Non-Destructive Characterization of Cold Rolled Low-Carbon Steels

Cold rolled steels are widely used as basic materials in wide range of end applications such as automobiles, electrical appliances, and various types of containers. Plastic deformation affects the magnetic properties due to magnetic-elastic interactions between the magnetic domain walls and dislocations and residual stress fields. The aim of this study was to investigate the ability of the Magnetic Barkhausen Noise (MBN) method for non-destructive evaluation of the coldrolled low-C steels. The results showed that the MBN emission is sensitive to the severity of cold rolling however the measurement method needs improvement to differentiate the effects of microstructure and residual stre