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Microstructure and mechanical properties of joints welded by friction-stir welding in aluminum alloy 7075-T6 plates for aerospace application

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A Correction to this article was published on 08 November 2017

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Abstract

This paper focuses on the effect of welding parameters on microstructure and tensile strength of joints welded by friction-stir welding (FSW). The effects of pin profile (threaded conical, non-threaded conical and triangular pin), tool rotational speed (800, 1000, 1250 and 1600 r·min−1) and welding speed (63, 80, 100 and 125 mm·min−1) on the mechanical and microstructural properties of joints welded in 5-mm 7075-T6 were investigated. The results depict that the pin profile has a major role in the shape and grain size of the weld nugget zone (WNZ). In other words, a wider weld nugget and a finer grain size by threaded conical pin are obtained in WNZ. The attained data of tensile tests show that the maximum ultimate tensile strength (UTS) belongs to the threaded conical pin which is attributed to a finer grain size generated in the weld nugget zone. Additionally, it is found that the tensile strength increases with the welding speed increasing, whereas rotational speed has a bilateral effect on the tensile strength. The microhardness tests show that the minimum hardness is obtained in the heat-affected zone (HAZ).

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  • 08 November 2017

    The original version of this article was inadvertently published with incorrect references as below.

References

  1. Paidar M, Khodabandeh A, Najafi H, Sabour Rouh-aghdam A. An investigation on mechanical and metallurgical properties of 2024-T3 aluminum alloy spot friction welds. Int J Adv Manuf Technol. 2015;80(1):183.

    Article  Google Scholar 

  2. Paidar M, Khodabandeh A, Najafi H, Sabour Rouh-aghdam A. Effects of the tool rotational speed and shoulder penetration depth on mechanical properties and failure modes of friction stir spot welds of aluminum 2024-T3 sheets. J Mater Process Technol. 2014;28(12):4893.

    Google Scholar 

  3. Motalleb-nejad P, Saeid T, Heidarzadeh Darzi AKh, Ashjari M. Effect of tool pin profile on microstructure and mechanical properties of friction stir welded AZ31B magnesium alloy. Mater Des. 2014;59:221.

    Article  Google Scholar 

  4. Paidar M, Sadeghi F, Najafi HR, Khodabandeh AR. Effect of pin and shoulder geometry on stir zone and mechanical properties of friction Stir spot-welded aluminum alloy 2024-T3 sheets. J Eng Mater Technol ASME. 2015;137(3):31004.

    Article  Google Scholar 

  5. Habibnia M, Shakeri M, Nourouzi S, Besharati Givi MK. Microstructural and mechanical properties of friction stir welded 5050 Al alloy and 304 stainless steel plates. Int J Adv Manuf Technol. 2014;76(5):819.

    Google Scholar 

  6. Carlone P, Astarita A, Palazzo GS, Paradiso V, Squillace A. Microstructural aspects in Al–Cu dissimilar joining by FSW. Int J Adv Manuf Technol. 2015;79(5):1109.

    Article  Google Scholar 

  7. Guo JF, Chen HC, Sun CN, Bi G, Sun Z, Wei J. Friction stir welding of dissimilar materials between AA6061 and AA7075 Al alloys effects of process parameters. Mater Des. 2014;56:185.

    Article  Google Scholar 

  8. Sakthivel T, Sengar GS, Mukhopadhyay J. Effect of welding speed on microstructure and mechanical properties of friction-stir-welded aluminium. Int J Adv Manuf Technol. 2009;43(5):468.

    Article  Google Scholar 

  9. Jamshidi Aval H. Influences of pin profile on the mechanical and microstructural behaviors in dissimilar friction stir welded AA6082-AA7075 butt Joint. Mater Des. 2014;67:413.

    Article  Google Scholar 

  10. Zhang Z, Zhang HW. Material behaviors and mechanical features in friction stir welding process. Int J Adv Manuf Technol. 2007;35(1):86.

