کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9803933 | 1516475 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A thermodynamic assessment of the Mg-Nd binary system using random solution and associate models for the liquid phase
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A thermodynamic assessment of the Mg-Nd binary system using random solution and associate models for the liquid phase A thermodynamic assessment of the Mg-Nd binary system using random solution and associate models for the liquid phase](/preview/png/9803933.png)
چکیده انگلیسی
A self-consistent thermodynamic description of the Mg-Nd system is presented. Given the asymmetric shape of the liquidus in the binary phase diagram, the associate model (which captures the chemical short range ordering (CSRO) tendency of the Mg and Nd atoms) for the liquid phase was tested and compared to the random solution model. The results of the optimization show that better agreement with the available experimental data is obtained using the associate model than with the random solution model. The enthalpy of mixing in the liquid is calculated on the basis of the two models for comparison with further experimental investigations. In addition, an experimental study using scanning electron microscopy (SEM) and X-ray diffraction (XRD) has been performed on two alloy compositions to confirm the metastability of the Mg12Nd phase, for which some confusion appears in the literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 392, Issues 1â2, 19 April 2005, Pages 253-262
Journal: Journal of Alloys and Compounds - Volume 392, Issues 1â2, 19 April 2005, Pages 253-262
نویسندگان
S. Gorsse, C.R. Hutchinson, B. Chevalier, J.-F. Nie,