Relationship between the Microstructure of the Welded Steel Plates and the Efficiency of Vibration Stress Relief

Abstract:

Welded components of low alloy steels are widely used in various applications. Stress reliving is very important to these welded structures. Vibration stress relief (VSR) is an relatively new method for this purpose. In this study, Q235 and Q345 steel plates were welded. Then they were treated by VSR. The microstructure of the welded lines were investigated and the residual stresses in two directions in these welded structures were measured. The difference of the efficiency of VSR on the two materials were investigate. It is found that, the decreasing amplitude of the residual stress in the Q235 welded structures significantly exceeded that in the Q345 welded structures. The grain size in the area near the weld lines is the main factor that affects the efficiency of the VSR treatment.

• Periodical: Advanced Materials Research (Volumes 941-944)
• Pages: 2062-2065
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.941-944.2062
• Online since: June 2014
• Authors: Shu Qi Li, Hong Yuan Fang*, Xue Song Liu, Wei Cui
• Keywords: Grain Size, Q235, Q345, Vibration Stress Relief, Welding

References

[1] S. Nemat-Nasser and W.G. Guo: Mech. Mater. Vol. 35(2003), p.1023.

[2] A. Laamouri, H. Sidhom, C. Braham : Int J Fatigue. Vol. 48(2013), p.109.

[3] Biallas G: Int J Fatigue. Vol. 50(2013), pp.10-7.

[4] G. V. Boven, W. Chen, R. Rogge : Acta Mater. Vol. 55(2007), p.29.

[5] P. Sędek, J. Brózda, L. Wang : Int J Press Vessel Pip. Vol. 80(2003), p.705.

[6] Y. S. Yang, S. H. Lee : Int J Press Vessel Pip. Vol. 73(1997), p.175.

[7] J. Xu, L. Chen, C. Ni : Mater Sci Eng: A. Vol. 443(2007), p.107.

[8] A. M. Paradowska,J. W. H. Price, B. Kerezsi: Eng Fail Anal. Vol. 17(2010), p.320.

[9] S. Paddea , J. A. Francis, A.M. Paradowska : Mater Sci Eng: A. Vol. 534(2012), p.663.

[10] S. Kwofie: Mater. Sci. Eng. A-Struct. Mater. Prop. Vol. 516(2009), p.145.

[11] A. Jurcius, A.V. Valiulis and V. Kumslytis: J. Vibroeng. Vol. 10(2008), p.123.

[12] A. Munsi, A.J. Waddell and C.A. Walker: Strain Vol. 37(2001), p.141.

[13] M.C. Sun, Y.H. Sun and R.K. Wang: Mater. Lett. Vol. 58(2004), p.1396.

[14] M.C. Sun, Y.H. Sun and R.K. Wang: Mater. Lett. Vol. 58(2004), p.299.