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Preliminary communication

Thermodynamic modeling of phase composition for Fe-Ca-Si-Al system

Ye. Makhambetov ; Chemical and metallurgical institute named after J.Abishev, Karaganda, Kazakhstane
N. Timirbayeva orcid id orcid.org/0000-0002-3240-104X ; Chemical and metallurgical institute named after J.Abishev, Karaganda, Kazakhstane
S. Baisanov ; Chemical and metallurgical institute named after J.Abishev, Karaganda, Kazakhstane
A. Baisanov ; Chemical and metallurgical institute named after J.Abishev, Karaganda, Kazakhstane
E. Shabanov ; Chemical and metallurgical institute named after J.Abishev, Karaganda, Kazakhstane


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Abstract

In this paper, theoretical studies on the construction of phase structure diagrams of the Fe-Ca-Si-Al system as modeling composition of alloy by Thermodynamic-diagram analysis (TDA) were carried out. TDA analysis allows predicting the optimal composition of alloys using phase structure diagrams of the multicomponent systems. TDA excludes complex mathematical apparatus. Also, TDA allows to obtaine data for the Fe-Ca-Si-Al system, a diagram of phase relationships, each elementary subsystem of which is independent. By analyzing the binary systems, the state diagram of Fe-Ca-Si-Al metal system was constructed, which simulates the final phase composition of the ferroalloy. The reliability of the effectiveness of these methods is confirmed by large-scale laboratory melting tests.

Keywords

ferroalloys; Fe-Ca-Si-Al system; thermodynamic-diagram analysis; phase composition; alkaline earth metals

Hrčak ID:

246105

URI

https://hrcak.srce.hr/246105

Publication date:

4.1.2021.

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