Effect of TiO2, Fe2O3, and Duplex of TiO2 and Fe2O3 Fluxes On Microstructural, Mechanical Properties And, Weld Morphology of A-TIG AH-36 Marine-Grade Steel Weldments
How to Cite?
K.Vijaya Kumar, N. Ramanaiah, N. Bhargava Rama Mohan Rao, "Effect of TiO2, Fe2O3, and Duplex of TiO2 and Fe2O3 Fluxes On Microstructural, Mechanical Properties And, Weld Morphology of A-TIG AH-36 Marine-Grade Steel Weldments," International Journal of Engineering Trends and Technology, vol. 69, no. 12, pp. 218-228, 2021. Crossref, https://doi.org/10.14445/22315381/IJETT-V69I12P226
The current study investigates the metallurgical, mechanical properties and weld morphology of AH-36 marine grade steel with the thickness of 8mm by A-TIG welding butt joints with the application of different fluxes, i.e., TiO2, Fe2O3, and duplex of TiO2 and Fe2O3 at various process parameters, at a constant welding speed 120 mm/min and current varied from 160A to 220A uniformly to optimize process parameters to achieve desired mechanical properties, weld morphology, and lowest possible heat input. The study also focused on comparing tensile strength, impact strength, and microhardness, heat input during welding, and at different operating conditions, weld bead geometry such as Depth (D), width(W), and aspect ratio(D/W) are compared between traditional TIG welding and A-TIG welding. Tensile results reported that fracture occurs at the base region in both TIG welding and A-TIG weldments. The excessive impact strength and irregular heat input were observed with duplex flux coated weldments. A higher aspect ratio, full penetration narrow width of weld bead achieved with TiO2 and Fe2O3 duplex flux coated weldments because of the stable arc, Marangoni effect, and arc constriction. Microhardness results reported that the fusion zone has a higher microhardness in A-TIG welding than ordinary TIG welding. It concluded that TiO2 and Fe2O3 duplex flux coating produced better butt welds of AH-36 steel out of all fluxes. In addition to that, ABAQUS software is used to simulate and validate the tensile test experimental results.
A-TIG Welding, AH-36 steel, weld bead depth, weld bead width, weld zones.
 Tseng KH, Hsu CY. Performance of activated TIG process in austenitic stainless-steel welds. Journal of Materials Processing Technology 211 (2011) 503–512. DOI: 10.1016/j.jmatprotec.2010.11.003.
 Lin HL, Wu TM. Effects of activating flux on weld bead geometry of Inconel 718 alloy TIG welds. Materials Manufacturing Process 27(12) 1457–1461:DOI: org/10.1080/10426914.2012.677914
 Tseng K, Chuang K. Application of iron-based powders in tungsten inert gas welding for 17Cr–10Ni–2Mo alloys. Powder Technology 228 (2012) 36-46.DOI:10.1016/j.powtec.2012.04.047  Tseng K.H, Chen K.L. Comparisons between TiO2? and SiO2?flux assisted TIG welding processes. Journal of Nanoscience and Nanotechnology 12(8) (2012) 6359-67. DOI: 10.1166/jnn.2012.6419
 Sakthivel. T et al. Comparing creep-rupture behavior of type 316L (N) austenitic stainless-steel joints welded by TIG and activated TIG welding processes.Materials Science Engineering, 528(22) (2011) 6971– 6980. DOI: 10.1016/j.msea.2011.05.052.
 Fujii H, Sato T, Lu S, Nogi K. Development of an advanced A-TIG (AA-TIG) welding method by control of Marangoni convection. Materials Science Engineering 495(1) (2008) 296–303. DOI:10.1016/j.msea.2007.10.116
 Le Conte S, Paillard P, Chapelle P, HenrionG, Saindrenan.J. Effect of oxide fluxes on activation mechanisms of tungsten inert gas process. Science and Technology of Welding and Joining 11(4) (2006) 389–397:doi.org/10.1179/174329306X129544.
 Priya Chauhan, Hemant Panchal A Review On Activated Gas Tungsten Arc Welding(A-GTAW), International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, 1(5) (2016) 798 - 803, Available: http://www.ijsdr.org/papers/IJSDR1605145.pdf
 Sharma, P.; Dwivedi, D. K. Comparative Study of Activated Flux-GTAW and Multipass-GTAW Dissimilar P92 Steel-304H ASS Joints. Material Manufacturing Process. (2019). DOI: 10.1080/ 10426914.2019.1605175.
 Kamal H. Dhandha, Vishvesh J. Badheka, Effect of activating fluxes on weld bead morphology of P91 steel bead-on-plate welds by flux assisted tungsten inert gas welding process. Journal of Manufacturing Processes, 17 (2015) 48-57.DOI:10.1016/j.jmapro.2014.10.004.
 Huang HY, Shyu SW, Tseng KH, Chou CP. Evaluation of TIG flux welding on the characteristics of stainless steel. Science and Technology of Welding and Joining 10(5) (2005) 566–73.doi.org/10.1179/174329305X48329.
 Devendra Nath Ramkumar, Jelli Lakshmi Narasimha Varma, Gangineni Chaitanya, Ayush Choudhary, N. Arivazhagan,S. Narayanan. Effect of autogenous GTA welding with and without flux addition on the microstructure and mechanical properties of AISI904L joints. Materials Science & Engineering A636 (2015) 1–9. DOI:10.1016/j.msea.2015.03.072.
