@article{Svetlana Barannikova_Lev Zuev_Yulia Li_2018, title={PLASTIC FLOW HETEROGENEITY AND FAILURE OF BIMETAL MATERIAL}, volume={14}, url={https://geomatejournal.com/geomate/article/view/1591}, abstractNote={<p>The aim of this paper was to display the kinetics of Lüders band (LB) propagation of bimetallic<br>material on the yield plateau at the microscale level. The localization patterns of plastic deformation in the<br>process of uniaxial tension were obtained by the non-contact method of recording the fields of displacement<br>vectors. The microstructure of the interfaces with the user results of optical, atomic force and scanning<br>microscopy showed that in the direction of the pearlite steel to the austenitic form there are structural<br>components: the weakened zone of the ferrite layer; a hardened section of the ferrite layer dark-pickling layer<br>from the side of the austenitic steel. Plastic deformation of a bimetal began from the nucleation of the Lüders<br>band on the boundaries of the bimetal on stress raisers with higher hardness due to the diffusion effect. In the<br>main layer, the Lüders band was limited to a pair of fronts moving in opposite directions along the bimetal axis<br>with different velocities. The cladding layer did not suppress the formation of Lüders bands, led to an increase in<br>the propagation velocity of Lüders band fronts in the base layer.</p>}, number={43}, journal={GEOMATE Journal}, author={Svetlana Barannikova and Lev Zuev and Yulia Li}, year={2018}, month={Mar.}, pages={112–117} }