Similar and Dissimilar Resistance Spot Welds of DP600 and X8Cr17 steels sheets: Welding Current and Fracture Toughness


  • Hassanen Jaber Obuda University
  • Tünde Kovács


Fracture toughness, dual phase steel, ferritic stainless steel, resistance spot welding


Abstract — This paper presents an experimental study on the fracture toughness in similar and dissimilar of resistance spot welded dual phase and ferritic stainless steel sheets. The sheet materials were joined by using resistance spot welding as a lap joint. Tensile-shear tests were applied to the welded specimens. The variation of the Nugget diameter according to welding current was investigated. Also, the microhardness distribution was investigated. The results were discussed and plotted as graphs.


[1] 1- M.M.A. Khan and L. Romoli, G. Dini, (2013). Laser beam welding of dissimilar ferritic/martensitic stainless steels in a butt joint configuration: Optics & Laser Technology, Vol 49, pp.125–136.
[2] American Iron and Steel Institute(AISI), (2006). UltraLight Steel Auto Body. ULSAB Final Report, Washington, DC.
[3] M. Marya and X. Q. Gayden. (2005). Development of Requirements for Resistance Spot Welding Dual-Phase (DP600) Steels Part 1 — The Causes of Interfacial Fracture: Welding Journal, Vol 84, pp. 173s-182s, November.
[4] M. Tumuluru, (2006). Resistance Spot Welding of Coated High-Strength Dual-Phase Steels: Welding Journal, (Miami, Fla), Vol 85, PP. 31-37, August.
[5] C. Ma, D.L. Chen, S.D. Bhole, G. Boudreau , A. Lee , E. Biro. (2008). Microstructure and fracture characteristics of spot-welded DP600 steel: Materials Science and Engineering A Vol 485, PP. 334–346.
[6] X. Sun, E. Stephens and M. Khaleel (2008). Effects of fusion zone size and failure mode on peak load and energy absorption of advanced high strength steel spot welds under lap shear loading conditions: Engineering Failure Analysis, Vol 15, pp. 356–367.
[7] H. Hofmann, D. Mattissen, T. W. Schaumann (2006). Advanced cold rolled steels for automotive applications: Mat.-wiss. u. Werkstofftech, Vol 37, No. 9, PP. 716-723.
[8] F. Hayat (2011). Comparing Properties of Adhesive Bonding Resistance Spot Welding and Adhesive Weld Bonding of Coated and Uncoated DP 600 Steel: Journal Of Iron And Steel. Research, International. Vol 18, No 9: PP. 70-78.
[9] Hoon-Hwe Cho, Heung Nam Han, Sung-Tae Hongb, Jong-Hwan Park, Yong-Jai Kwon, Seok-Hyun Kim, Russell J. Steel (2011). Microstructural analysis of friction stir welded ferritic stainless steel: Materials Science and Engineering A Vol 528, PP. 2889–2894.
[10] M. Bilgin , C. Meran (2012). The effect of tool rotational and traverse speed on friction stir weldability of AISI 430 ferritic stainless steels: Materials and Design, Vol 33, pp. 376–383.
[11] P. Snelgrove (2012). Stainless steel automotive and transport developments. International Stainless Steel Forum,
[12] Ugur Ozsarac (2012). Investigation of Mechanical Properties of Galvanized Automotive Sheets Joined by Resistance Spot Welding: Journal of Materials Engineering and Performance, ASM International, Vol 21, PP. 748–755.
[13] M. Pouranvari, S.P.H. Marashi, D.S. Safanama (2012). Susceptibility to interfacial failure mode in similar and dissimilar resistance spot welds of DP600 dual phase steel and low carbon steel during cross-tension and tensile-shear loading conditions: Materials Science and Engineering A Vol 546, PP. 129– 138.
[14] I. Sevim (2006) Effect of hardness to fracture toughness for spot welded steel sheets: Materials and Design, Vol 27, pp.21–30.
[15] Lawn B (1993). Fracture of brittle solids printed in Great Britain, 2nd ed. Cambridge: University Press.
[16] Pook LP (1975) Fracture mechanics analysis of the fatigue behavior of spot welds. Int J Fract 11:173–176.
[17] Paris PC, Sih GC (1965) On fracture toughness testing and its application, ASTM STP381. ASTM, Philadelpia, p30.
[18] Kassir MK, Sih GC (1968) Int J Fract Mech 41:347–353.
[19] Zhang D. (1997). Stress intensities at spot welds. Int J Fract ;88:167–85.
[20] Zhang D. (1999). Stress intensities derived from stresses around a spot weld. Int J Fract ;99:239–57.
[21] D. H. Bae, I. S. Sohn and J. K. Hong (2003). Assessing the effects of residual stresses on the fatigue strength of spot welds:, Weld J, 82, 18s–23s.
[22] Khan MS, Bhole SD, Chen DL, Biro E, Boudreau G, Deventer J (2009). Welding behaviour, microstructure and mechanical properties of dissimilar resistance spot welds between galvannealed HSLA350 and DP600 steels: Sci Technol Weld Join 14:616–25.
[23] Standard Methods of Tension Testing of Metallic Materials, E 8. Annual book of ASTM standards, vol. 03.01. ASTM, Philadelphia; 2004.
[24] ANSI/AWS/SAE/D8.9-2012 " Test Method For Evaluating The Resistance Spot Welding Behavior of Automotive Sheet Steel Materials", American Welding Society, 2012.




Folyóirat szám


Materials Science and Technology (Anyagtudomány és Technológia)