Small Angle X-Ray Critical Scattering in an Al&amp;ndash;Zn Alloy with the Critical Composition

Terauchi, Hikaru; Sakamoto, Noriaki; Osamura, Kōzō; Murakami, Yôtarô

doi:10.2320/matertrans1960.16.379

Cited by 17 publications

(1 citation statement)

References 11 publications

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“…liquidus [3,[5][6][7][8][9][10], solidus [3,4,6,[11][12][13][14][15] and solvus [15][16][17][18][19][20]. The phase diagram also includes eutectic and monotectoid reactions at 381±1˚C or 277±1˚C [5,6,10,17,21], and a miscibility gap of the fcc-Al phase exists below the critical temperature of 351˚C [3,15,17,[22][23][24][25][26]. The calorimetrically determined enthalpy of mixing of liquid phase (Fig.…”

Section: Thermodynamic Assessmentmentioning

confidence: 99%

Thermodynamic Assessment and Determination of Spinodal Lines for Al-Zn Binary System

Kogo

Hirosawa

2014

MSF

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Calphad type thermodynamic assessment of Al-Zn binary system was performed to calculate the metastable phase diagram including not only miscibility gap but also spinodal lines. The Gibbs free energy for liquid, fcc and hcp phases was evaluated by taking into account available experimental data, and most of them were satisfactorily reproduced by our thermodynamic descriptions. Furthermore, the Gibbs free energy for GP zones was also expressed by combining the chemical energy for solid solution of fcc-Al with appropriate elastic strain energy, in good agreement with experimentally reported solubility limits. Therefore, the spinodal lines derived from the differential of the Gibbs free energy could be also reasonably estimated, although those are quite difficult to be measured experimentally.

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Section: Thermodynamic Assessmentmentioning

confidence: 99%

Thermodynamic Assessment and Determination of Spinodal Lines for Al-Zn Binary System

Kogo

Hirosawa

2014

MSF

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Vorstadien der Entmischung in Alkaliboratglasschmelzen

Würz

Chan

Döpkens

1983

Ber Bunsenges Phys Chem

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Influence of the quenched‐in state on the decomposition kinetics of Al‐21 at.% ZnX at.% Mn Alloys

Wendrock

Major²,

Löffler

et al. 1988

Cryst. Res. Technol.

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The structure changes proceeding in a series of Al-21 at.% Zn-X at../, A h alloys ( X = 0, 0.13, 0.32, 0.6, and 2.0) were investigated during ageing a t 80 "C by X-ray (diffraction line analysis as well as small-angle scattering) and TEM examinations. The main results are the following. (i) Mn additions of 0.6 at.% rise the boundary of the one phase region ( T p p . ) for about 50 K. (ii) Sie beschleunigen die lamellare Entmischung, verringern aber wesentlich die niittlere GroBe der Guinier-Preston-(GP-)Zonen. Werden die Proben anstelle von T, = 470 "C > T p g von T , = Trhn + 15 K < Tpg ( T r h n ist die obere Grenztemperatur fur das Einsetzen der schnellen homogenen Bildung von GP-Zonen), so ist die lamellare Entmischung bedeutend beschleunigt, aber die GroBe der GP-Zonen zwischen den Lamellen verringert.

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Small Angle X-Ray Critical Scattering in an Al–Zn Alloy with the Critical Composition

Cited by 17 publications

References 11 publications

Thermodynamic Assessment and Determination of Spinodal Lines for Al-Zn Binary System

Thermodynamic Assessment and Determination of Spinodal Lines for Al-Zn Binary System

Vorstadien der Entmischung in Alkaliboratglasschmelzen

Influence of the quenched‐in state on the decomposition kinetics of Al‐21 at.% ZnX at.% Mn Alloys

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