The Study of Residual Stress in Welded Specimens of Aluminium Alloy by Using Acoustic Emission Method


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Welding is one of the most significant causes of residual stresses and typically produces large tensile stresses whose maximum value can be approximately equal to the yield strength of the materials being joined. These large tensile stresses are often responsible for premature component failure. Metallurgical welding joints are extensively used in the fabrication industry, including ships, offshore structures, steel bridge, and pressure vessels. In this study, residual stresses in welded specimens of AL–6061 were evaluated by using ACOUSTIC EMISSION method which is one of the nondestructive tests. In this work, AE signals formed during the tensile test of welded specimens were investigated. The results show that AE signals in specimens which have large amount of residual stress were detected in less load.



Edited by:

Wu Fan




Z. Saeidi Nia et al., "The Study of Residual Stress in Welded Specimens of Aluminium Alloy by Using Acoustic Emission Method", Applied Mechanics and Materials, Vols. 110-116, pp. 3617-3623, 2012

Online since:

October 2011




[1] Ravi Shankar M., 2005, Microstructure and stability of nanocrystallin aluminium 6061 created by large strain machining, ACTA materials, 53, ‏ 4781-4793.


[2] Zhang M., 2000, ‏ Improved microsructure and Properties of 6061 Aluminium Alloy Weldment Using a Double–Sided Arc Welding Process, Metallurgical and Materials Transaction, 31, 2537-2544.

[3] Chang C.M., 2007, Butt Welding Residual Stress of Heat Treatable Aluminum Alloys , SCI Technol, 23.

[4] Moreira P.M., 2007, Residual stress evaluation of a MIG welded plate using the sectioning method and drilling method.

[5] Wyatt J.E., 2007, Residual stresses in Aluminium Casting , Jornal of Materials Processing Technology, 191, 170-174.

[6] Lakshminarayanan A.K., ‏ 2009, Effect of Welding Processes on Tensile Properties of AL 6061 Aluminium Alloy Joint, ‏ Manuf Technol 40, 286-296.

[7] Mondolfo L., 1997, Aluminium Alloys–Structure and Properties, Butterworth-London.

[8] Shindo T., Effect of Pulsed Welding Current on Solidification Cracking, Trans Jpn Weld Soc, 21, 18-23.

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