Fabrication and characterization of amorphous-nanocrystalline Al80Fe10Ti5M3B2 (M=Cr, Ni and Nb) alloys

被引：0
作者：
Ravanbakhsh, A. [1 ]
Tavoosi, M. [2 ]
Karimzadeh, F. [1 ]
机构：
[1] Isfahan Univ Technol, Nanotechnol & Adv Mat Inst, Dept Mat Engn, Esfahan 8415683111, Iran
[2] Malek Ashtar Univ Technol, Dept Mat Engn, Shahin Shahr, Isfahan, Iran
来源：
INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES | 2015年 / 22卷 / 03期
关键词：
Amorphous-nanocrystalline phase; Al-base alloys; Mechanical alloying; Crystallization kinetic; CRYSTALLIZATION; FE; EVOLUTION; KINETICS; POWDERS; PHASES; GLASS; TI;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, the formation and characterization of amorphous-nanocrystalline phases in Al80Fe10Ti5M3B2 (M=Cr, Ni and Nb) powder mixtures by the means of mechanical alloying (MA) have been investigated. The milled samples are characterized using X-ray diffraction (XRD), differential scanning calorimetry (DSC) and transmission electron microscopy (TEM). Mechanical alloying of these alloying systems shows that amorphous phase can be formed only in Al80Fe10Ti5Ni3B2 powder mixture and the final products in other systems are combination of amorphous and nanocrystalline phases. The produced amorphous phase in different alloying systems, exhibits one-stage crystallization on on heating (atat temperature up than temperature higher than 800 degrees C) and the crystallization's activation energy is more than 240 +/- 20 kJ/mol. The crystallization products (Al13Fe4) and mechanism (polymorphism) of amorphous phase in these three systems are the same.
引用
收藏
页码：307 / 312
页数：6
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