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

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. [ABSTRACT FROM AUTHOR]