TY - GEN
T1 - Precipitation simulation of FCC iron precipitates in Cu-Fe alloys
AU - Del Carmen Gutierrez-Mendez, Ma
AU - Avila-Davila, Erika O.
AU - Melo-Maximo, Dulce V.
AU - Saucedo-Muñoz, Maribel L.
AU - Lopez-Hirata, Victor M.
PY - 2007
Y1 - 2007
N2 - This study shows the numerical simulation of the fcc-Fe precipitation in Cu-rich Cu-Fe alloys after aging at temperatures of 723, 773 and 823 K for different times. The numerical simulation was based on the solution of the non-linear Cahn Hilliard equation by the finite difference method. The results of the microstructural simulation indicated that the formation of fcc-Fe precipitates occurred by the nucleation and growth mechanism. The morphology of Fe precipitates was a spherical shape. The precipitation kinetics increased as the aging time and temperature increased. The coarsening of precipitates followed the Lifshitz-Slyozov-Wagner theory for diffusion-controlled coarsening. In general, the computer simulated results of the fcc-Fe precipitation in the Cu-rich matrix showed a good agreement with the experimental results obtained by the field ion microscope analysis for the same composition alloy after aging at the same conditions.
AB - This study shows the numerical simulation of the fcc-Fe precipitation in Cu-rich Cu-Fe alloys after aging at temperatures of 723, 773 and 823 K for different times. The numerical simulation was based on the solution of the non-linear Cahn Hilliard equation by the finite difference method. The results of the microstructural simulation indicated that the formation of fcc-Fe precipitates occurred by the nucleation and growth mechanism. The morphology of Fe precipitates was a spherical shape. The precipitation kinetics increased as the aging time and temperature increased. The coarsening of precipitates followed the Lifshitz-Slyozov-Wagner theory for diffusion-controlled coarsening. In general, the computer simulated results of the fcc-Fe precipitation in the Cu-rich matrix showed a good agreement with the experimental results obtained by the field ion microscope analysis for the same composition alloy after aging at the same conditions.
KW - Cu-Fe alloys
KW - Numerical simulation
KW - Precipitation
UR - http://www.scopus.com/inward/record.url?scp=40749091653&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:40749091653
SN - 9780873396790
T3 - TMS Annual Meeting
SP - 57
EP - 64
BT - Computational Thermodynamics and Phase Transformations 2007 - Proceedings of Symposium held during the 2007 TMS Annual Meeting
T2 - 136th TMS Annual Meeting, 2007
Y2 - 25 February 2007 through 1 March 2007
ER -