    Article  Google Scholar 

  11. Cavaliere P, De Santis A, Panella F, Squillace A. Effect of welding parameters on mechanical and microstructural properties of dissimilar AA6082–AA2024 joints produced by friction stir welding. Mater Des. 2009;30:609.

    Article  Google Scholar 

  12. Aydın H, Bayram A, Durgun I. The effect of post-weld heat treatment on the mechanical properties of 2024-T4 friction stir-welded joints. Mater Des. 2010;31:2568.

    Article  Google Scholar 

  13. Shamsipur A, Kashani Bozorg SF, Zarei-Hanzaki A. The effects of friction-stir process parameters on the fabrication of Ti/SiC nano-composite surface layer. Surf Coat Technol. 2011;206(6):1372.

    Article  Google Scholar 

  14. Liu H, Zhang H, Pan Q, Yu L. Effect of friction stir welding parameters on microstructural characteristics and mechanical properties of 2219-T6 aluminum alloy joints. Int J Mater Form. 2012;5(3):235.

    Article  Google Scholar 

  15. Zhao Y, Lin S, Wu L, Qu F. The influence of pin geometry on bonding and mechanical properties in friction stir weld 2014 Al alloy. Mater Lett. 2005;59(23):2948.

    Article  Google Scholar 

  16. Cavaliere P, Squillace A, Panella F. Effect of welding parameters on mechanical and microstructural properties of AA6082 joints produced by friction stir welding. J Mater Process Technol. 2008;200(3):364.

    Article  Google Scholar 

  17. Hassan AA, Prangnell PB, Norman AF, Price DA, Williams SW. Effect of welding parameters on nugget zone microstructure and properties in high strength aluminum alloy friction stir welds. Sci Technol Weld Joints. 2003;8(4):257.

    Article  Google Scholar 

  18. Al-Jarrah JA, Swalha S, Abu Mansour T, Ibrahim M, Al-Rashdan M, Al-Qahsi DA. Welding equality and mechanical properties of aluminum alloys joints prepared by friction stir welding. Mater Des. 2014;56:929.

    Article  Google Scholar 

  19. Palanivel R, Koshy Mathews P, Murugan N, Dinaharan I. Effect of tool rotational speed and pin profile on microstructure and tensile strength of dissimilar friction stir welded AA5083-H111 and AA6351-T6 aluminum alloys. Mater Des. 2012;40:7.

    Article  Google Scholar 

  20. Zhang Z, Liu HJ, Yu L. Microstructure and mechanical properties as a function of rotation speed in underwater friction stir welded aluminum alloy joints. Mater Des. 2011;32:4402.

    Article  Google Scholar 

  21. Shen Z, Yang X, Zhang Z, Cui L, Yin Y. Mechanical properties and failure mechanisms of friction stir spot welds of AA 6061-T4 sheets. Mater Des. 2013;49:181.

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Materials Engineering, University of Islamic Azad, South Tehran Branch, Tehran, 1459853849, Iran

    Moslem Paidar

  2. Department of Materials Engineering, University of Islamic Azad, Science and Research Branch, Tehran, 14515775, Iran

    Mohammad Mohammadi-pour & Alireza Khodabandeh

  3. Department of Materials Engineering, Amirkabir University of Technology, Tehran, 1387919343, Iran

    Sadegh Mohammadi-pour

Authors
  1. Mohammad Mohammadi-pour
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  2. Alireza Khodabandeh
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  3. Sadegh Mohammadi-pour
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  4. Moslem Paidar
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Correspondence to Moslem Paidar.

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A correction to this article is available online at https://doi.org/10.1007/s12598-017-0971-0.

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Mohammadi-pour, M., Khodabandeh, A., Mohammadi-pour, S. et al. Microstructure and mechanical properties of joints welded by friction-stir welding in aluminum alloy 7075-T6 plates for aerospace application. Rare Met. (2016). https://doi.org/10.1007/s12598-016-0692-9

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  • DOI: https://doi.org/10.1007/s12598-016-0692-9

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