چکیده مقاله
P460NH micro alloy steel is used in applications such as boilers and pressure vessels Different welding processes and filler metal can be used to for welding of this steel In this study, manual arc welding process SMAW with E8018 G electrode and tungsten arc welding process with argon shielded gas TIG with ER80S G welding wire were used and to obtain optimal welding parameters, according to ASME IX welding standard was performed Then, by sampling from the welding section, the corrosion behavior of the heat affected zone, weld bead and base metal was investigated separately using Tafel polarization test in 3 5% NaCl solution Evaluation of corrosion behavior of different regions also showed that in manual arc welding with shielded electrode 80E8018 G, theheat affected zone has the highest corrosion potential 0 652 v and the lowest corrosion current density 1 75 10 5 A/cm2 This is while the base metal with the lowest corrosion potential 0 693 v and the highest corrosion current density 1 2 × 10 5 A/cm2 is relative to the weld metal and the heat affected zone In tungsten arc welding with argon shielding gas with ER80S G welding wire, the weld metal has the highest corrosion potential 0 689 volts and the lowest corrosion current density 5 4× 10 5 A/cm2 And the base metal with corrosion potential 0 693 V has the highest corrosion current density 1 2 × 10 5 A/cm2 compared to the weld metal and the heat affected zone In general, by examining the corrosion resistance of two welded parts, it can be stated that the manual arc welding process with E8018 G electrode has better corrosion resistance than the tungsten arc welding process with argon shielding gas with ER80S G welding wire
کلیدواژهها
نویسندگان
Hossein Tahmasebi Manesh
Malek Ashtar University of Technology, ShahinShahr,Iran
Alireza Nasresfahani
Malek Ashtar University of Technology, ShahinShahr,Iran
شیوه ارجاع
Tahmasebi Manesh, Hossein and Nasresfahani, Alireza,1400,Investigation and comparison of uniform corrosion behavior of P460NH welded steel using TIG and SMAW welding processes,4th International Conference on Welding and Non Destructive Testing & 22nd National Conference on Welding & Inspection & 11th National Conference on NDT,Isfahan
ارائهشده در
مجموعه مقالات چهارمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب و بیست و دومین کنفرانس ملی جوش و بازرسی و یازدهمین کنفرانس ملی آزمایش های غیرمخرب18 اسفند 1400 · اصفهان