Shrinkage of round iron-carbon ingots during solidification and subsequent cooling

Abstract

The shrinkage of round iron-carbon ingots during solidification and subsequent cooling has been investigated with hot model experiments involving round ingots of 50 kg of steel. Three motor driven sensors made it possible to measure the shrinkage without deformation of the shell starting a few seconds after casting. The temperature distribution was computed with a thermal model. Thereafter, a mechanical model was applied to compute the shrinkage finding satisfactory agreement between the measured and computed shrinkage-time curves. Data are given on the effect of carbon content on the shrinkage of steel and it was confirmed that there is a shrinkage peak at about 0.1 mass% carbon.