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High cycle fatigue behaviour of thin sheet joints of aluminium-lithium alloys under constant and variable amplitude loading

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Abstract

The main purpose of this work is to establish high cyclic fatigue behaviour of sound welds of aluminium alloys of Al-Mg-Li and Al-Cu-Li doping system under constant and variable amplitude loading. Sound welds of thin sheet (1.8 and 2.0 mm) aluminium-lithium alloys 1420 and 1460 were produced by tungsten inert gas (TIG) and friction stir welding (FSW) technologies. Microstructure investigations, hardness and residual stress measurements, tensile and fatigue tests of welds were performed. It is shown that FSW joints have fine grain microstructure in weld nugget with homogeneous disoriented structure and elongation and deviation of grains in a direction of plasticized metal movement, taken place in adjacent areas. Hardness on joints face was measured, showing areas of softening near the weld. Lower temperature of welded edges heating reduces the maximum level of longitudinal residual tensile stresses in FSW joints in comparison with TIG welds. Tensile strengths of TIG and FSW joints were obtained. The high cycle fatigue tests of FSW and TIG joints under constant and variable amplitude loading were performed. It is shown that fatigue behaviour of FSW joints exceeds the characteristics of the joints obtained by TIG welding.

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References

  1. Beletskiy VM, Krivov GA (2005) Alyuminiyevyye splavy (Sostav, svoystva, tekhnologiya, primeneniye). KOMINTEKH, Kyiv

    Google Scholar 

  2. Kablov EN (2002) Aviatsionnyye materialy. Izbrannyye trudy «VIAM» 1932-2002. Yubileynyy nauchno-tekhnicheskiy sbornik. MISIS «VIAM», Moscow, pp. 198-220

  3. Lukianenko A, Labur TM, Pokliatskyi AG, Motrunich S, Bajic D (2019) Investigation of fatigue strength and norms of emission of harmful substances in the air during MIG and TIG welding of 1460 aluminum-lithium alloy. FME Trans 47:608–612

    Article  Google Scholar 

  4. Ishchenko AY, Labur TM (2005) Svarka sovremennykh konstruktsiy iz alyuminiyevykh splavov (Welding of modern aluminum structures). Naukova Dumka, Kiyv

    Google Scholar 

  5. Rabkin DM, Lozovskaya AV, Sklabinskaya IY (1992) Metallovedeniye svarki alyuminiya i yego splavov (Metallurgy of welds of aluminum and its alloys). Naukova Dumka, Kiyv ISBN 5-12-002022-4

    Google Scholar 

  6. Thomas WM, Nicholas ED, Needham JC et al. (1991) Int. Patent Application №PCT/GB 92/02203; GB Patent Application №9125978.8. Friction stir butt welding

  7. Defalco J (2006) Friction stir welding vs fusion welding. Weld J 85(3):42–44

    CAS  Google Scholar 

  8. Enomoto M (2003) Friction stir welding: research and industrial applications. Weld Int 5:341–345

    Article  Google Scholar 

  9. Poklaytsky AG, Klochkov IN, Motrunich SІ (2014) Structure and properties of AMg2M alloy joints made by argon nonconsumable–arc welding and friction stir welding. Appl Mech Mater 682:166–169

    Article  CAS  Google Scholar 

  10. Krasnowski K, Dymek S, Hamilton C (2015) Influence of the tool shape and weld configuration on microstructure and mechanical properties of the Al 6082 alloy FSW joints. Arch Civil Mech Eng 15:133–141

    Article  Google Scholar 

  11. Aval (2015) Microstructure and residual stress distributions in friction stir welding of dissimilar aluminium alloys. Mater Des 87:405–413

  12. Rai R et al (2013) Review: friction stir welding tools. STJW 16:325–342

    Google Scholar 

  13. Steuwer et al. (2006) Dissimilar friction stir welds in AA5083–AA6082: the effect of process parameters on residual stress, Mater Sci Eng A, 441:187–196

  14. Jonckheere et al (2013) Torque, temperature and hardening precipitation evolution in dissimilar friction stir welds between 6061-T6 and 2014-T6 aluminium alloys J. Mater Process Technol 213:826–837

    Article  CAS  Google Scholar 

  15. da Silva et al (2011) Material flow and mechanical behaviour of dissimilar AA2024-T3 and AA7075-T6 aluminium alloys friction stir welds. Mater Des 32:2021–2027

    Article  Google Scholar 

  16. Gurney TR (1968) Fatigue of welded structures. Cambridge University Press, Cambridge

    Google Scholar 

  17. Ericsson M, Sandstrom R (2003) Influence of melding speed on the fatigue of friction stir welds, and comparison with MIG and TIG. Int J Fatigue 25:1379–1387

