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

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1002/9781118359259.ch60
AuthorSearch for: 1; Search for:
Affiliation
  1. National Research Council of Canada. NRC Canadian Neutron Beam Centre
FormatText, Article
ConferenceLight Metals 2012 - TMS 2012 Annual Meeting and Exhibition, 11 March 2012 through 15 March 2012, Orlando, FL
SubjectAlloying 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
Abstract
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.
Publication date
In
  • TMS Light Metals (3 May 2012): 355–364.
LanguageEnglish
Peer reviewedYes
NPARC number21269565
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Record identifieraabf0615-8256-4d14-85f5-b38567b4c3d4
Record created2013-12-12
Record modified2020-04-21
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