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Investigation of Genesis of Internal Subsurface Crack in Continuous Cast Slabs and Finding Remedial Measures

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Abstract

Internal subsurface cracks in continuously cast slabs can lead to catastrophic failure of the material when it is subjected to further rolling or shaping. The interplay of multiple factors contributes to the formation of these cracks, making it occasionally challenging to accurately assess slab quality based solely on surface appearance. This paper presents an in-depth exploration of the internal quality of slabs, that aimed to identify the critical parameters responsible for initiating and propagating these cracks. The investigation employs a range of methodologies, including macro- and micro-metallographic analysis, thermo-mechanical simulations, that aid in characterizing defects and understanding material vulnerability. To prevent such failures in cast products, the study also proposes optimized operational parameters.

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Authors and Affiliations

  1. Research and Development Centre for Iron and Steel, Steel Authority of India Ltd, Ranchi, India

    Snehangshu Roy, Rajeev Kumar Singh, Anjana Deva & Kiran Kumar Keshari

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  1. Snehangshu Roy
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  2. Rajeev Kumar Singh
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  3. Anjana Deva
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  4. Kiran Kumar Keshari
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Correspondence to Snehangshu Roy.

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Roy, S., Singh, R.K., Deva, A. et al. Investigation of Genesis of Internal Subsurface Crack in Continuous Cast Slabs and Finding Remedial Measures. J Fail. Anal. and Preven. 23, 2633–2639 (2023). https://doi.org/10.1007/s11668-023-01799-1

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  • DOI: https://doi.org/10.1007/s11668-023-01799-1

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