    Article  CAS  Google Scholar 

  18. Krasnowski K, Dymek S (2013) A comparative analysis of the impact of tool design to fatigue behavior of single-sided and double-sided welded butt joints of EN AW 6082-T6 alloy. J Mater Eng Perform 22(12):3818–3824

    Article  CAS  Google Scholar 

  19. Uthayakumar M, Balasubramanian V, Rani AMA, Hadzima B (2018) Effects of welding on the fatigue behaviour of commercial aluminum AA-1100 joints. IOP Conf Ser Mater Sci Eng 346(1):012065. https://doi.org/10.1088/1757-899X/346/1/012065

    Article  Google Scholar 

  20. Macdonald KA et al (2011) Fracture and fatigue of welded joints and structures. Woodhead Publishing Limited, Cambridge

    Book  Google Scholar 

  21. Mikheevskiy S, Glinka G, Cordes T (2015) Total life approach for fatigue life estimation of welded structures. Procedia Eng 101:177–184

    Article  Google Scholar 

  22. Moreiraa PMGP, de Jesus MP, de Figueiredo MAV, Windisch M, Sinnema G, de Castro PMST (2012) Fatigue and fracture behaviour of friction stir welded aluminium–lithium 2195. Theor Appl Fract Mec 60:1–9

    Article  Google Scholar 

  23. Ma YE, Xia ZC, Jiang RR, Ya LW (2013) Effect of welding parameters on mechanical and fatigue properties of friction stir welded 2198 T8 aluminum–lithium alloy joints. J Eng Fract Mech 114:1–11

    Article  Google Scholar 

  24. Klochkov I, Poklaytsky A, Motrunich S (2019) Fatigue behavior of high strength Al-Cu-Mg and Al-Cu-Li alloys joints obtained by fusion and solid state welding technologies. J Theor Appl Mech 49:179–189

    Article  Google Scholar 

  25. Ishchenko AY, Poklyatśkyy AH (2010) Pat. 54096 Ukraine, MPK V23K 20/12. Instrument dlya zvaryuvannya tertyam z peremishuvannyam alyuminiyevykh splaviv. Zayavnyk i patentovlasnyk IEZ im. YE.O. Patona NAS of Ukraine, № u201005315; zayav. 30.04.2010, Byul. №20

  26. Sonsino CM (2007) Fatigue testing under variable amplitude loading. Int J Fatigue 29:1080–1089

    Article  CAS  Google Scholar 

  27. Tebedge N, Alpsten G, Tall L (1973) Residual-stress measurement by the sectioning method. Exp Mech 13:88–96

    Article  Google Scholar 

  28. Montanari R, Fava A, Barbieri G (2017) Experimental techniques to investigate residual stress in joints. In: Ferro P (ed) Residual stress analysis on welded joints by means of numerical simulation and experiments. IntechOpen. doi: 10.5772/intechopen.71564. Available via IntechOpen. https://www.intechopen.com/books/residual-stress-analysis-on-welded-joints-by-means-of-numerical-simulation-and-experiments/experimental-techniques-to-investigate-residual-stress-in-joints. Accessed 08 Aug 2020

  29. Moltasov A (2017) A study of the stress state in stress concentration zones under tension of an asymmetrically reinforced butt-welded joint. Strength Mater 49(5):718–725

    Article  CAS  Google Scholar 

  30. Hobbacher A (2008) Recommendations for fatigue design of welded joints and components. International Institute of Welding, doc. XIII-2151r4-07/XV-1254r4-07:149

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Acknowledgements

The work was carried out within the framework of the departmental order programme of the National Academy of Sciences of Ukraine by E.O. Paton Electric Welding Institute (basic research no.6541230) titled “Supporting Development of the Priority Research Areas”.

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  1. E.O. Paton Electric Welding Institute of the National Academy of Science of Ukraine, 11 Kazymyr Malevich St., Kyiv, 03150, Ukraine

    Sviatoslav Motrunich, Illia Klochkov & Anatoliy Poklaytsky

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  1. Sviatoslav Motrunich
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  2. Illia Klochkov
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  3. Anatoliy Poklaytsky
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Correspondence to Sviatoslav Motrunich.

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Motrunich, S., Klochkov, I. & Poklaytsky, A. High cycle fatigue behaviour of thin sheet joints of aluminium-lithium alloys under constant and variable amplitude loading. Weld World 64, 1971–1979 (2020). https://doi.org/10.1007/s40194-020-00976-2

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  • DOI: https://doi.org/10.1007/s40194-020-00976-2

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