Characterization of Duplex Stainless Steel/Cold Reduced Low Carbon Steel Dissimilar Weld Joints by GTAW

Abstract:

The purpose of this study is to evaluate the mechanical and metallurgical properties of dissimilar metal weld joints between duplex stainless steel/Cold Reduced low carbon Steel (CRS) by Gas Tungsten Arc Welding (GTAW) process. The dissimilar 2 mm thickness plates of duplex stainless steel and cold reduced low carbon steel, conforming to AISI 2205 and IS 513_2008 CR2_D were butt welded by means of gas tungsten arc welding using argon as shielding gas. The butt welding joint arrangement was used for this experiment using E 309L electrode as filler metal. The joints were investigated for mechanical properties and microstructure. Tensile, Hardness and bend tests were carried out to evaluate the mechanical properties. Optical microscopy was used to explore the microstructure. The micro structural examination of the weld region revealed dendritic delta ferrite. Micro examination of DSS base metal revealed elongated grains of austenite (white) with ferrite (Brown). Micro examination of CRS base metal discloses deformed grains of ferrite present in the matrix. Fracture analysis was conducted for the failure part with Scanning Electron Microscope (SEM) and found ductile fracture occurred at CR steel side.

• Periodical: Applied Mechanics and Materials (Volumes 766-767)
• Pages: 780-788
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.766-767.780
• Online since: June 2015
• Authors: D. Devakumar*, D.B. Jabaraj, V.K. Bupesh Raja, Periyasamy P
• Keywords: Cold Reduced Low Carbon Steel, Dissimilar Welding, Duplex Stainless Steel, Gas Tungsten Arc Welding, Mechanical Properties, Scanning Electron Microscope

References

[1] Kuang-Hung Tseng, Development and application of oxide based flux powder for tungsten inert Gas welding of austenitic stainless steel, powder Technology. 233 (2013) 72-79.

DOI: 10.1016/j.powtec.2012.08.038

[2] G.R. Mirshekari, E. Taxakoli, M. Atapour, B. Sadeghian, Microstructure and corrosion behaviour of Multipass gas tungsten arc welded 304L stainless steel materials & Design. 55 (2014) 905-911.

DOI: 10.1016/j.matdes.2013.10.064

[3] Kuang-Hung Tseng, Chin-YuHsu. 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

[4] Tsann-shyichern, kuang-Hung Tseng, Hsien-Lung Tsai, Study of the characteristics of duplex Stainless steel activated tungsten inert gas welds, Materials and Design. 32 (2011) 255-263.

DOI: 10.1016/j.matdes.2010.05.056

[5] A. Poznansky, C.S. Nalbone, J.D. Crawford, The corrosion of resistance of 25Cr-3. 5Mo-6Ni and 25Cr45Mo-6Ni cast duplex stainless steels, Proc. Conf. Duplex Stainless Steels, ASM (1983) 431-444.

DOI: 10.3323/jcorr1974.33.1_3

[6] J. Honeycombe, T.G. Gooch, Intergranular attack in welded stress-corrosion resistant stainless Steels, Weld.J. 56 (11) (1977) 339-353.

[7] Shaogang Wang, Qihui Ma, Yan Li, Characterization of microstructure, mechanical properties And corrosion resistance of dissimilar welded joint between 2205 duplex stainless steel and 16MnR, Materials and design. 32 (2011) 831-837.

DOI: 10.1016/j.matdes.2010.07.012

[8] C.D. Lundin, Dissimilar metal welds-Literature review, Welding J. 61 (2) (1982) 585-635.

[9] D.J. Kotecki, V. B Rajan, Submerged Arc fillet welds between Mild Steel and Stainless Steel, Proc. 1996 Conf. Adv. weld. Technol Joining High-Perf. Mater., Edison Welding Inst., Columbus, OH, pp. (1997) 33-58.

[10] R.L. Klueh, J.F. King, Austenitic-ferritic weld joint failures, Welding J. 61(9): (1982) 302-311.

[11] S.K. Albert, T.P.S. Gill, A.K. Tyagi, S.L. Mannan, S.D. Kulkami, P. Rodriguez, Soft zone Formation in dissimilar welds between two Cr-Mo steels, Welding J. 76(3): (1997) 135-142.

[12] C.D. Lundin, K.K. Khan, D. Yang, Effect of carbon Migration on the Metallurgical Structure And Mechanical Properties of Cr-Mo Weldments, Porc. Conf. recent Trends in Welding Science and Tech., Gatlinburg, TN (May 14-18, 1989), ASM Intl, Materials Park, OH, pp. (1990).

[13] E. Zumelzu, C. Cabetas, Study of welding such dissimilar materials as AISI 304 stainless steel And DHP copper in a sea water environment, Influence of weld metal on corrosion. J. Mater. Process. Technol. 57(3) : (1996) 246-252.

DOI: 10.1016/0924-0136(95)02073-x

[14] R.H. Ryder, C.F. Dahms, Design criteria for dissimilar metal welds, Welding Res. Council Bull. 350(1990) 1-11.

[15] Z. Sun, R. Karppi, Application of electron beam welding for the joining of dissimilar metals. J. Mater. Process. Technol. 59(3) (1996) 257-267.

DOI: 10.1016/0924-0136(95)02150-7

[16] R. Wise, New technique for joining dissimilar materials, Welding Rev. Int. 12(1): (1993) 40-42.

[17] Michael k. Harris, Welding Health and Safety by American Industrial Hygiene Association, Book, (2002).

[18] A. A. Shirali, K. C. Mills, The effect of welding parameters on penetration in GTA welds, Welding J, No. 72, 7, PP. (1993) 347-353.

[19] American society of testing and materials International E407-07., Standard practices for micro Etching metal and alloys. www. astm. org/ DATA BASE. CART.

[20] American society of testing and materials International E8-04., Standard test method for Tension testing of metallic materials.

[21] American society of testing and materials International E92-82., Standard test method for Vickers Hardness of metallic materials.