On the Choice of the Geometrical Extrapolation Models for the Mg-Al-Sr System Based on Experimental Investigation
| Autor: | Mohammad A. Omari, Atif Alkhazali, M. Aljarrah |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Work (thermodynamics)
Ternary numeral system Materials science Component (thermodynamics) Mechanical Engineering Heat transfer model (HTM) Extrapolation Binary number Thermodynamics Condensed Matter Physics DSC Mechanics of Materials TA401-492 General Materials Science Symmetric/asymmetric model Geometric modeling Ternary operation Materials of engineering and construction. Mechanics of materials Phase diagram |
| Zdroj: | Materials Research, Vol 23, Iss 6 (2020) Materials Research, Volume: 23, Issue: 6, Article number: e20200284, Published: 20 NOV 2020 Materials Research v.23 n.6 2020 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
| ISSN: | 1516-1439 |
| Popis: | In the current work, solidification curves were deduced experimentally from Differential Scanning Calorimetric (DSC) using heat transfer model, then compare our experimental work with different extrapolation solidification curves models predicted based on thermodynamic properties of binary sub-systems. The motivation of this work is to better predict ternary thermodynamic properties for binary phase diagram and the error of predicting arises from misjudging the asymmetric component in the asymmetric geometric model, It was found that Kohler gives a better agreement than Muggianu (symmetric model). Tested alloys show that, choosing strontium (Sr) element as the asymmetric component in Mg-Al-Sr system gives the best prediction for solidification curves. In addition, the solidification curves calculated using Toop model for the ternary system (Al or Mg is asymmetric) shows the poorest fit solidification curves construed from DSC data. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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