Influencia de la técnica de soldadura multipasada y de los tratamientos térmicos de precalentamiento y post-soldadura en el comportamiento de uniones GMAW de un aceromicroaleado HARDOX 400

A. Martínez; V. Miguel; J. Coello; A. Navarro; A. Calatayud; M. C. Manjabacas

doi:10.3989/revmetalmadrid.1007

Authors

A. Martínez Instituto de Desarrollo Regional, Universidad de Castilla-La Mancha
V. Miguel Escuela de Ingenieros Industriales, Universidad de Castilla-La Mancha
J. Coello Instituto de Desarrollo Regional, Universidad de Castilla-La Mancha
A. Navarro Escuela de Ingenieros Industriales, Universidad de Castilla-La Mancha
A. Calatayud Escuela de Ingenieros Industriales, Universidad de Castilla-La Mancha
M. C. Manjabacas Escuela de Ingenieros Industriales, Universidad de Castilla-La Mancha

DOI:

https://doi.org/10.3989/revmetalmadrid.1007

Keywords:

Weldability, Hardox 400, Preheating, Welding postheating, Microalloyed steel

Abstract

The microalloyed steels may be supplied in a hardened state. In these cases, the weldability can be improved by pre-heat and/or post-heat welding treatments. In this paper, the effect of those treatments and the influence of multipass welding on GMAW joints behavior are analyzed for a Hardox 400 microalloyed steel. The microstructure evaluation of the different heat affected zones of the steel has been made and the mechanical properties of those zones are obtained for different conditions as it has been mentioned. The obtained results indicate that preheating the steel leads to a beneficial action that consists on the distance increasing from the bead to the zone in which the hardness is lowest. The postheat treatment strengthens that zone and improves the joint plasticity. This benefit is higher if the joint has been made with preheating. Multipass welding has not been found to have any advantage if it is compared to a single welding pass.

Downloads

Download data is not yet available.

References

[1] X-H. Xue, Y-Y. Shan, L. Zheng y S-N. Lou, Mater. Sci. Eng. A 438-440 (2006) 285-287. doi:10.1016/j.msea.2006.02.064

[2] M. Zrilic, V. Grabulov, Z. Burzic, M. Arsic y S. Sedmak, Int. J. Pres. Ves. Pip. 84 (2007) 139-150. doi:10.1016/j.ijpvp.2006.09.021

[3] R. Lagneborg, Mater. Des. 12 (1991) 3-14. doi:10.1016/0261-3069(91)90086-J

[4] P. Kulu, R. Veinthal, M. Saarna and R. Tarbe. Wear 263 (2007) 463-471. doi:10.1016/j.wear.2006.11.033

[5] H.McI.Clark y R.J. Llewellyn.Wear 250 (2001) 32-44. doi:10.1016/S0043-1648(01)00628-7

[6] SSAB, Ficha Técnica Hardox 400. 2007-04- 02. www.SSAB.com.

[7] S. Ravi, V. Balasubramanian, S. Babu y S.Nemat Nasser. Eng. Fail. Anal. 11 (2004) 619-634. doi:10.1016/j.engfailanal.2003.06.006

[8] S. Ravi,V. Balasubramanian, S. Babu y S.Nemat Nasser.Mater. Des. 25 (2004) 125-135. doi:10.1016/j.matdes.2003.09.016

[9] S. Ravi, V. Balasubramanian y S. Nemat Nasser. Int. J. Fatig. 27 (2005) 547-553. doi:10.1016/j.ijfatigue.2004.09.006

[10] Welding Handbook, Welding Technology. American Welding Society, Eight Edition, Vol. 11.991, pp. 33-34.

[11] P.R. Sreenivasan, S.K. Ray, K.G. Samuel y S.L.Manna, Eng. Fract.Mech. 42 (1992) 1.047- 1.049.

[12] T. Otarola, B. Bonnefois, M. Anglada, L. Coudreuse, y A. Mateo, Anales de Mecánica de la Fractura, Vol. II, Albarracín (Teruel, España), 2006, pp. 459-464.

[13] IIW / IIS, Welding in the World, Guidelines for the classification of ferritic steel weld metal. Vol. 24 (1986) N. 7/8, pp. 144-149.

[14] A.G. Olabi y M.S.J. Hashmi. J. Mat. Process. Tech. 55 (1995) 117-122. doi:10.1016/0924-0136(95)01794-1

[15] D. Tawfik, P.J. Mutton y W.K. Chiu. J. Mat. Process. Tech. 196 (2008) 279-291. doi:10.1016/j.jmatprotec.2007.05.055

[16] A.M. Paradowska, J.W.H. Price, R. Ibrahim, T.R. Finlayson, M.I. Ripley y R. Blevins. J. Neutron Res. 1.477-2.655, Vol. 15, Issue 3 (2007) 231-241.

[17] Z. Feng, Processes and Mechanisms of welding residual stress and distortion, Ed. Woohdhead Publishing Limited, England, (2005) p. 8.

[18] P. Nevasmaa, Ph. Doctoral Thesis, Department of Mechanical Engineering, Oulu University, (2003).