JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, 2024 (ESCI)
In this study, we focus on predicting factors such as temperature input and heat turbulence, which are considered to have a significant impact on the mechanical properties of the connection in welded joints, such as temperature input and heat turbulence, which may have different properties from the welding area. In the study, the flash butt welding method was preferred and holes were opened at regular intervals in the samples to be joined, and temperature values were measured using thermocouples and data loggers during the welding process. The microstructural differences occurring in the welding areas of the test pieces were examined using light microscopy and scanning electron microscopy (SEM). Microhardness measurements were also made to determine mechanical properties. Three-dimensional modeling was created using the finite element method (Ansys) under the same experimental conditions and compared with the experimental results. As a result of this comparison, it was seen that the findings were compatible with the actual results. For this reason, it is emphasized that the use of simulation programs is important to predict the properties of welded structures and possible problems.