Aydin, KemalHidiroglu, MehtapKahraman, Nizamettin2024-09-292024-09-2920220972-28150975-1645https://doi.org/10.1007/s12666-021-02482-5https://hdl.handle.net/20.500.14619/4218Automotive industry in recent years, has gained great importance. In line with this, DP600 and DP800 dual-phase steels and the electrical resistance spot welding method were used in the study. During the experimental trials, different welding currents (6, 7, and 8 kA) were selected and all other welding parameters were kept constant. The effects of the welding parameters on microstructure, hardness, tensile-shear, and cross-tensile strength were analyzed. In the phase measurements, 27.06-29.97% martensite and 70.73-73.85% ferrite phases were found. When the hardness values in the HAZ regions were examined, it was seen that the highest hardness values were 356 +/- 5 HV in the DP600 and 451 +/- 5 HV in the DP800 with a current intensity of 6 kA. Consequently, it was determined that tensile-shear and cross-tensile strengths had increased in parallel with the increase in the welding current and the highest values were determined as 8 kA-15.91 kN in tensile shear and 8 kA-4.91 kN in cross-tensile strength.eninfo:eu-repo/semantics/closedAccessResistance spot weldingDP600DP800Dual-phase steelArticle10.1007/s12666-021-02482-52-s2.0-8512306963912915Q2127975WOS:000744819500001Q3