EVOLUTION OF CRYSTALLIZATION OF THE FECOB AMORPHOUS-ALLOYS

被引：7
|
作者：
STERGIOUDIS, G
IVANOV, G
POLYCHRONIADIS, EK
机构：
[1] ARISTOTELIAN UNIV SALONIKA,APPL PHYS LAB,DEPT PHYS,GR-54006 SALONIKA,GREECE
[2] UNIV SOFIA,INORGAN CHEM TECHNOL DEPT CHEM,BU-1126 SOFIA,BULGARIA
来源：
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1991年 / 124卷 / 02期
关键词：
D O I：
10.1002/pssa.2211240203
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Non-isothermal crystallization of as-quenched and pre-annealed amorphous FeCoB alloys is investigated by means of differential scanning calorimetry, X-ray diffraction, and transmission electron microscopy. Crystallization takes place with continuous heating in two steps at peak temperatures of about 685 and 774 K, respectively, according to the Fe/Co ratio. Precipitation of alpha-iron occurs by dendritic growth in the first stage followed by the metastable Fe3B phase and cubic and hexagonal cobalt while stable boride phases are formed during the second stage. Prolonged annealing drastically lowers the first step crystallization temperature.
引用
收藏
页码：393 / 399
页数：7
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