Failure mode transition and mechanical properties of similar and dissimilar resistance spot welds of DP600 and low carbon steels

Abstract

The present work addresses the microstructure and mechanical properties of similar and dissimilar resistance spot welds of low carbon steel (LCS) and dual phase steel (DP600). Correlations between the critical fusion zone size required to ensure pullout failure mode, the weld microstructure and the weld hardness characteristics were developed. Dissimilar DP600/LCS spot welds exhibit the lowest tendency to fail in interfacial failure mode. Effects of weld physical attributes and weld microstructure on the peak load and energy absorption of similar and dissimilar DP600/LCS resistance spot welds are analysed.

Keywords

RESISTANCE SPOT WELD DUAL PHASE STEEL MECHANICAL PROPERTIES FAILURE MODE DISSIMILAR WELDING

References

Khan

M. I.

, Kuntz

M. L.

and Zhou

: Sci. Technol. Weld. Join., 2008, 13, 294–304.

Marashi

, Pouranvari

, Sanaee

S. M. H.

, Abedi

, Abootalebi

and Goodarzi

: Mater. Sci. Technol., 2008, 24, 1506–1512.

Gould

J. E.

and Peterson

: ‘Advanced materials requires advanced knowledge: understanding resistance spot weld performance on AHSS’, Fabricators & Manufacturers Association, International, Rockford, IL, USA, 2005, available at: www.Fmanet.org

Pouranvari

, Asgari

H. R.

, Mosavizadeh

S. M.

, Marashi

P. H.

and Goodarzi

: Sci. Technol. Weld. Join., 2007, 12, 217–225.

Pouranvari

and Marashi

S. P. H.

: Sci. Technol. Weld. Join., 2010, 15, 149–155.

Sun

, Stephens

E. V.

and Khaleel

M. A.

: Weld. J., 2007, 86, 18s–25s.

Joaquin

, Elliott

A. N. A.

and Jiang

: Weld. J., 2007, 86, 24–27.

, Bhole

S. D.

, Chen

D. L.

, Lee

, Biro

and Boudreau

: Sci. Technol. Weld. Join., 2006, 11, 480–487.

Pouranvari

, Abedi

, Marashi

and Goodarzi

: Sci. Technol. Weld. Join., 2008, 13, 39–43.

10.

Alenius

, Pohjanne

, Somervuori

and Hanninen

: Weld. J., 2006, 85, 305s–313s.

11.

Marashi

, Pouranvari

, Amirabdollahian

, Abedi

and Goodarzi

: Mater. Sci. Eng. A, 2008, A480, 175–180.

12.

Pouranvari

and Marashi

S. P. H.

: Mater. Sci. Technol., 2009, 25, 1411–1416.

13.

Poggio

, Ponte

, Gambaro

and Adamowski

: ‘Resistance spot welding of advanced high strength steel DP600’, Proc. 1st Int. Conf. on ‘Super high strength steels’, Rome, Italy, November 2005, AIM, 1–13.

14.

Daneshpour

, Riekehr

, Koçak

and Gerritsen

C. H. J.

: Sci. Technol. Weld. Join., 2009, 14, 20–25.

15.

Khan

M. S.

, Bhole

S. D.

, Chen

D. L.

, Biro

, Boudreau

and van Deventer

: Sci. Technol. Weld. Join., 2009, 14, 616–625.

16.

Hernandez

V. H. B.

, Kuntz

M. L.

, Khan

M. I.

and Zhou

: Sci. Technol. Weld. Join., 2008, 13, 769–776.

17.

Bhadeshia

H. K. D. H.

and Honeycombe

: ‘Steels: microstructure and properties’, 3rd edn; 2006, Oxford, Butterworth-Heinemann.

18.

Bhadeshia

H. K. D. H.

and Svensson

L. E.

: in ‘Mathematical modelling of weld phenomena’, (ed. H. Cerjak and K. Easterling), 1993, London, Institute of Materials. 109–182.

19.

, Walsh

C. A.

, Maiti

S. K.

and Bhadeshia

H. K. D. H.

: Sci. Technol. Weld. Join., 2003, 8, 391–398.

20.

http://homepage 3.nifty.com/yurioka/exp.html

21.

Zuniga

and Sheppard

S. D.

: in ‘Fatigue and fracture mechanics’, vol. 27, ‘ASTM STP 1296’, (ed. R. S. Piascik et al.), 469–489; 1997, Philadelphia, PA, ASTM.

22.

Davidson

J. A.

and Imhof

E. J.

Jr : ‘The effect of tensile strength on the fatigue life of spot-welded sheet steels’, SAE technical paper no. 840110, SAE, Warrendale, PA, USA, 1984.