S. Abdelaziz, G. Megahed
In the context of increasing demand for high-quality steel, this study aimed to improve the cleanness of low carbon aluminum killed steel (LCAK) through controlling calcium (Ca) addition. A series of 14 heat trials were conducted over two sequences to identify the minimum Ca addition necessary to prevent submerged entry nozzle clogging and enhance steel cleanness. The methodology included metallographic microscopy and scanning electron microscopy/energy-dispersive X-ray (SEM/EDX) analysis to evaluate results. The findings revealed that reducing the Ca addition from 0.095 to 0.06 kg Ca per ton of steel effectively prevented nozzle clogging. Additionally, this reduction was shown to facilitate the conversion of alumina inclusions into globular calcium-aluminate and significantly decreased the formation of CaS inclusions from a range of 4-41% to 0.05-7.61%. These results indicate the potential for optimized Ca treatment in steelmaking processes to achieve cleaner steel with better quality characteristics.
@article{4002aad9-60bb-4f55-bfcc-9bf7aab0d498,
title={Control of Ca addition for improved clea},
author={S. Abdelaziz and G. Megahed},
year={2026},
language={en}
}TY - JOUR TI - Control of Ca addition for improved clea AU - S. Abdelaziz AU - G. Megahed PY - 2026 LA - en ER -
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