OCHODEK Vladislav VSB - Technical University

Evolution of Residual Stresses in the Steel Strip during DRECE Technology

Co-authors RUSZ Stanislav

Residual stresses are one of the important properties of materials, which can greatly limit its utility properties. Each manufacturing technology leaves in the material mark on different levels and distribution of residual stresses. Paper gives overview of possible methods for measuring residual stresses in steels during and after deformation structure strengthening mechanism. Are described in detail a method based on the Barkhausen noise, which allows you to the monitor development and redistribution of residual stresses during many cycles technological operations. The paper described the methodology certified non-destructive residual stresses measurement technique in carbon steel after extrusion of DRECE (Dual Rolling Equal Channel Extrusion).