Effect of Welding on Microstructure and Mechanical Properties of an Industrial Low Carbon Steel

Zakaria Boumerzoug, Chemseddine Derfouf, Thierry Baudin

.

DOI: 10.4236/eng.2010.27066                

Abstract

In this work, the effect of arc welding on microstructures and mechanical properties of industrial low carbon steel (0.19 wt. % C) was studied. This steel is used for making gas storage cylinders. In order to realize the objective, optical microscopy, EBSD, X-ray diffraction, and hardness tests were used. Different zones and some phases are identified. New microstructural phenomenons are observed by using EBSD technique.

Keywords

Steel, Welding, HAZ, Ferrite

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	E. Bayaraktar, D. Kaplan, L. Devillers and J. P. Chevalier, “Grain Growth Mechanism during the Welding of Inter-stitial Free (IF) Steels,” Journal of Materials Processing Technology, Vol. 189, No. 1-3, 2007, pp. 114-125.
[2]	A. Güral, B. Bostan and A. T. ?zdemir, “Heat Treatment in Two Phase Region and its Effect on Welding of a Low Carbon Steel,” Materials and Design, Vol.28, No. 3, 2007, pp. 897-903.
[3]	Eroglu and M. Aksoy, “Effect of Initial Grain Size on Microstructure and Toughness,” Materials Science and Engineering A, Vol. 286, No. 2, 2000, pp. 289-297.
[4]	O. Grong and O. M. Akselsen, “HAZ Grain Growth Me-chanism in Welding of Low Carbon Microalloyed Steels,” Acta Metallurgica, Vol. 34, No. 9, 1986, pp. 1807-1815.
[5]	C. Thaulow, A. J. Paauw, A. Gunleiksrud and O. J. Naess, “Heat Affected Zone Toughness of Low Carbon Micro-alloyed Steel,” Metal Construct, Vol. 17, No. 2, 1985, pp. 94-99.
[6]	K. Ohaya, J. Kim, K. Yokoyama and M. Nagumo, “Mi-crostructures Relevant to Brittle Fracture Initiation at the Heat-affected Zone of Weldment of Low Carbon Steel,” Metallurgical and Materials Transactions A, Vol. 27, No. 9, 1996, pp. 2574-2582.
[7]	A. G. Olabi and M. J. S. Hashmi, “The Microstructure and Mechanical Properties of Low Carbon Steel Welded Components after the Application of PWHT,” Journal of Material Processing Technology, Vol. 56, No. 1-4, 1996, pp. 88-97.
[8]	E. M. Anawa and A. G. Olabi, “Using Taguchi Method to Optimize Welding Pool of Dissimilar Laser-welded Components,” Optics & Laser Technology, Vol. 40, No. 2, 2008, pp. 379-388.
[9]	S. Lars-Eric, “Control of Microstructures and Properties in Steel Arc Welds,” Library of Congress Cata-loging-in-Published Data, British, 1994.
[10]	E. Bayaraktar, “IF-steels and Weldability Research Reports Series III,” IRSID (ARCELOR) IRSID-MPM 99/20152/1, 2002.
[11]	O. Grong, “Metallurgical Modelling of Welding,” The Institute of Materials, England, 1994.
[12]	J. W. Elmer, J. Wong, T. Ressler and T. A. Palmer, 6th International Conference on Trends in Welding Research, Pine Mountain, 6A, April 2002, pp. 15-19.
[13]	G. R. Stewart, A. M. Elwazri, R. Varano, N. Pokuty-lowicz, S. Yue and J. J. Jonas, “Shear Punch Testing of Welded Pipeline Steel,” Materials Science and Engi-neering A, Vol. 420, No. 1-2, 2006, pp. 115-121.