The effect of welding current on nugget geometry, microstructure and mechanical properties of TWIP steels in resistance spot welding
作者： Fatih Hayat , Sadettin Şahin , Onur Cem Çölgeçen
DOI: 10.1007/S40194-021-01083-6
关键词:
摘要: 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 samples formed obtaining cold-rolled and heat-treated giving optimum mechanical properties. Welding parameters resistance spot welding (RSW) all determined, weldability at current values was examined. Button shapes, microstructures, microhardness, tensile shearing tests welded joints investigated. addition, scanning electron microscopy (SEM) energy dispersive X-ray (EDX) analyses broken examined as a result testing. It has been concluded that non-heat-treated have higher strength than samples. steels; marked increase in ductility observed. observed RSWs load bearing capacity (TLBC) value.
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