This research work explores the weldability, structural integrity, mechanical properties, and corrosion behavior of dissimilar welds of Monel 400 and AISI 316L developed by using Interpulse and pulse arc current modes in TIG welding process. ERNiCrMo-3 filler of 1.6 mm was used to fill the V-groove configuration of 5 mm thick plates in multiple passes. Metallurgical changes were observed in both Interpulse and pulsed current dissimilar weldments using optical and scanning electron microscope techniques. Mechanical properties of the joined structures were evaluated by performing tensile tests on UTM and hardness measurements on weld surfaces using Vickers hardness tester. The resistance against the corrosion especially at the weld area of both welded structures was measured using a cyclic sweep test. From the XRT and visual inspection analyses, the joined structures were free from defects and also seen the uniformity of the filler distribution toward the base metals. The grain structure with well-defined grain structures were identified in PC-TIG weldments whereas fine grains with clear distribution of filler alloying elements were seen in Interpulse-TIG weldments. Interpulse-TIG weldments exhibited with better mechanical and corrosion resistance properties than the PC-TIG weldments vowing to constricted arc mode during the welding process.
WangLWuTWangD, et al.A novel heterogeneous multi-wire indirect arc directed energy deposition for in-situ synthesis Al-Zn-Mg-Cu alloy: process, microstructure and mechanical properties. Addit Manuf2023; 72: 103639.
2.
VemanaboinaHEdisonGAkellaS,et al.Effect of residual stresses of GTA welding for dissimilar materials. Mater Res2018; 21. 10.1590/1980-5373-mr-2017-1053.
3.
ZhaoDJiangCZhaoK. Ultrasonic welding of AZ31B magnesium alloy and pure copper: microstructure, mechanical properties and finite element analysis. J Mater Res Technol2023; 23: 1273–1284.
4.
KrishnajaDCheepuMVenkateswarluD. A review of research progress on dissimilar laser weld-brazing of automotive applications. IOP Conf Ser: Mater Sci Eng2018; 330: 012073.
5.
ZhangQZhuoZZhouH,et al.Microstructure analysis and hardness prediction based on microstructure evolution theory in multi-pass welded joint. Proc Inst Mech Eng Part C J Mech Eng Sci2022; 236: 7246–7258.
6.
SabziMMousavi AnijdanSH, et al.The effect of pulse current changes in PCGTAW on microstructural evolution, drastic improvement in mechanical properties, and fracture mode of dissimilar welded joint of AISI 316L-AISI 310S stainless steels. Mater Sci Eng A2021; 823: 141700.
7.
YelamasettiBVardhanTVRamanaGV. Study of metallurgical changes and mechanical properties of dissimilar weldments developed by interpulse current TIG welding technique. Proc Inst Mech Eng Part C J Mech Eng Sci2021; 235. 10.1177/0954406220960780.
8.
YelamasettiBSai AdithyaGSri RamadeviR, et al.Metallurgical, mechanical and corrosion behaviour of pulsed and constant current TIG dissimilar welds of AISI 430 and Inconel 718. J Mater Res Technol2023; 24: 6652–6664.
9.
YelamasettiBRajyalakshmiGVenkat RamanaG, et al.Comparison of metallurgical and mechanical properties of dissimilar joint of AISI 316 and Monel 400 developed by pulsed and constant current gas tungsten arc welding processes. Int J Adv Manuf Technol2020; 108: 2633–2644.
10.
SadekAAAbassMZaghloulB, et al.Investigation of dissimilar joints between low carbon steel and Monel 400 (materials, metallurgy & weldability). Trans JWRI2000; 29: 21–28.
11.
KumarKMasantaMKumar SahooS. Microstructure evolution and metallurgical characteristic of bead-on-plate TIG welding of Ti-6Al-4V alloy. J Mater Process Technol2019; 265: 34–43.
12.
ZengLLvTChenH, et al.Flow accelerated corrosion of X65 steel gradual contraction pipe in high CO2 partial pressure environments. Arabian J Chem2023: 104935. 10.1016/j.arabjc.2023.104935.
13.
