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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.43  No.4 (2002)  >  pp.641-645

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A Numerical Study on Composition Pattern Formation in Immiscible Alloys under Irradiation Condition

Yoshihisa Enomoto1) and Masataka Sawa1)
1) Department of Environmental Technology, Nagoya Institute of Technology

The kinetics of spontaneous composition pattern formation in a quenched alloys under irradiation is numerically studied by means of phenomenological Enrique-Bellon equation for the local concentration field. In the present model the irradiation effect is modeled as a ballistic mixing with an average distance of atomic relocation R and its frequency Γ. Several two-dimensional computer simulations show that the competitive mechanism between phase separation and irradiation-induced mixing might provide a novel way to stabilize and tune the steady-state nanostructures of phase separating materials in some region on (R, Γ) space.

irradiation, ballistic mixing, phase separation, spontaneous surface pattern formation, Enrique-Bellon model, nanostructures

Received: October 15, 2001
Accepted: December 10, 2001 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals



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