Journal ArticleDOI
Contribution to the experimental and thermodynamic assessment of the AlCaFeSi system—I. AlCaFe, AlCaSi, AlFeSi and CaFeSi systems
TLDR
In this paper, the enthalpy of the ternary compounds Si2Al2Ca, Si7Al8Fe5 and Si 2Al3Fe, as well as invariant temperatures in the Al-Ca-Si and Al-Fe-Si systems were derived from DTA measurements.Abstract:
The binary Al-Ca, Ca-Fe, Ca-Si systems and the ternary Al-Ca-Fe, Al -Fe-Si, Ca-Fe-Si systems were thermodynamically assessed. Experimental determination of the enthalpy of fusion of the ternary compounds Si2Al2Ca, Si7Al8Fe5 and Si2Al3Fe, as well as invariant temperatures in the Al-Ca-Si and Al-Fe-Si systems were derived from DTA measurements. A set of thermodynamic parameters consistent with the phase diagram, mainly in the Si-rich region, is obtained.read more
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Analysis of aluminium based alloys by calorimetry: quantitative analysis of reactions and reaction kinetics
TL;DR: Differential scanning calorimetry has been applied extensively to the analysis of light metals, especially Al-based alloys as discussed by the authors, and is used for analysis of solid state reactions, such as precipitation, homogenisation, devitrivication and recrystallisation.
Journal ArticleDOI
A thermodynamic description of the Al–Fe–Si system over the whole composition and temperature ranges via a hybrid approach of CALPHAD and key experiments
Yong Du,Julius C. Schuster,Zi Kui Liu,Rongxiang Hu,Philip Nash,Weihua Sun,Wei-Wei Zhang,Jiong Wang,Lijun Zhang,Chengying Tang,Zhijun Zhu,Shuhong Liu,Yifang Ouyang,Wenqing Zhang,Nataliya Krendelsberger +14 more
TL;DR: In this article, the inconsistency between the measured and computed enthalpies of formation via CALPHAD method for the ternary compounds is traced to the Fe-Si system in which there is a disagreement between the experimental enthalpy of formation and CALPAD type one.
Journal ArticleDOI
Thermodynamic assessment of the Al-Fe-Si system
Zi Kui Liu,Y. Austin Chang +1 more
TL;DR: In this article, the phase equilibria and thermodynamic properties of the ternary Al-Fe-Si system were analyzed and a complete thermodynamic description of the system was obtained.
Journal ArticleDOI
On the Reaction Scheme and Liquidus Surface in the Ternary System Al-Fe-Si
TL;DR: In this paper, the constitution of the ternary system Al-Fe-Si is reinvestigated over the entire composition range by X-ray diffraction (XRD), differential thermal analysis (DTA), and scanning electron microscopy/energy dispersive x-ray (SEM/EDX).
Journal ArticleDOI
Transient Inclusion Evolution During Modification of Alumina Inclusions by Calcium in Liquid Steel: Part I. Background, Experimental Techniques and Analysis Methods
Neerav Verma,Petrus Christiaan Pistorius,Richard J. Fruehan,Michael S. Potter,Minna Lind,Minna Lind,Scott R. Story +6 more
TL;DR: In this article, the transient evolution of inclusions after calcium treatment, testing the hypothesis that calcium sulfide may form as an intermediate reaction product, which can subsequently react with alumina to form modified calcium aluminates.
References
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Journal ArticleDOI
Algebraic Representation of Thermodynamic Properties and the Classification of Solutions
Otto Redlich,A. T. Kister +1 more
Journal ArticleDOI
SGTE data for pure elements
TL;DR: In this article, the authors present the data for the condensed phases of 78 elements as currently used by SGTE (Scientific Group Thermodata Europe) as a sound basis for the critical assessment of thermodynamic data, thereby, perhaps, limiting unnecessary duplication of effort.
Journal ArticleDOI
The Thermo-Calc databank system☆
TL;DR: Using the facilities of Thermo-Calc one can tabulate thermodynamic data, calculate the heat change of chemical reactions and their driving force, evaluate equilibria for chemical systems and phase transformations and calculate various types of multicomponent phase diagrams by an automatic mapping procedure.
Book
Alloy phase diagrams
TL;DR: In this article, an introductory source aimed at practicing engineers and material scientists, the text explains how to use phase diagrams, and more than 1,000 binary and 300 ternary diagrams included cover most commercial alloy systems; compositions are presented in weight percent.