Refinement of the crystal structure π-Al9FeMg3Si5

Krendelsberger, R.; Rogl, P.; Leithe‐Jasper, Andreas; Simensen, Christian J.

doi:10.1016/s0925-8388(97)00275-2

Cited by 15 publications

(2 citation statements)

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“…By means of single-crystal automatic, the stoichiometry of the Al 9 FeMg 3 Si 5 phase was determined to Al 18 Fe 2 Mg 7 Si 10 by Krendelsberger et al [65] The thermodynamic description of the Al-Fe-Mg-Si quaternary system in the Al-rich corner has been successively performed by Daniel [66] and Du et al [67] However, the calculated liquid phase compositions of the invariant reactions by Daniel [66] show noticeable discrepancies from the experimental ones and the Al 9 FeMg 3 Si 5 phase stabilized at low temperature cannot be well described by both of the work. [66,67] Thus, the thermodynamic parameters of the quaternary Al 9 FeMg 3 Si 5 phase are slightly modified in the present work.…”

Section: 31mentioning

confidence: 99%

Thermodynamic Description of the Al-Fe-Mg-Ni-Si and Al-Cu-Fe-Mg-Ni Quinary Systems and Its Application to Solidification Simulation

Song

et al. 2015

J. Phase Equilib. Diffus.

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Based on the critical review of the available experimental phase equilibrium data for the constituent quaternary systems in the Al-Fe-Mg-Ni-Si and Al-Cu-Fe-Mg-Ni quinary systems, a set of self-consistent thermodynamic parameters for these systems has been obtained using the CALPHAD approach. In combination with the constituent binary, ternary and quaternary systems, the thermodynamic database for the quinary Al-Fe-Mg-Ni-Si and Al-Cu-Fe-Mg-Ni systems was developed. Comprehensive comparisons between the calculated and measured phase diagrams and invariant reactions showed that the experimental data were satisfactorily accounted for by the present thermodynamic description. The established database was used to describe the solidification behaviors of Al alloys 6063 (Al-0.39Si-0.20Fe-0.43Mg, in wt.%) and 2618 (Al-2.24Cu-1.42Mg-0.9Fe-0.9Ni, in wt.%) under Gulliver-Scheil non-equilibrium condition. The reliability of the present thermodynamic database was also verified by the good agreement between the Gulliver-Scheil calculation and experiment.

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Section: 31mentioning

confidence: 99%

Thermodynamic Description of the Al-Fe-Mg-Ni-Si and Al-Cu-Fe-Mg-Ni Quinary Systems and Its Application to Solidification Simulation

Song

et al. 2015

J. Phase Equilib. Diffus.

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“…On the basis of TA and chemical analysis, Gul'din and Dokukina [19] measured the solubility of Fe and Si in Al -Mg melts and the eutectic reaction temperature for L = (Al) + Mg 2 Si + Al 13 Fe 4 + Al 8 Mg 5 . The quarternary phase p (Al 16 Fe 2 Mg 6 Si 12 ) found by Phillips [18] was shown to have the composition Al 18 Fe 2 Mg 7 Si 10 by Krendelsberger et al [20] using single-crystal automatic four-circle counter data. Most recently, Daniel [15] has modeled this quarternary system.…”

Section: The Ternary Systemsmentioning

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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ChemInform Abstract: Refinement of the Crystal Structure π‐Al₉FeMg₃Si₅.

et al. 1998

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structure structure (solids and liquids) D 2000 -010Refinement of the Crystal Structure π-Al 9 FeMg 3 Si 5 .-A reinvestigation of the crystal structure of the quaternary so-called π-phase using modern single crystal automatic four circle counter technique indicates that the π-phase crystallizes in a unique structure type with the noncentrosymmetric hexagonal space group Pr6r2m (Z = 1). Whereas previous structure studies claim full atom order, the present refinement clearly indicates a partial ordering of the crystal structure with a random distribution of 0.94 Al + 0.06 Mg in the 6i-sites. The chemical formula as a result of the refinement Al 8.7 FeMg 3.3 Si 5 is in close agreement with the experimental composition Al 9 FeMg 3.5 Si 5 . -(KRENDELSBERGER, R.; ROGL, P.; LEITHE-JASPER, A.; SIMENSEN, C.

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Refinement of the crystal structure π-Al9FeMg3Si5

Cited by 15 publications

References 1 publication

Thermodynamic Description of the Al-Fe-Mg-Ni-Si and Al-Cu-Fe-Mg-Ni Quinary Systems and Its Application to Solidification Simulation

Thermodynamic Description of the Al-Fe-Mg-Ni-Si and Al-Cu-Fe-Mg-Ni Quinary Systems and Its Application to Solidification Simulation

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

ChemInform Abstract: Refinement of the Crystal Structure π‐Al₉FeMg₃Si₅.

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Refinement of the crystal structure π-Al9FeMg3Si5

Cited by 15 publications

References 1 publication

Thermodynamic Description of the Al-Fe-Mg-Ni-Si and Al-Cu-Fe-Mg-Ni Quinary Systems and Its Application to Solidification Simulation

Thermodynamic Description of the Al-Fe-Mg-Ni-Si and Al-Cu-Fe-Mg-Ni Quinary Systems and Its Application to Solidification Simulation

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

ChemInform Abstract: Refinement of the Crystal Structure π‐Al9FeMg3Si5.

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ChemInform Abstract: Refinement of the Crystal Structure π‐Al₉FeMg₃Si₅.