Stability of Residual Stresses in Ultrasonic Surface Deep Rolling Treated Ti-6Al-4V Alloy under Cyclic Loading


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Compressive residual stresses have been found to affect fatigue crack growth behavior by delaying the crack initiation and by decelerating the crack propagation rate. Therefore, various mechanical surface treatment techniques have been developed to produce the compressive residual stresses on the surface of components. However, the residual stresses will relax due to cyclic loading. Hence, the stability of residual stress during fatigue process is a great importance aspect for design of components. In this paper, the ultrasonic surface deep rolling was used to generate the compressive residual stress near the surface of Ti-6Al-4V. The stress relaxation behavior was identified during the low cycle fatigue process. The X-ray diffraction method was used to determine the magnitude and sign of residual stress. Results showed that under cyclic loading, the residual stress relaxation occurred fast in the first few cycles then became stable. Furthermore, it was found that relaxation rates of residual stress were depended on the applied stress.



Edited by:

Prof. Xu Chen and Prof. Shan-Tung Tu




M. D. Mao and X. C. Zhang, "Stability of Residual Stresses in Ultrasonic Surface Deep Rolling Treated Ti-6Al-4V Alloy under Cyclic Loading", Applied Mechanics and Materials, Vol. 853, pp. 173-177, 2017

Online since:

September 2016




* - Corresponding Author

[1] R.K. Nalla, I. Altenberger, U. Noster, G.Y. Liu, B. Scholtes, R.O. Ritchie, On the influence of mechanical surface treatments – deep rolling and laser shock peening – on the fatigue behavior of Ti-6Al-4V at ambient and elevated temperatures, Mater. Sci. Eng. A, 355 (2003).


[2] J.J. Ruschau, R. John, S.R. Thompson, T. Nicholas, Fatigue crack nucleation and growth rate behavior of laser shock peened titanium, Int. J. Fatigue, 21 (1999) 199-209.


[3] M. Shepard, P. Smith, M. Amer, Introduction of compressive residual stresses in Ti-6Al-4V simulated airfoils via laser shock processing, J. Mater. Eng. Perform, 10 (2001) 670-678.


[4] X.C. Zhang, Y.K. Zhang, J.Z. Lu, F.Z. Xuan, Z.D. Wang, S.T. Tu, Improvement of fatigue life of Ti-6Al-4V alloy by laser shock peening, Mater. Sci. Eng. A, 527 (2010) 3411-3415.


[5] A.T. Bozdana, N.N.Z. Gindy, H. Li, Deep cold rolling with ultrasonic vibrations – a new mechanical surface enhancement technique, Int. J. Mach. Tool Manu, 45 (2005) 713-718.


[6] A.T. Bozdana, N.N.Z. Gindy, H. Li, Comparative experimental study on effects of conventional and ultrasonic deep cold rolling processes on Ti-6Al-4V, Mater. Sci. Technol, 24 (2008) 1378-1384.


[7] K. Dalaei, B. Karlsson, Influence of overloading on fatigue durability and stability of residual stresses in shot peened normalized steel, Mater. Sci. Eng. A, 528 (2011) 7323-7330.


[8] R. John, D.J. Buchanan, S.K. Jha, J.M. Larsen, Stability of shot-peen residual stresses in an α+β titanium alloy, Scripta Mater, 61 (2009) 343-346.


[9] Q. Feng, C. Jiang, Z. Xu, Residual stress relaxation of shot peened deformation surface layer on duplex stainless steel under applied loading, J. Mater. Eng. Perform, (2014) 408-412.


[10] D.J. Buchanan, R. John, Residual stress redistribution in shot peened samples subject to mechanical loading, Mater. Sci. Eng. A, 615 (2014) 70-78.