intermediate peak on the well-known double-peaked DSC diagram. The crystallization products appearing after annealing at 600-degrees-C destroy the intergranular magnetic coupling and give rise to a magnetic hardening.

引用

页码：280 / 282

页数：3

共 9 条

[1] POWER LOSS MEASUREMENTS IN AMORPHOUS SOFT MAGNETIC CORES [J].