In this work we investigated the kinetics of formation of gamma-Ni20Zn80 al
loy using nanocrystalline nickel obtained via mechanical milling. The alloy
was prepared by a thermo-mechanical process developed in our laboratory. T
hrough a systematic study, considering the variation of alloying temperatur
e and the crystallite size, we have quantified the relationships between th
e reaction rate and these parameters. (C) 1999 Published by Elsevier Scienc
e Ltd. All rights reserved.