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Neutron diffraction analysis of phase precipitation in solidification of hypereutectic Al-Si alloys with the addition of Cu and Mg

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1002/9781118359259.ch60
AuteurRechercher : 1; Rechercher :
Affiliation
  1. Conseil national de recherches du Canada. Centre canadien de faisceaux de neutrons du CNRC
FormatTexte, Article
ConférenceLight Metals 2012 - TMS 2012 Annual Meeting and Exhibition, 11 March 2012 through 15 March 2012, Orlando, FL
SujetAlloying additions; As cast microstructure; FactSage; Hypereutectic Al-Si alloys; Hypereutectic aluminum-silicon alloys; Industrial alloys; Key factors; Neutron diffraction analysis; Phase precipitations; Service properties; Si alloys; Solid phasis; Solid-phase; Solidification kinetics; Solidification process; Thermodynamic calculations; Aluminum; Aluminum alloys; Binary alloys; Exhibitions; Kinetics; Neutron diffraction; Precipitation (chemical); Silicon; Silicon alloys; Thermoanalysis; Solidification
Résumé
A good understanding of the kinetics of evolution of solid phases during solidification of hypereutectic aluminum alloys is a key factor in controlling the as-cast microstructure and, in turn, enhancing the service properties of industrial alloys. A study was performed to evaluate the solidification kinetics for two hypereutectic Al-19%Si alloys with the addition of 3%Cu and 3%Cu+1%Mg. This study included thermodynamic calculations of the solidification process using the FactSage™ 6.2 software package, as well as experimental thermal analysis, and neutron diffraction. The study revealed kinetics of solid Al, solid Si, Al 2CU, and Mg 2Si evolution, as well as an individual effect of Cu and Mg alloying additions on the solidification path of the Al-Si system.
Date de publication
Dans
  • TMS Light Metals (3 mai 2012) : 355–364.
Langueanglais
Publications évaluées par des pairsOui
Numéro NPARC21269565
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Identificateur de l’enregistrementaabf0615-8256-4d14-85f5-b38567b4c3d4
Enregistrement créé2013-12-12
Enregistrement modifié2020-04-21
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