In this paper, dissimilar resistance spot welding of AISI 1075 eutectoid steel to AISI 201 stainless steel is investigated experimentally. For this purpose, the experiments are designed using response surface methodology and based on four-factor, five-level central composite design. The effects of process parameters such as welding current, welding time, cooling time and electrode force are inv...

In this study, AISI 1040 and 4140 steels were boriding using Ekabor-II commercial powder with powder-pack method microwave conventional heating methods. The samples borided at 950 °C for 2 6 hours in an Ar atmosphere a oven of Enerzi-Mh2912-V8. Biphasic structure (FeB/Fe2B) was formed all hours. A single-phase observed steel Compared to the method, 1.5-1.6 times thicker boride layer obtained mi...

This work aims to investigate the microstructure and mechanical behavior of dissimilar API X80-AISI 4130 steel welded joints coiled tubing. The at weld interface AISI side results in a relatively lower toughness. HAZ has an obvious coarsening phenomenon. tensile tests show that deformation process joint is mainly controlled by two base materials: beginning X80 its end. Charpy impact toughness c...

The influence of the deformation grade on the recrystallised grain size has been studied in the AISI 304 stainless steel. Therefore, cold rolled samples of this material with reductions varying between 30% and 80% were annealed at different temperatures and subsequently quenched. The mean austenitic grain sizes were measured and compared. Moreover, the correlation between the variation of the t...