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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 12/2021

30.07.2021

Mechanisms of Metal-Slag Separation Behavior in Thermite Reduction for Preparation of TiAl Alloy

verfasst von: Yulai Song, Zhihe Dou, Ting-an Zhang, Guocheng Wang

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 12/2021

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Abstract

Thermite reduction as one of the most promising methods for preparation of TiAl alloy, the metal-slag separation behavior in the whole process of chemical reaction, including both the alloy components and slags to be removed, is still ambiguous. In this paper, the two-step nucleation mechanism was applied to investigate the metal-slag separation behavior in the thermite reduction process for the preparation of TiAl alloy, which was confirmed by thermodynamic calculation based on density functional theory. Moreover, the component of products acquired from thermite reaction was characterized and analyzed by x-ray diffractometer, scanning electron microscope and transmission electron microscope, respectively. According to the results of the experiment and calculation, the formation and separation mechanism between alloy and slag in the process of preparing TiAl alloy via thermite reduction is visualized, which is universal in the whole metallurgical procedure involving redox and slag-making process.
Vorheriger Artikel Unified Elastic–Plastic Analytical Method for Estimating Notch Local Strains in Real Time under Multiaxial Irregular Loading
Nächster Artikel Microstructure Evolution of B4C/Al Interface: A First-Principle Study

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Metadaten
Titel
Mechanisms of Metal-Slag Separation Behavior in Thermite Reduction for Preparation of TiAl Alloy
verfasst von
Yulai Song
Zhihe Dou
Ting-an Zhang
Guocheng Wang
Publikationsdatum
30.07.2021
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 12/2021
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-021-06074-8

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