Decomposition and crystallization induced by high-energy ball-milling

被引：2
|
作者：
Kwon, Young-Soon [1 ]
Kim, Ji-Soon [1 ]
Kim, Cheol-Eeh [1 ]
机构：
[1] Univ Ulsan, Sch Mat Sci & Engn, Res Ctr Machine Parts & Mat Proc, Namgu Mugeo 2 Dong, Ulsan 680749, South Korea
来源：
NANOCOMPOSITES AND NANOPOROUS MATERIALS | 2007年 / 119卷
关键词：
ball-milling; amorphous materials; crystallization;
D O I：
10.4028/www.scientific.net/SSP.119.1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Phase transformation induced by ball-milling was studied in this work. It was found that amorphous Fe90Zr10 ribbons undergo crystallization into BCC alpha-Fe(Zr) under milling in an AGO-2 mill. The decomposition degree of the amorphous phase increased with increasing milling time and intensity. Analyses of samples milled at different speeds suggested that the observed crystallization is a deformation-induced process rather than a thermally induced one. In addition, the decomposition behavior of a FeSn intermetallic under ball-milling was carefully studied. Upon milling a large amount of the FeSn intermetallic decomposed into Fe5Sn3 and FeSn2, where the average grain size of the product phases stayed nearly constant with milling-time. It is suggested that the mechanically driven decomposition of FeSn results from local melting of powder particles due to high temperature pulses during ball collisions.
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页码：1 / +
页数：2
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