Paper Title:
Decomposition and Crystallization Induced by High-Energy Ball-Milling
  Abstract

Phase transformation induced by ball-milling was studied in this work. It was found that amorphous Fe90Zr10 ribbons undergo crystallization into BCC α-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.

  Info
Periodical
Solid State Phenomena (Volume 119)
Edited by
Chang Kyu Rhee
Pages
1-4
DOI
10.4028/www.scientific.net/SSP.119.1
Citation
Y. S. Kwon, J. S. Kim, C. E. Kim, "Decomposition and Crystallization Induced by High-Energy Ball-Milling", Solid State Phenomena, Vol. 119, pp. 1-4, 2007
Online since
January 2007
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