Особливості структуро- та фазоутворень у зварних з’єднаннях високомарганцевої сталі Fe-28Mn-11Al-1.2C, отриманих за допомогою присадного дроту Св-08Г2С-О

To determine the possibility of using industrial solutions for welding steels of the Fe-Mn-Al-C system, welding of 8 mm thick plates of high-manganese light steel Fe-28Mn-11Al-1.2C was carried out with filler wire of the Sv-08G2S-O brand with preheating. The microstructure of the obtained joint was studied. Due to experimental studies, it was shown that two zones are formed in the weld metal zone, which differ in chemical composition. The Analysis of microhardness in different zones of the welded joint showed that this characteristic has the lowest values in the weld zone and in the fusion zone, where they have close values of the order of 300-360 HV, the overheating zone is characterized by a gradual increase in microhardness from 320 to 486 HV.