| Issue |
Metall. Res. Technol.
Volume 119, Number 2, 2022
|
|
|---|---|---|
| Article Number | 209 | |
| Number of page(s) | 9 | |
| DOI | https://doi.org/10.1051/metal/2022021 | |
| Published online | 11 March 2022 | |
Regular Article
Growth mechanism of Al-Ti-O inclusions in steelmaking process
1
Shougang Group Co., LTD. Research Institute of Technology, Beijing 100043, China
2
Beijing Engineering Research Center of Energy Steel, Beijing 100043, China
3
Department of Materials Engineering, KU Leuven, 3001 Heverlee, Belgium
* e-mail: churensheng@163.com
Received:
28
September
2021
Accepted:
14
February
2022
In the present work, the formation and growth of Al-Ti-O complex inclusions in the steel after SiMn and Ti deoxidation is systematically investigated. The evolution with time of the size, composition and morphology of the Al-Ti-O complex inclusions were studied. After adding 70TiFe alloy, the inclusion composition changed from Si-Mn-Al to Ti-Al-O-N. The growth of the inclusions after a deoxidation time of 30 s is mainly controlled by turbulent collisions. The three-dimensional morphology and shape factor of the inclusions is determined to research the growth pattern of Al-Ti inclusions.
Key words: growth mechanism / inclusion / steelmaking process / evolution / three-dimensional morphology
© EDP Sciences, 2022
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