A kinetic study on the nucleation and growth of the Al8FeMnSi2 intermetallic compound for aluminum scrap purification

Flores-V., A.; Sukiennik, M.; Castillejos-E., A.H.; Acosta-G., F.A.; Escobedo-B., J.C.

doi:10.1016/s0966-9795(97)00073-3

Cited by 45 publications

(21 citation statements)

References 4 publications

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“…Likewise, Flores et al [17] and Onderka et al [18] looked to refine aluminum alloys by precipitating a compound that was defined either as Al 8 FeMnSi 2 [17] or Al 11.8 FeMn 1.6 Si 1.6 , [18] the structures of which were, unfortunately, not investigated. However, in a parallel study on sintering quaternary alloys with 14.6 wt pct Fe, 14.3 wt pct Mn, and 14.7 wt pct Si, Toscano et al [19] only found the cubic alpha-AlMnSi and the hexagonal beta-AlMnSi phases.…”

Section: Checking For Additions and Impurities In Castmentioning

confidence: 99%

Thermodynamic Assessment of the Aluminum Corner of the Al-Fe-Mn-Si System

Lacaze

Eleno

Sundman

2010

Metall Mater Trans A

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A new assessment of the aluminum corner of the quaternary Al-Fe-Mn-Si system has been made that extends beyond the COST-507 database. This assessment makes use of a recent, improved description of the ternary Al-Fe-Si system. In the present work, modeling of the Al-rich corner of the quaternary Al-Fe-Mn-Si system has been carried out by introducing Fe solubility into the so-called alpha-AlMnSi and beta-AlMnSi phases of the Al-Mn-Si system. A critical review of the data available on the quaternary system is presented and used for the extension of the description of these ternary phases into the quaternary Al-Fe-Mn-Si.

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Section: Checking For Additions and Impurities In Castmentioning

confidence: 99%

Thermodynamic Assessment of the Aluminum Corner of the Al-Fe-Mn-Si System

Lacaze

Eleno

Sundman

2010

Metall Mater Trans A

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“…The value of K p captures the effects of particle size and the volume of the bath, so equation (15) The order of reaction n can be obtained from experimental results through a linear graph of ln (dC mg /dt) vs. ln (C Mg ). The works conducted by (Flores et al, 1998) and (Escobedo et al, 2003) showed that the value of n is close to 1. The values of K p for every temperature are directly obtained from the y-intercept of the straight line.…”

Section: Kinetic Studymentioning

confidence: 91%

New Approaches to Reaction Kinetics during Molten Aluminum Refining Using Electron Backscatter Diffraction (EBSD)

Flores¹,

Torres²

2011

Aluminium Alloys, Theory and Applications

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“…Using the equilibrium constant for the reaction leading to the formation of the quarternary phase Al 8 FeMnSi 2 , Flores-Valdes et al [33] derived the Gibbs energy of formation for this quarternary phase. On the basis of energy-dispersive X-ray (EDX) microprobe analysis of the precipitated solid phases, Onderka et al [34] found the existence of another quarternary phase Al 11.8 FeMn 1.6 Si 1.6 .…”

Section: The Al -Fe -Mn -Si Systemmentioning

confidence: 99%

Thermodynamic description of the Al–Fe–Mg–Mn–Si system and investigation of microstructure and microsegregation during directional solidification of an Al–Fe–Mg–Mn–Si alloy

Du¹,

Chang²,

Liu³

et al. 2005

MEKU

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The thermodynamic database for the Al -Fe -Mg -Mn -Si system is developed based on the constituent binary, ternary, and quarternary systems. The computed phase diagrams agree well with the experimental data. The obtained database is used to describe the solidification behavior of Al 356.1 (91.95Al -0.46Fe -0.3Mg -0.32Mn -6.97Si, in wt.%) and Al 356.2 (92.77Al -0.08Fe -0.35Mg -6.8Si, in wt.%) under equilibrium and Gulliver -Scheil non-equilibrium conditions. The reliability of the established thermodynamic database is also verified by the good agreement between calculation and experiment for both equilibrium and Gulliver -Scheil non-equilibrium solidifications. Microstructure and microsegregation of the directionally solidified Al 356.1 alloy are investigated with a growth rate of 0.04445 cm s -1 and a temperature gradient of 45 K cm -1 . Fractions of solids formed are measured by using quantitative image analysis of back-scattered electron, and solute redistribution in the primary (Al) is determined by means of an area scan approach with a total of 2400 electron probe microanalysis point counts. A micromodel, which includes solid-state diffusion, secondary dendrite arm coarsening, and dendrite tip and eutectic undercooling, is coupled with a multicomponent phase diagram calculation engine (PanEngine) to predict the microstructure and microsegregation of the solidified alloy. Quantitative agreement of the model prediction with the experiment is obtained for concentration distributions in the primary (Al), the types and amounts of phases formed, and the solidification path.

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A kinetic study on the nucleation and growth of the Al8FeMnSi2 intermetallic compound for aluminum scrap purification

Cited by 45 publications

References 4 publications

Thermodynamic Assessment of the Aluminum Corner of the Al-Fe-Mn-Si System

Thermodynamic Assessment of the Aluminum Corner of the Al-Fe-Mn-Si System

New Approaches to Reaction Kinetics during Molten Aluminum Refining Using Electron Backscatter Diffraction (EBSD)

Thermodynamic description of the Al–Fe–Mg–Mn–Si system and investigation of microstructure and microsegregation during directional solidification of an Al–Fe–Mg–Mn–Si alloy

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