Interdiffusion in Ternary Magnesium Solid Solutions of Aluminum and Zinc

Kammerer, Catherine; Kulkarni, Nagraj; Warmack, Bruce; Sohn, Yong Ho

doi:10.1007/s11669-015-0438-7

Cited by 14 publications

(24 citation statements)

References 35 publications

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“…In addition, the raw experimental EPMA profiles measured by Kammerer et al [15], [18] in the Mg-Al, Mg-Zn and Mg-Al-Zn systems were used for the optimization procedure. They were firstly represented by a mathematical superposition of error functions [22], denominated Error Function Expansion (ERFEX), according to:…”

Section: Interdiffusion Coefficientmentioning

confidence: 99%

“…9, together with the experimental data. Figure 9 annealed at 723K for 5 hours), along with the raw EPMA experimental data [18].…”

Section: Concentration Profiles Of Diffusion Couplesmentioning

confidence: 99%

“…Concentration profiles calculated from the optimized parameters and experimental values[18] in hcp Mg-Al-Zn alloys. (a) Couple I annealed at 673K for 8 hours, (b) Couple II annealed at 723K for 5 hours, (c) Couple IV annealed at 673K for 24 hours, (d) Couple I annealed at 723K for 4 hours.…”

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confidence: 99%

“…a) and (b) depict the diffusion paths calculated for the optimized parameters for various ternary diffusion couples annealed at 673K and 723K respectively, which are compared with corresponding experimental data[18]. Note that the diffusion paths are expressed to be S-shaped curves.…”

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confidence: 99%

“…Comparison between the calculated diffusion paths and the available experimental data[18] (a) at 673K; (b) at 723K. The solid lines stand for the predictions with the optimized parameters.…”

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confidence: 99%

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Computational study of atomic mobility in hcp Mg–Al–Zn ternary alloys

Wang

et al. 2016

Calphad

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The experimental data in the literature for the hcp phase of the Mg-Al-Zn ternary system have been critically reviewed. Based on the concentration profiles from the literature, the diffusion coefficients have been re-extracted using the Hall method for the impurity diffusion, and the Sauer-Freise and the Whittle-Green strategies for interdiffusion coefficients in binary and ternary systems, respectively. Moreover, extra interdiffusion coefficients were obtained from the "Darken-type" couples, which present relative maxima or/and minima at the concentration profiles. This information was assessed to obtain an atomic mobility database, by means of DICTRA software in conjunction with the CALPHAD thermodynamic description that is able to reproduce the diffusion couple experiments. Comprehensive comparisons between the calculated results and experimental values show an excellent agreement not only for the diffusion coefficient data, but also for the concentration profiles and the diffusion paths.

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Section: Interdiffusion Coefficientmentioning

confidence: 99%

“…9, together with the experimental data. Figure 9 annealed at 723K for 5 hours), along with the raw EPMA experimental data [18].…”

Section: Concentration Profiles Of Diffusion Couplesmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%