Open AccessAnálisis de la descomposición espinodal en aleaciones Fe-32 y 40 %at. Cr utilizando el método de campo de fases basado en las ecuaciones lineal y no lineal de Cahn y Hilliard
Author(s) -
Orlando SorianoVargas,
Vı́ctor M. López-Hirata,
Erika O. Ávila-Dávila,
Maribel L. SaucedoMuñoz,
N. Cayetano-Castro
Publication year - 2016
Publication title -
revista de metalurgia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.195
H-Index - 18
eISSN - 1988-4222
pISSN - 0034-8570
DOI - 10.3989/revmetalm.078
Subject(s) - physics , humanities , philosophy
Spinodal decomposition was studied during aging of Fe-Cr alloys by means of the numerical solution of the linear and nonlinear Cahn-Hilliard differential partial equations using the explicit finite difference method. Results of the numerical simulation permitted to describe appropriately the mechanism, morphology and kinetics of phase decomposition during the isothermal aging of these alloys. The growth kinetics of phase decomposition was observed to occur very slowly during the early stages of aging and it increased considerably as the aging progressed. The nonlinear equation was observed to be more suitable for describing the early stages of spinodal decomposition than the linear one