Thermal Stability of Fe82Nb2B14REM2Amorphous Alloys

被引：6

作者：

Danylyak, M. -O. M. ^{[1
]}

Boichyshyn, L. M. ^{[2
]}

机构：

[1] Ukrainian Natl Acad Sci, Karpenko Physicomech Inst, Lvov, Ukraine

[2] I Franko Lviv Natl Univ, Lvov, Ukraine

来源：

MATERIALS SCIENCE | 2020年 / 55卷 / 06期

关键词：

amorphous metallic alloys; crystallization; kinetic models; activation energy; MAGNETIC-PROPERTIES; CRYSTALLIZATION PROCESS; FE82NB2B14RE2; RE; NB; ADDITIONS; X=0; GD; FE; CR; TB;

D O I：

10.1007/s11003-020-00388-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We analyze the thermal stability and kinetic parameters of crystallization of Fe82Nb2B14REM2(REM = Y, Gd, Tb, or Dy) amorphous metallic alloys by the method of differential scanning calorimetry. It is shown that the alloys based on iron crystallize in two stages. We compute the activation energy of both stages of crystallization of amorphous alloys according to the Kissinger, Ozawa, and Augis-Bennett models. The procedure of doping of the Fe(84)Nb(2)B(14)alloy with rare-earth metals leads to an increase in temperature, in the activation energy of crystallization, and in the frequency factor. The decrease in the crystallization rate constant of alloys caused by doping with rare-earth metals reveals their resistance to temperature treatment.

引用

页码：921 / 929

页数：9

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