Nano-amorphous (FeAl)1-xZrx alloys prepared by mechanical alloying

被引：14
|
作者：
Cheng, Xiaoyin
Ouyang, Yifang [1 ]
Shi, Hongwei
Zhong, Xiaping
Du, Yong
Tao, Xiaoming
机构：
[1] Guangxi Univ, Dept Phys, Nanning 530004, Peoples R China
[2] Hong Kong Polytech Univ, Inst Textiles & Clothing, Hong Kong, Hong Kong, Peoples R China
[3] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 421卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Fe-Al-Zr alloy; mechanical alloying; amorphous; activation energy for crystallization;
D O I：
10.1016/j.jallcom.2005.11.029
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Nano-amorphous (FeAl)(1-x)Zr(x) (x=20,33.3) alloys have been prepared by mechanical alloying. The microstructure, morphology and thermal stability of as-milled powders were analyzed by XRD, TEM and DTA, respectively. The size of milled powders was smaller than 50 nm. The thermal stability of as-milled powders decreased with increment of Zr. The products of crystallization for milled powders annealed at temperature over the crystallization temperature were also investigated. The effective activation energies for crystallization are evaluated according Kissinger's plot. The composition range of amorphous (FeAl)(1-x)Zr(x) was predicted from Miedema's theory and a geometric model. (c) 2005 Elsevier B.V. All rights reserved.
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页码：314 / 318
页数：5
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