چکیده مقاله
This study investigates and compares the effects of Shielded Metal Arc Welding SMAW and Gas Tungsten Arc Welding GTAW processes on the iron dilution during cladding of the nickel based superalloy Inconel 625 deposited on ASME SA387 Gr 11 low alloy creep resistant steel, which is widely used in pressure vessels The main challenge is achieving an optimal balance between metallurgical quality dilution percentage and processing time In the GTAW process, cladding was performed in two layer and three layer configurations, whereas in the SMAW process, three layers were applied The extent of iron Fe migration and elemental distribution at the interface were evaluated using EDS analysis, and precise time measurements were conducted for each welding pass Chemical analysis results indicated that in the SMAW process, the iron dilution reached 3 8% after applying three layers In contrast, in the GTAW process, iron dilution values of 4 3% for two layers and 2 2% for three layers were measured This behavior is attributed to differences in heat input, thermal concentration, and the superior control of substrate surface melting in the GTAW process The reduction in dilution observed in the three layer GTAW configuration compared to the two layer configuration is mainly due to the increased contribution of filler material in the final weld metal layer On the other hand, the SMAW process exhibited a significantly higher deposition speed compared to GTAW, achieving a productivity index of 2 75, whereas the corresponding value for GTAW was 0 83 The productivity analysis demonstrated that although GTAW provides better dilution control in each layer, SMAW is considerably more efficient for industrial applications, particularly in large scale projects Despite the need for an additional layer, SMAW proves to be more suitable for industrial cladding applications
کلیدواژهها
نویسندگان
Majid Haghighi Borujeni
Master's degree in Materials Engineering Welding from Arak University, Design Expert in Metallurgy Department of Arak Machine Manufacturing Company
Iman Mohammadi
Senior experts in materials engineering, metallurgy, manufacturing and equipment and laboratory department of Arak Machine Building Company
Alireza Nouri
Senior experts in materials engineering, metallurgy, manufacturing and equipment and laboratory department of Arak Machine Building Company
Ali Baghdadi
Senior experts in materials engineering, metallurgy, manufacturing and equipment and laboratory department of Arak Machine Building Company
Hossein Mostaan
Department of Materials Engineering and Metallurgy, Faculty of Technical and Engineering, Arak University
فردین نعمت زاده
Nanotechnology and Advanced Materials Department, Materials and Energy Research Center MERC , Karaj
شیوه ارجاع
Haghighi Borujeni, Majid and Mohammadi, Iman and Nouri, Alireza and Baghdadi, Ali and Mostaan, Hossein and Nematzadeh, Fardin,1404,Investigation of the Effects of SMAW and GTAW Welding Processes on Iron Dilution in Inconel 625 Cladding on ASME SA387 Low-Alloy Steel,8th International Conference on Welding and Non Destructive Testing & 26th National Conference on Welding & Inspection & 15th National Conference on NDT & 4th National Conference on Additive Manufacturing,Tehran
ارائهشده در
مجموعه مقالات هشتمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب، بیست و ششمین کنفرانس ملی جوش و بازرسی، پانزدهمین کنفرانس ملی آزمایش های غیرمخرب و چهارمین کنفرانس ملی ساخت افزایشی20 بهمن 1404 · تهران