Recrystallization model for controlling mechanical properties of batch-annealed cold-rolled low-carbon aluminium-killed steel sheets

Abstract

The mechanical performance of batch-annealed cold-rolled aluminium-killed steel sheets depends greatly on the composition of the steel and on the thermomechanical parameters of the process. The role of carbon, aluminium, and nitrogen contents, as well as the coiling temperature, the cold-reduction percentage, and the thermal characteristics of the batch-annealing treatment, are reviewed in the light of new experimental results. A model is proposed, explaining the various effects of the processing parameters and giving a consistent interpretation of the results, which should prove valuable in predicting the quality of a sheet.

MST/384