The effect of Cu minor addition on the non-isothermal kinetic of nano-crystallites formation in Fe41Co7Cr15Mo14Y2C15B6 BMG

被引：13

作者：

Hasani, S. ^{[1
]}

Rezaei-Shahreza, P. ^{[1
]}

Seifoddini, A. ^{[1
]}

机构：

[1] Yazd Univ, Dept Min & Met Engn, Yazd 89195741, Iran

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2021年 / 143卷 / 05期

关键词：

Fe-based bulk metallic glasses (BMGs); Glass-forming ability (GFA); Nanocomposite; Non-isothermal kinetic; Isoconversional method; Fitting methods; GLASS-FORMING ABILITY; BULK METALLIC-GLASS; MAGNETIC-PROPERTIES; MECHANICAL-PROPERTIES; THERMAL-STABILITY; ACTIVATION-ENERGY; AMORPHOUS ALLOY; MATRIX COMPOSITES; FREE-VOLUME; MO;

D O I：

10.1007/s10973-020-09716-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this research, the effect of minor addition of Cu on the non-isothermal crystallization kinetic of Fe41Co7Cr15Mo14Y2C15B6 BMG was studied by using DSC technique at various heating rates of 5, 10, and 20 K min(-1). The results of XRD and FE-SEM represented that the morphologies of nano-crystallites changed by addition of Cu. Also, triple kinetics parameters including activation energy (E), pre-exponential factor (A), and reaction model (g (alpha)) of this solid-state process were determined by using Starink and Friedman isoconversional, IKP, and fitting methods. The obtained activation energies showed that the BMGs have the highest GFA among Fe-based BMGs. Also, all various stages of crystallization process of this BMG were controlled by Avrami-Erofeev.

引用

页码：3365 / 3375

页数：11

共 73 条

[1] Nanocrystal formation, structure and magnetic properties of Fe-Si-B amorphous alloy after deformation [J].