TY - GEN
T1 - Numerical simulation of phase decomposition during aging in Cu-Ni based alloys
AU - Avila-Davila, Erika O.
AU - Melo-Máximo, Dulce V.
AU - Soriano-Vargas, Orlando
AU - Saucedo-Muñoz, Maribel L.
AU - Lopez-Hirata, Victor M.
AU - Gonzalez-Velazquez, Jorge L.
PY - 2009
Y1 - 2009
N2 - The microstructure simulation of spinodal decomposition was carried out in the isothermally-aged Cu-70at.%Ni and Cu-46at.%Ni-4at.%Fe alloys using the phase field method. The numerical simulation was based on a solution of the Cahn-Hilliard nonlinear partial differential equation by the explicit finite difference method. A very slow growth kinetics of phase decomposition was observed to occur in the aged Cu-Ni alloys. The morphology of decomposed phases consists of an irregular shape with no preferential alignment in any crystallographic direction at the early stages of aging in all the aged alloys. In the case of the aged Cu-46at.%Ni-4at.%Fe alloy, a further aging caused the change of initial morphology to an equiaxial shape of the decomposed Ni-rich phase aligned in the elastically-softest crystallographic direction <100> of Cu-rich matrix.
AB - The microstructure simulation of spinodal decomposition was carried out in the isothermally-aged Cu-70at.%Ni and Cu-46at.%Ni-4at.%Fe alloys using the phase field method. The numerical simulation was based on a solution of the Cahn-Hilliard nonlinear partial differential equation by the explicit finite difference method. A very slow growth kinetics of phase decomposition was observed to occur in the aged Cu-Ni alloys. The morphology of decomposed phases consists of an irregular shape with no preferential alignment in any crystallographic direction at the early stages of aging in all the aged alloys. In the case of the aged Cu-46at.%Ni-4at.%Fe alloy, a further aging caused the change of initial morphology to an equiaxial shape of the decomposed Ni-rich phase aligned in the elastically-softest crystallographic direction <100> of Cu-rich matrix.
KW - Copper-nickel alloys
KW - Copper-nickel-iron alloys
KW - Microstructural evolution
KW - Numerical simulation
KW - Spinodal decomposition
UR - http://www.scopus.com/inward/record.url?scp=70349469722&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:70349469722
SN - 9780873397407
T3 - TMS Annual Meeting
SP - 339
EP - 346
BT - TMS 2009 - 138th Annual Meeting and Exhibition - Supplemental Proceedings
T2 - TMS 2009 - 138th Annual Meeting and Exhibition
Y2 - 15 February 2009 through 19 February 2009
ER -