Numerical analysis of a transversal crack in a steel slab

Numerical analysis of a transversal crack in a steel slab

Článek recenzovaný mimo WoS a Scopus

Two original models have been developed and used in the investigation of a continuously cast low-carbon-steel slab. The first numerical 3D model of the temperature field of a concasting is capable of simulating the temperature field of a caster. Experimental research and data acquisition have to be conducted simultaneously with the numerical computation. The second model of dendritic segregation of elements assesses critical points of slabs from the viewpoint of their increased susceptibility to crack and fissure. In order to apply this model, it is necessary to analyze the heterogeneity of selected elements in characteristic places of the solidifying slab. The model, based on measurement results obtained by an electron micro-probe, generates distribution curves showing the dendritic segregation of the analyzed element, together with the partition coefficients of the elements between the liquid and solid states. The combination of both models enables the prediction of cracks and fissures in critical points of the continuously cast carbon-steel slab.

Two original models have been developed and used in the investigation of a continuously cast low-carbon-steel slab. The first numerical 3D model of the temperature field of a concasting is capable of simulating the temperature field of a caster. Experimental research and data acquisition have to be conducted simultaneously with the numerical computation. The second model of dendritic segregation of elements assesses critical points of slabs from the viewpoint of their increased susceptibility to crack and fissure. In order to apply this model, it is necessary to analyze the heterogeneity of selected elements in characteristic places of the solidifying slab. The model, based on measurement results obtained by an electron micro-probe, generates distribution curves showing the dendritic segregation of the analyzed element, together with the partition coefficients of the elements between the liquid and solid states. The combination of both models enables the prediction of cracks and fissures in critical points of the continuously cast carbon-steel slab.

Concasting, steel slab, cracks, temperature field, chemical heterogeneity, numerical models

Concasting, steel slab, cracks, temperature field, chemical heterogeneity, numerical models

KAVIČKA, F.; STRÁNSKÝ, K.; DOBROVSKÁ, J.; SEKANINA, B.; ŠTĚTINA, J.

2012

01.09.2011

Shanghai

1708-5284

World Journal of Engineering

8

P 541

Spojené království Velké Británie a Severního Irska

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