TY - GEN
T1 - Microstructural evolution of phase decomposition Cu-Ni-Fe alloys
AU - Avila-Davila, E.
AU - Melo-Maximo, D.
AU - Vargas, O. Soriano
AU - Lopez-Hirata, V.
AU - Saucedo-Munoz, M.
AU - Dorantes-Rosales, H.
AU - Gonzalez-Velazquez, J.
PY - 2008
Y1 - 2008
N2 - The computer simulation of the microstructural evolution was carried out based on a solution of the nonlinear Cahn-Hilliard partial differential equation by the finite difference method in the isothermally-aged Cu-Ni-Fe alloy system. The calculated results were compared to those determined by atom-probe field ion microscope analyses of the solution treated and aged alloys. Both the numerically simulated and experimental results showed a good agreement for the growth kinetics and morphology of the decomposed phases in the aged Cu-46at.%Ni-4at.%Fe and Cu-48at.%Ni-8at.%Fe alloys. The growth kinetics was observed to be very slow during the early stages of aging. The morphology of decomposed phases consisted of an irregular shape with no preferential alignment for short aging times and a further aging caused the change of initial to cuboid shape of the decomposed Ni-Cu-Fe rich phase aligned in the elastically-softest crystallographic direction <100> of the Cu-Ni-Fe rich matrix.
AB - The computer simulation of the microstructural evolution was carried out based on a solution of the nonlinear Cahn-Hilliard partial differential equation by the finite difference method in the isothermally-aged Cu-Ni-Fe alloy system. The calculated results were compared to those determined by atom-probe field ion microscope analyses of the solution treated and aged alloys. Both the numerically simulated and experimental results showed a good agreement for the growth kinetics and morphology of the decomposed phases in the aged Cu-46at.%Ni-4at.%Fe and Cu-48at.%Ni-8at.%Fe alloys. The growth kinetics was observed to be very slow during the early stages of aging. The morphology of decomposed phases consisted of an irregular shape with no preferential alignment for short aging times and a further aging caused the change of initial to cuboid shape of the decomposed Ni-Cu-Fe rich phase aligned in the elastically-softest crystallographic direction <100> of the Cu-Ni-Fe rich matrix.
KW - Cu-Ni-Fe alloys
KW - Microstructural evolution
KW - Numerical Simulation
KW - Phase decomposition
UR - http://www.scopus.com/inward/record.url?scp=63749106217&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:63749106217
SN - 9781605606217
T3 - Materials Science and Technology Conference and Exhibition, MS and T'08
SP - 856
EP - 866
BT - Materials Science and Technology Conference and Exhibition MS and T'08
T2 - Materials Science and Technology Conference and Exhibition, MS and T'08
Y2 - 5 October 2008 through 9 October 2008
ER -