RT - Journal Article T1 - Experimental and Numerical Investigation of Microstructural Evolutions, Mechanical Properties and Fracture Mode of AISI 1075 Resistance Weld JF - JWSTI YR - 2016 JO - JWSTI VO - 1 IS - 1 UR - http://jwsti.iut.ac.ir/article-1-25-en.html SP - 38 EP - 49 K1 - Resistance spot welding K1 - High carbon steels K1 - Numerical simulation K1 - Failure mode K1 - Mechanical properties. AB - Weldability of high carbon steels due to the high percentage of carbon and consequently formation of martensitic structure is very poor. In this research, resistance spot welding of eutectoid high carbon steel 1075 is experimentally and numerically investigated from various points of view. The effect of welding current as one of the most effective parameters on failure mode, mechanical properties and nugget size diameter in resistance spot welding is analyzed with experimental tests and numerical simulations. The results show that with increase of welding current, the diameter of nugget size is increased and consequently the failure mode changes from interfacial mode to pull out mode. LA eng UL http://jwsti.iut.ac.ir/article-1-25-en.html M3 ER -