Exploitation parameters of deformed high-strength steel assessed by the Barkhausen noise method

The elastic limit, yield point, strain hardening component, and strength coefficient of martensitic steel were determined after monotonic tensile loading.The monotonic tension test of 41Cr4 steel was conducted for selected values of deformation.The specimen was unloaded after each pre-strain.The parameters from destructive tests were compared with those from the Barkhausen noise (BN) method obtained.It turned out that the magnetic Barkhausen effect can be helpful in the diagnostics of structural steel components and devices.Linear relationships between the elastic limit/yield point and parameters coming from the rms voltage of Barkhausen noise envelope were found.