THERMODYNAMIC STUDY OF BINARY ALLOY SYSTEM (Co–Cr) USING CALPHAD METHOD

Waseem Ullah Shah, Syed Mehmood Shah, Matiullah Khan, Dil Faraz Khan, Athanasios G. Mamalis and Haiqing Yin
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Waseem Ullah Shah: Department of Physics, University of Science and Technology Bannu, Bannu 28100, Pakistan
Syed Mehmood Shah: Department of Physics, University of Science and Technology Bannu, Bannu 28100, Pakistan
Matiullah Khan: #x2020;Department of Physics, Kohat University of Science and Technology, Kohat 26000, Pakistan
Dil Faraz Khan: Department of Physics, University of Science and Technology Bannu, Bannu 28100, Pakistan
Athanasios G. Mamalis: #x2021;Project Center for Nanotechnology and Advanced Engineering (PC-NAE), NCSR “Demokritos”, Athens, Greece
Haiqing Yin: #xA7;School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China

Surface Review and Letters (SRL), 2018, vol. 25, issue 02, 1-9

Abstract: This paper reports the thermodynamic analysis of (Co–Cr) system using THERMO-calc package (basis for CALPHAD) and PBIN database. Calculations involve binary phase diagram, Gibb’s energy curve and activity curve at three different elevated temperatures 2125K, 2150K and 2175K. Induced miscibility gap is observed at particular concentration. Binary phase diagram shows variation in phases in prescribed alloy with increasing temperature and mole fraction concentration of Co. The total Gibbs energy decreases with increasing temperature showing the stability of Co–Cr system. Activity showed thorough fluctuation resulting in negative deviation from Raoult’s law ideal curve.

Keywords: Calphad; Co–Cr alloy; thermodynamic calculations (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S0218625X1850049X

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