Investigation on Microstructure and Mechanical Properties of AA 2017A FSW Joints

Investigation on Microstructure and Mechanical Properties of AA 2017A FSW Joints

Dorota Kocanda, Janusz Mierzynski, Janusz Torzewski

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Abstract. The present paper aims to analyse the microstructure, mechanical properties and fatigue behavior of FSW butt joints. The influence of welding parameters on the quality of butt welds was appreciated in the macro and micro scales on the basis of observations made by means of a confocal microscope. Mechanical properties and HCF fatigue behavior of both the AA 2017A parent material and FSW butt welded specimens were examined experimentally. Tensile properties such a yield strength, ultimate tensile strength and elongation were derived as well. The results of tensile examinations of FSW butt joints were presented in the form of stress-strain curves. On the basis of microstructure analysis and tensile strength tests carried out for FSW butt joints manufactured at few sets of process parameters the most favorable parameters of FSW process were selected. Then, HCF tests were carried out under selected FSW process parameters for the samples either made of wrought material (parent material) or its butt joints. The results of the HCF tests were displayed such as the comparative plots drawn for the AA 2017A alloy specimen and its FSW butt joints.

FSW, FSW Joints, 2017A Aluminum Alloy, Mechanical Properties

Published online 5/25/2019, 8 pages
Copyright © 2019 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Dorota Kocanda, Janusz Mierzynski, Janusz Torzewski, Investigation on Microstructure and Mechanical Properties of AA 2017A FSW Joints, Materials Research Proceedings, Vol. 12, pp 37-44, 2019


The article was published as article 5 of the book Experimental Mechanics of Solids

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

[1] J. Hirsch, Recent development in aluminium for automotive applications. Trans. Nonferrous Metals Soc. China 2014, 24, 1995–2002.
[2] P. Rambabu, N.E. Prasad, V.V. Kutumbarao, R.J.H. Wanhill, Aluminium alloys for aerospace applications. In Aerospace Materials and Material Technologies; Prasad, N.E., Wanhill, R.J.H., Eds.; Springer: Singapore, 2017; pp. 29–52.
[3] R. Rajan, P. Kah, B. Mvola et al., Trends in aluminium alloy development and their joining method, Rev. Adv. Mater. Sci., 44, (2016), 383-397.
[4] G. Cam, G. Ipekoglu, Recent development in joining of aluminium alloys, Int. J. Adv. Manuf Technol, December, 91, (2017), 1851-1816.
[5] W.M. Thomas, J.C. Nicholas, M.G. Needham, T. Smith, C.J Dawes,. Friction Stir Butt Welding. International Patent Application No. PCT/GB92/0220, December 1991
[6] R.S. Mishra, Z.Y. Ma, Friction stir welding and processing, Mater. Sci. Eng. R Rep. 50
(1–2) (2005) 1–78.
[7] H.J. Liu, H. Fujii, M. Maeda, K. Nogi, Tensile properties and fracture locations of friction-stir-welded joints of 2017-T351 aluminum alloy. J. Mater. Process. Technol. 2003, 142, 692–696.
[8] P. L. Threadgill, A. J. Leonard, H. R. Shercliff, P. J. Withers; Friction stir welding of aluminium alloys, Int Materials Reviews, vol. 54(2009), 49-93.×411136
[9] S. A. Khodir, T. Shibayanagi, M. Naka, Microstructure and mechanical properties of friction stir welded AA2024-T3 aluminium alloy, Mater. Transactions, 47,1, (2006), 185-193.
[10] P.M.G.P. Moreira, P.M.S.T de Castro, Fatigue crack growth on FSW AA2024-T3 aluminim joints, Key Engineering Materials, 498, (2012), 126-138.
[11] Xiaocong He, Fengshou Gu, A. Ball, a review of numerical analysis of friction stir welding, Progress in Materials Science, 65, (2014), 1-66.
[12] J. Schneider, R. Stromberg, P. Schilling et al., Processing effects on the friction stir weld stir zone, Welding Journal, 01, (2013), 1-9.