International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Mechanical and electrometrical behavior of dissimilar welds between low Carbone steel (X70) and Carbone steel (42CrMo4), were studied using a combination of optical and electron microscopy. Thus, the influence of weld parameters on fusion zone and heat affected zone was investigated using two filler metals and two weld currents. The results of our work show that alternative TIG welding presents the butter combination between metallurgical and Mechanical comportment, also it was established in this study, that nickel alloy filler has the best electromecanical behavior for these types of welds.