Speaker
Description
This work is focused on the implementation of Barkhausen noise technique for monitoring of phase transformations in the austenitic steel after plastic deformation under the variety of loading regimes. The non-ferromagnetic austenite is transformed into the ferromagnetic martensite. The depth extent as well as the specific character of this transformation can be reliably monitored via Barkhausen noise emission. The work present the result of experimental studies focused on the rolling wear, shot peening as well as more complicated regimes of the load in the real long term conditions. This presentation demonstrates the significance of the mutual communication among the neighboring martensitic islands as well as the preferential straining of the parental matrix during some regimes of the load. Barkhausen noise can be therefore employed for very fast, reliable a non-destructive monitoring of the aforementioned processes.