DevSRamkumarKDArivazhaganN,et al.Effect of continuous and pulsed current GTA welding on the performance of dissimilar welds involving aerospace grade alloys. Trans Indian Inst Met2017; 70: 729–739.
14.
AbdollahiAShamanianMGolozarMA. Comparison of pulsed and continuous current gas tungsten arc welding in dissimilar welding between UNS S32750 and AISI 321 in optimized condition. Int J Adv Manuf Technol2018; 97: 687–696.
15.
YelamasettiBRajyalakshmiG. Residual stress analysis, mechanical and weldments metallurgical of Monel properties 400 and of AISI dissimilar 316. Int J Mater Res2020; 111: 880–893.
16.
Devendranath RamkumarKNarenSVKarthik PagaVR, et al.Development of pulsed current gas tungsten arc welding technique for dissimilar joints of marine grade alloys. J Manuf Process2016; 21: 201–213.
17.
XieJChenYYinL, et al.Microstructure and mechanical properties of ultrasonic spot welding TiNi/Ti6Al4 V dissimilar materials using pure Al coating. J Manuf Process2021; 64: 473–480.
18.
YelamasettiBRamanaGVManikyamS,et al.Thermal field and residual stress analyses of similar and dissimilar weldments joined by constant and pulsed current TIG welding techniques. Adv Mater Process Technol2022; 8: 1889–1904.
19.
SonarTBalasubramanianVMalarvizhiS, et al.Maximizing strength and corrosion resistance of InterPulsed TIG welded Superalloy 718 joints by RSM for aerospace applications. CIRP J Manuf Sci Technol2021; 35: 474–493.
20.
YelamasettiBRajyalakshmiG. Residual stress analysis, mechanical and metallurgical properties of dissimilar weldments of Monel 400 and AISI 316. Int J Mater Res2020; 111: 880–893.
21.
MishraDManjunathAParthibanK. Interpulse TIG welding of titanium alloy (Ti-6Al-4V). Indian Welding J2017; 50: 56.
22.
DevSRamkumarKDArivazhaganN,et al.Investigations on the microstructure and mechanical properties of dissimilar welds of inconel 718 and sulphur rich martensitic stainless steel, AISI 416. J Manuf Process2018; 32: 685–698.
23.
Devendranath RamkumarKNarenSVKarthik PagaVR, et al.Development of pulsed current gas tungsten arc welding technique for dissimilar joints of marine grade alloys. J Manuf Process2016; 21: 201–213.
24.
Devendranath RamkumarKPatelSDSri PraveenS, et al.Influence of filler metals and welding techniques on the structure-property relationships of Inconel 718 and AISI 316L dissimilar weldments. Mater Des2014; 62: 175–188.
25.
Devendranath RamkumarKNarenSVKarthik PagaVR, et al.Development of pulsed current gas tungsten arc welding technique for dissimilar joints of marine grade alloys. J Manuf Process2016; 21: 201–213.
26.
WangBQiuF, et al.Microstructure and shearing strength of stainless steel/low carbon steel joints produced by resistance spot welding. J Mater Res Technol2022; 20: 2668–2679. 10.1016/j.jmrt.2022.08.041.
27.
BiYZhangYLiuK, et al.Two pass laser welding of 304 stainless to TC4 titanium alloy using Monel 400/Nb bilayer. J Mater Res Technol2020; 9: 16522–16528.
28.
OgbonnaSAkinlabiSAMadusheleN, et al.Grey-based Taguchi method for multi-weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steel. Results Eng2023; 17: 100963.
29.
ZhouZLöthmanJ. Dissimilar welding of super-duplex and super-austenitic stainless steels. Weld World2017; 61: 21–33.
30.
SonarTMalarvizhiSBalasubramanianV. Influence of arc constriction current frequency on tensile properties and microstructural evolution of tungsten inert gas welded thin sheets of aerospace alloy. Trans Nonferrous Met Soc China2021; 31: 456–474.
31.
YelamasettiBVardhanTVRamanaGV. Study of metallurgical changes and mechanical properties of dissimilar weldments developed by interpulse current TIG welding technique. Proc Inst Mech Eng Part C J Mech Eng Sci2021; 235. 10.1177/0954406220960780.
