Analysis of phase decomposition in Al-Zn and Al-Zn-Cu alloys by phase field method

Victor M. Lopez-Hirata, Erika O. Avila-Davila, Maribel L. Saucedo-Muñoz, David Villegas-Cardenas, Arturo Ortiz-Mariscal

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

The application of phase field method, based on the Cahn-Hilliard equation, was investigated to simulate the early stages of phase decomposition during the isothermal aging of Al-Zn and Al-Zn-Cu alloys. The simulation results indicated that the start of phase decomposition, increase in modulation amplitude, took place during the aging of binary alloys at temperatures of 100-300 °C for times up to 50 h, while the start of phase decomposition occurred during the aging of ternary alloys at temperatures of 400-550 °C for times equal to or longer than 3600 s. This analysis also showed that the morphology of the decomposed phases is irregular and interconnected in both of the aged alloys. Likewise, the equilibrium composition of the decomposed phases for both alloys was in good agreement with the predicted values in the equilibrium phase diagrams.

Idioma originalInglés
Título de la publicación alojadaPTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
EditoresLong-Qing Chen, Matthias Militzer, Gianluigi Botton, James Howe, Chadwick Sinclair, Hatem Zurob
EditorialInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
Páginas313-320
Número de páginas8
ISBN (versión digital)9780692437360
EstadoPublicada - 2015
EventoInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 - Whistler, Canadá
Duración: 28 jun. 20153 jul. 2015

Serie de la publicación

NombrePTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015

Conferencia

ConferenciaInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015
País/TerritorioCanadá
CiudadWhistler
Período28/06/153/07/15

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