Experimental Investigations on Activated-TIG Welding of Inconel 625 and AISI 304 Alloys

  • Santhiyagu Joseph VijayEmail author
  • S. Mohanasundaram
  • P. Ramkumar
  • Hong Gun Kim
  • Alexandre Tugirumubano
  • Sun Ho Go
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


Activated-TIG (A-TIG) welding is an offshoot of gas tungsten arc welding process (GTAW), which uses a flux, applied over the faying surface before carrying out welding. It results in increased joint penetration and depth-to-width ratio. In this present investigation, Inconel 625 and AISI 304 are welded individually and together using A-TIG process. Owing to their high resistance to corrosion and wear, those materials are commonly used in marine and ship building applications. The process parameters are fixed based on a number of experimental trials and the welding is carried out using the optimized parameters. Investigations on the weldments such as tensile strength and microstructure are carried out and presented. When compared to GTAW process, results show that the weldments exhibit better mechanical and metallurgical properties while welded using A-TIG process. It is also imperative from the results that A-TIG process is a good contender for dissimilar joints as well.


Inconel 625 AISI 304 A-TIG process Tensile strength Microstructure 


  1. 1.
    Marya, M.: Theoretical and experimental assessment of chloride effects in the A-TIG welding of magnesium. Weld. World 46(7–8), 7–21 (2002)CrossRefGoogle Scholar
  2. 2.
    Shakil, M., Ahmad, M., Tariq, N.H., Hasan, B.A., Akhter, J.I., Ahmed, E., Mehmood, M., Choudhry, M.A., Iqbal, M.: Microstructure and hardness studies of electron beam welded Inconel 625 and stainless steel 304L. Vacuum 110, 121–126 (2014)CrossRefGoogle Scholar
  3. 3.
    Song, K.H., Nakata, K.: Effect of precipitation on post-heat-treated Inconel 625 alloy after friction stir welding. Mater. Des. 31(6), 2942–2947 (2010)CrossRefGoogle Scholar
  4. 4.
    Shankar, V., Rao, K.B.S., Mannan, S.L.: Microstructure and mechanical properties of Inconel 625 superalloy. J. Nucl. Mater. 288(2–3), 222–232 (2001)CrossRefGoogle Scholar
  5. 5.
    Arivazhagan, N., Singh, S., Prakash, S., Reddy, G.M.: Investigation on AISI 304 austenitic stainless steel to AISI 4140 low alloy steel dissimilar joints by gas tungsten arc, electron beam and friction welding. Mater. Des. 32(5), 3036–3050 (2011)CrossRefGoogle Scholar
  6. 6.
    Buytoz, S., Ulutan, M.: In situ synthesis of SiC reinforced MMC surface on AISI 304 stainless steel by TIG surface alloying. Surf. Coat. Technol. 200(12–13), 3698–3704 (2006)CrossRefGoogle Scholar
  7. 7.
    Kumar, S., Shahi, A.S.: Effect of heat input on the microstructure and mechanical properties of gas tungsten arc welded AISI 304 stainless steel joints. Mater. Des. 32(6), 3617–3623 (2011)CrossRefGoogle Scholar
  8. 8.
    Meshram, S.D., Mohandas, T., Reddy, G.M.: Friction welding of dissimilar pure metals. J. Mater. Process. Technol. 184(1–3), 330–337 (2007)CrossRefGoogle Scholar
  9. 9.
    Modenesi, P.J., Apolinario, E.R., Pereira, I.: TIG welding with single-component fluxes. J. Mater. Process. Technol. 99(1–3), 260–265 (2000)CrossRefGoogle Scholar
  10. 10.
    Dupont, J.N., Banovic, S.W., Marder, A.R.: Microstructural evolution and weldability of dissimilar welds between a super austenitic stainless steel and nickel-based alloys. Weld. J. 82(6), 125 (2003)Google Scholar
  11. 11.
    Naffakh, H., Shamanian, M., Ashrafizadeh, F.: Dissimilar welding of AISI 310 austenitic stainless steel to nickel-based alloy Inconel 657. J. Mater. Process. Technol. 209(7), 3628–3639 (2009)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Santhiyagu Joseph Vijay
    • 1
    Email author
  • S. Mohanasundaram
    • 1
  • P. Ramkumar
    • 1
  • Hong Gun Kim
    • 2
  • Alexandre Tugirumubano
    • 2
  • Sun Ho Go
    • 2
  1. 1.Department of Mechanical EngineeringKarunya Institute of Technology and SciencesCoimbatoreIndia
  2. 2.Carbon Technology Laboratory, Department of Mechanical and Automotive EngineeringJeonju UniversityJeonjuSouth Korea

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