 Kuang-Hung Tseng, Development, and application of oxide-based flux powder for tungsten inert gas welding of austenitic stainless steels, Powder Technology, 233 (2013) 72-79. http://dx.doi.org/10.1016/j.powtec.2012.08.038
 Tseng, K. H, Chen P. Y. Effect of TiO2 Crystalline Phase on Performance of Flux Assisted GTA Welds. Materials and Manufacturing Processes 31(3) (2016) 359–365.https://doi.org/10.1080/10426914.2015.1058952.
 Prajapati S, Shah K. Experimental Study on Activated Tungsten Inert Gas Welding-A review paper. International Journal of Advance Research and Innovative Ideas in Education 2(3) (2016) 2555-2559.
 Paul BG, Ramesh Kumar KC. Effect of single component and binary fluxes on the depth of penetration in a-TIG welding of Inconel alloy 800H austenitic stainless steel. International Journal of Advanced Engineering and Global Technology 5 (2017) 1791–1795. https://doi.org/10.48084/etasr.2097
 Jurica M, Kozuh Z. Optimization of the A-TIG welding for stainless steels.IOP Conference Series: Materials Science and Engineering; 329, 2018. IOP Conf. Series: Materials Science and Engineering 329 (2018) 012012. doi:10.1088/1757-899X/329/1/012012
 Hdhibi A, Touileb K, Djoudjou R, Ouis A, Bouazizi ML, Chakhari J. Effect of Single Oxide Fluxes on Morphology and Mechanical Properties of ATIG on 316 L Austenitic Stainless-Steel Welds. Engineering, Technology & Applied Science Research 8(3) (2018) 3064-3072,.https://doi.org/10.48084/etasr.2097.
 Afolalu SA, Soetan SB, Ongbali SO, Abioye AA, Oni AS. Impact of activated–flux tungsten inert gas (A-TIG) welding on weld joint of a metal-Riew. Materials Science and Engineering; IOP Conf. Series: Materials Science and Engineering 640 (2019) 012064. doi:10.1088/1757-899X/640/1/012064
 Touileb K, Ouis A, Djoudjou R, Hedhibi A-C, Alrobei H, Albaijan I. Effects of A-TIG welding on weld shape, mechanical properties, and corrosion resistance of 430 ferritic stainless-steel alloy.Metals 10(3) (2020) 404; https://doi.org/10.3390/met10030404.
 Rana H, Badheka V, Patel P, Patel V, Li W, Andersson J. Augmentation of weld penetration by flux assisted TIG welding and its distinct variants for oxygen-free copper. Journal of Materials Processing Technology 10 (2021) 138–151. https://doi.org/10.1016/j.jmrt.2020.12.009
 Ahmadi E, Ebrahimi AR. Welding of 316L Austenitic Stainless Steel with Activated Tungsten Inert Gas Process.Journal of Materials Engineering and Performance 24 (2014) 1065–1071. DOI:10.1007/s11665-014-1336-6.
 Kamal H. Dhandha, Vishvesh J. Badheka, Effect of activating fluxes on weld bead morphology of P91 steel bead-on-plate welds by flux assisted tungsten inert gas welding process, Journal of Manufacturing Processes, 17 (2015) 48-57. http://dx.doi.org/10.1016/j.jmapro.2014.10.004.
 Mayank Nirbhay, Anurag Dixit, R.K. Misra, Harlal Singh Mali, Tensile Test Simulation of CFRP Test Specimen Using Finite Elements, Procedia Materials Science, 5 (2014) 267-273. doi: 10.1016/j.mspro.2014.07.266.
 Heiple CR and Roper JR. ASM Conf. Trends in Welding Research in the United States, New Orleans, LA, 1982 (1981) 489–515.
 Suman Saha1and SantanuDas2 Effect of polarityandoxide fluxes on weld-bead geometry in activated tungsten inert gas (A-TIG) weldingJournal of Welding and Joining, 38(4) (2020) 380-388 https://doi.org/10.5781/JWJ.2020.38.4.7
 Arivazhagan B, Vasudevan M. A study of microstructure and mechanical properties of grade 91 steel A-TIG weld joint.Journal of Materials Engineering and Performance 22(12) (2013) 3708–3716. DOI: 10.1007/s11665-013-0694-9
 Hilkes J, Gross V. Welding Cr-Mo steels for power generation and petrochemical applications – past, present, and future.BiulInstytSpawalnictwa 2(1) (2013) 1–22.
 Lu S, Fujii H, Nogi K. Marangoni convection and weld shape variations in Ar–O2 and Ar–CO2 shielded GTA welding. Materials Science Engineering 2004; 380:290–297
 Vasantharaja P, Vasudevan M. Studies on A-TIG welding of low activation ferritic/martensitic (LAFM) steel. Journal of Nuclear Materials 421 (2012) 117–123. 10.1016/j.jnucmat.2011.11.062
 Yu, D. N., Wang, Y., & She, J. W., Simulation of Metal Material Quasi-Static Tensile Test Based on ABAQUS. Applied Mechanics and Materials, 328 (2013) 985–989.
 Kamel Touileb 1, AbousoufianeOuis 1 Effects of ATIG Welding on Weld Shape, Mechanical Properties, and Corrosion Resistance of 430 Ferritic Stainless-Steel Alloy, MDPI journals, Metals, 10 (2020) 404. doi:10.3390/met10030404.