Influence of chemical composition and structure on the properties of overlay welded structural steel
AbstractIn presented work the structure and properties of overlay welded structural grade 45 steel by using arc weld-ing method under the coating of the flux was investigated.Drills grinding wastes of grade P6M5 steel pow-der, chromium and graphite industrial production powder were used for powder electrodes filler. The structure and properties of the layers was investigated by using metal-lographic, roentgen-structure methods, measurements of hardness. Chemical composition of overlay welded layer was obtained by spectral analysis. Wear investigations of overlay welded punches were performed by using experi-mental stamp.The overlay welded punches in accordance with wear testing results is higher twice than of punches manu-factured from grade XBГ steel.