کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1558802 | 1513810 | 2016 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermodynamic modeling of Al-Co-Cr, Al-Co-Ni, Co-Cr-Ni ternary systems towards a description for Al-Co-Cr-Ni
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
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چکیده انگلیسی
The phase relations and thermodynamic properties of the Al-Co-Cr, Al-Co-Ni, Co-Cr-Ni ternary alloys are investigated using first principles calculations based on DFT (density functional theory). Their thermodynamic descriptions are developed by means of the CALPHAD (calculations of phase diagrams) method using experimental and computational data from the present work and the literature. Emphasis is placed on modeling the A2, B2, fcc-γ, L12-γⲠand tetragonal-Ï phases in the temperature range of 1173-1623 K. Liquid, A2 and fcc-γ phases are modeled using substitutional solution descriptions. A partitioning model is then used for the γ/γⲠand A2/B2 phases to effectively describe the order-disorder transitions. The critically assessed thermodynamic descriptions describe all experimentally determined phase equilibria data well. A2/B2 transitions are also shown to agree well with previous experimental findings in the Al-Co-Cr ternary system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Calphad - Volume 52, March 2016, Pages 125-142
Journal: Calphad - Volume 52, March 2016, Pages 125-142
نویسندگان
Xuan L. Liu, Greta Lindwall, Thomas Gheno, Zi-Kui Liu,