Amorphous and nano-crystalline structures of mechanically-alloyed Al-24.4%Fe(mole fraction) powder mixture

被引：0
|
作者：
Huang, B
Ishihara, KN
Shingu, HP
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China
[2] Kyoto Univ, Grad Sch Energy Sci, Kyoto 606, Japan
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 1999年 / 9卷 / 04期
关键词：
crystal and amorphous structure; mechanical alloying; Al-Fe alloy;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Elemental powders of Al-24.4 % Fe (mole fraction) alloy were mechanically-alloyed using a conventional type ball-milling. Not only Fe particles gradually disperse in Al matrix but also Al and Fe crystal grains are refined to the order of ten nanometers after ball-milling for 180 h. The amorphization starts at the early stage of ball milling and proceeds gradually. Complete amorphization is confirmed by ball-milling for 720 h. The amorphization of the powders after ball-milled for 180 h can be promoted by heating up to 673 K, which suggests a possibility of producing amorphous material by appropriate ball-milling and subsequent healing.
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页码：747 / 752
页数：6
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