In this study, two twinning induced plasticity (TWIP) steels with different chemical compositions were produced by casting-hot rolling-cold rolling processes. A total of four groups of samples were formed by obtaining cold-rolled and heat-treated samples giving optimum mechanical properties. Welding parameters of resistance spot welding (RSW) of all samples were determined, and weldability at different welding current values was examined. Button shapes, microstructures, microhardness, and tensile shearing tests of welded joints were investigated. In addition, scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analyses of broken samples were examined as a result of tensile testing. It has been concluded that non-heat-treated samples have higher tensile strength than heat-treated samples. In heat-treated steels; a marked increase in ductility was observed. It has been observed that RSWs of non-heat-treated steels have higher tensile load bearing capacity (TLBC) value.

在这项研究中，通过铸造-热轧-冷轧工艺生产了两种化学成分不同的孪生感应塑性（TWIP）钢。通过获得具有最佳机械性能的冷轧和热处理样品，总共形成了四组样品。确定所有样品的电阻点焊（RSW）的焊接参数，并检查不同焊接电流值下的可焊性。研究了焊接接头的纽扣形状，显微组织，显微硬度和拉伸剪切试验。另外，作为拉伸试验的结果，检查了破裂样品的扫描电子显微镜（SEM）和能量色散X射线（EDX）分析。已经得出结论，未热处理的样品具有比热处理的样品更高的拉伸强度。在热处理钢中；观察到延展性显着增加。已经观察到，非热处理钢的RSW具有更高的拉伸承载能力（TLBC）值。