Abstract
Tungsten inert gas (TIG) welding is the most common manufacturing process used to join materials like stainless steel, titanium and aluminium alloys due to their high-quality and inexpensive welds. Furthermore, the difficulty in welding plates having a thickness of 4 mm or more is overcome by employing activated TIG (A-TIG) welding process which uses an activating flux for high depth of penetration in a single pass. Uni-axial tensile test is conducted to assess the tensile strength of the material by experimentation. In this study, a uni-axial tensile test of base metal (BM) and weld metal (WM) samples are simulated using ABAQUS to evaluate the accuracy of finite element (FE) simulation results with the experimental results for predicting the tensile strength. The results show that the stress–strain values predicted by the FE analysis agree with experimental results. Also, the fracture behaviour of experimentation and FE simulation is identical with ductile mode of fracture. The fracture location of the sample in FE analysis is found very similar to experimental fractured samples. The results of ferrite measurement indicate that concentration of delta-ferrite in the WM (5.9 FN) is higher than BM (1.2 FN) content and show better mechanical behaviour in the A-TIG weldments. Also, scanning electron microscope (SEM) shows that the failure of BM and WM resembled to ductile mode-type fracture.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Nakhodchi, S., Shokuhfar, A., Iraj, S.A., Thomas, B.G.: Evolution of temperature distribution and microstructure in multipass welded AISI 321 stainless steel plates with different thicknesses. J. Press. Vessel Technol. 137(6), 061405-1-15 (2015)
Fujii, H., Sato, T., Lu, S., Nogi, K.: Development of an advanced A-TIG (AA-TIG) welding method by control of Marangoni convection. Mater. Sci. Eng. A 495, 296–303 (2008)
Vidyarthy, R.S., Dwivedi, D.K.: Activating flux tungsten inert gas welding for enhanced weld penetration: J. Manuf. Process. 22, 211–228 (2016)
Joun, M., Choi, I., Eom, J., Lee, M.: Finite element analysis of tensile testing with emphasis on necking: Comput. Mater. Sci. 41, 63–69 (2017)
Reisgen, U., Schleser, M., Mokrov, O., Ahmed, E.: Numerical and experimental investigation of tensile behavior of laser beam welded TRIP700 steel. ISIJ Int. 51(3), 429–434 (2011)
Garcia-Garino, C., Gabaldon, F., Goicoleab, J.M.: Finite element simulation of the simple tension test in metals. Finite Elem. Anal. Des. 42, 1187–1197 (2006)
Patel, A.B., Patel, S.P.: The effect of activating fluxes in TIG welding by using Anova for SS 321. Int. J. Eng. Res. Appl. 4, 41–48 (2014)
Mohan Kumar, S., Siva Shanmugam, N.: Studies on the weldability, mechanical properties and microstructural characterization of activated flux TIG welding of AISI 321 austenitic stainless steel. Mater. Res. Express 5, 106524, 1–48 (2018)
Sawakar, N., Boob, G.: Finite element based simulation of orthogonal cutting process to determine residual stress induced. Int. J. Comput. Appl. 0975–8887 (2014)
Liu, G.-H., Liu, M.-H., Yi, Y.-Y.: Activated flux tungsten inert gas welding of 8 mm-thick AISI 304 austenitic stainless steel. J. Cent. South Univ. 22, 800–805 (2015)
Pouranvari, M., Asgari, H.R., Mosavizadch, S.M., Mariachi, P.H., Goodarzi, M.: Effect of weld nugget size on overload failure mode of resistance spot welds. Sci. Technol. Weld. Join. 2, 217–225 (2007)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Mohan Kumar, S., Siva Shanmugam, N., Sankaranarayanasamy, K. (2019). Activated TIG Welding of AISI 321 Austenitic Stainless Steel for Predicting Parametric Influences on Weld Strength of Tensile Test—Experimental and Finite Element Method Approach. In: Narayanan, R., Joshi, S., Dixit, U. (eds) Advances in Computational Methods in Manufacturing. Lecture Notes on Multidisciplinary Industrial Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-32-9072-3_16
Download citation
DOI: https://doi.org/10.1007/978-981-32-9072-3_16
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-32-9071-6
Online ISBN: 978-981-32-9072-3
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)