Ageing Susceptibility of Continuously Annealed Low-Carbon-Steel Strips

The continuously annealed low-carbon-steel strips from industrial production showed an average aging index of about 30 N/mm². This increase in yield strength caused by the continuous-annealing process was strongly dependent on soaking temperature and time. Whilst optimization overaging parameters use a higher annealing would reduce ageing susceptibility strips, it considered unlikely that its magnitude could be reduced to comparable level batch-annealed one. Within limit low-carbon-strip specifications, there very little effect C content ageing. temper-rolled materials decreased with temper-rolling reductions, maximum achieved at reduction 1%. In this work, content, Al cycles, examined. SEM/EBSD technique developed characterize strain bands assess strips.