A MODEL FOR THE HOT DEFORMATION OF LOW-CARBON STEEL

The high-temperature deformation behaviour of low-carbon steel can be described by the superposition of work hardening and the combination o f dynamic recovery and recrystallization. This last mode of restoratio n takes place once a critical strain. which depends on the strain rate and the temperature at which the test is conducted, is surpassed. All owance is made for the grain size and the chemical composition of the steel in order to fit the experimental data. The model is employed to predict the separation forces recorded during the industrial productio n of low-carbon steel strip in a six-stand continuous mill.