“…Due to the volume shrinkage in solidification process, the central shrinkage cavity of the thicker continuous casting slab tended to be more serious. [16,17] When the deformation of the continuous casting slab was not enough in rolling process, the central shrinkage cavity could not be effectively rolled together, thus reducing the tensile plasticity of the thick plate. The internal cracks in thick plate mainly referred to hydrogen-induced cracks.…”