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Effect of Heat Treatment on Mechanical and Microstructural Properties of the Welded Joint of the Al–Mg–Li Alloy Obtained by Laser Welding

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Journal of Applied Mechanics and Technical Physics Aims and scope

Abstract

Laser welding of the 1420 alloy of the Al–Mg–Li system is experimentally studied for the purpose of its optimization. Various modes of heat treatment of fixed joints obtained by means of laser welding are considered. Heat treatment modes that allow significant enhancement of the welded joint density as compared to the as-received alloy are chosen. The ultimate relative elongation of samples after ageing is found to decrease by a factor of 3.

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References

  1. S. Schlatter, “Improvements ofMechanical Properties in Aluminum–Lithium Alloys,” in Ruth Ted Braun Awards Writing Excellence (Sagina Valley State Univ., 2013), pp. 31–46.

    Google Scholar 

  2. R. Xiao and X. Zhang, “Problems and Issues in Laser Beam Welding of Aluminum–Lithium Alloys,” J. Manuf. Process., No. 2, 166–175 (2014).

    Article  Google Scholar 

  3. V. I. Ryazantsev and V. V. Ovchinnikov, “Cyclic Strength of Welded Joints from Aluminum Alloys,” Zagot. Pr. Mashinostr., No. 12, 10–14 (2008).

    Google Scholar 

  4. L. B. Khokhlatova, N. I. Kolobnev, M. S. Oglodkov, et al., “Aluminum–Lithium Alloys for Aircraft Industry,” Metallurg., No. 5, 31–40 (2012).

    Google Scholar 

  5. I. N. Shiganov, A. A. Kholopov, A. V. Trushnikov, et al., “Laser Welding of High-Strength Aluminium–Lithium Alloys with a Filler Wire,” Welding Int. 31, 481–486 (2017).

    Article  Google Scholar 

  6. O. Oladimeji and E. Taban, “Trend and Innovations in Laser Beam Welding of Wrought Aluminum Alloys,” Welding World 60, 415–457 (2016).

    Article  Google Scholar 

  7. V. I. Lukin, M. B. Bronfin, E. N. Ioda, et al., “Effect of Mechanical and Heat Treatment of the Aluminum–Magnesium–Lithium Alloy on its Weldability,” Avtomat. Svarka, No. 10, 46–49 (1991).

    Google Scholar 

  8. I. N. Fridlyander, L. B. Khokhlatova, N. I. Kolobnev, et al., “Development of a Thermally Stable Aluminum–Lithium Alloy 1424 to be Used in a Welded Fuselage,” Metalloved. Term. Obrab. Metallov, No. 1, 3–7 (2002).

    Google Scholar 

  9. D. E. Pedun, V. P. Poida, V. V. Bryukhovetskii, et al., “Partial Melting and High-Temperature Structural Superdactility of the AMg2M Alloy,” Vopr. Atom. Nauki Tekh., Ser. Fiz. Radiats. Povrezhd. Radiats. Materialoved., No. 5, 147–153 (2013).

    Google Scholar 

  10. A. I. Kuz’mitskaya, V. S. Poshivalov, V. P. Zhdanov, et al., “Effect of High-Rate Cooling on Physical and Mechanical Properties of the AMg6 Aluminum-Based Alloy after High-Temperature Curing,” Tekh. Mekh., No. 2, 128–136 (2016).

    Google Scholar 

  11. J. E. Hatch, Aluminum: Properties and Physical Metallurgy (ASM International, 1984).

    Google Scholar 

  12. N. I. Kolobnev, L. B. Khokhlatova, and E. Yu. Semenova, “Specific Features of Structure Formation in 1420 Alloy Sheets,” Metalloved. Tekhnol. Legkikh Splavov, No. 7, 69–80 (1990).

    Google Scholar 

  13. V. I. Lukin, B. F. Yakushin, and S. Yu. Nastich, “Investigation of Weldability of Superlight Al–Mg–Li Alloys,” Svaroch. Proizv., No. 12, 15–20 (1996).

    Google Scholar 

  14. B. D. Annin, V. M. Fomin, E. V. Karpov, et al., “Effect of Mg and Cu on Mechanical Properties of High-Strength Welded Joints of Aluminum Alloys Obtained by Laser Welding,” Prikl. Mekh. Tekh. Fiz. 58 (5), 208–217 (2017) [J. Appl. Mech. Tech. Phys. 58 (5), 939–946 (2017)].

    Google Scholar 

  15. A. G. Malikov and A. M. Orishich, “Laser Welding of the High-Strength Al–Cu–Li Alloy,” Int. J. Adv. Manuf. Technol. 94, 2217–2227 (2018).

    Article  Google Scholar 

  16. V. M. Fomin, A. G. Malikov, A. M. Orishich, et al., “Effect of Heat Treatment on the Structure of Welded Joints Made of the V-1469 Alloy of the Al–Cu–Li System Obtained by Laser Welding,” Aviats. Mater. Tekhnol., No. 1, 9–18 (2018).

    Google Scholar 

  17. I. N. Fridlaynder, V. F. Shamrai, A. A. Babareko, et al., “Effect of Heat Treatment on the Texture and Structure of the Phases of the 1420 Alloy in a Pressed Thin Airfoil and its Mechanical Properties,” Metally, No. 3, 125–130 (1996).

    Google Scholar 

  18. I. N. Fridlaynder, A. G. Bratukhin, and V. G. Davydov, “Aluminum–Lithium Alloys for Welded Aircraft Structures,” Metally, No. 3, 117–1190 (1992).

    Google Scholar 

  19. Aluminum and Its Alloys: Tutorial, Composed by A. R. Luts and A. A. Suslina (Samara State Tech. Univ., Samara, 2013) [in Russian].

  20. L. B. Zuev, “Chernov–Luders and Portevin–Le Chatelier Deformations in Active Deformable Media of Different Nature,” Prikl. Mekh. Tekh. Fiz. 58 (2), 164–171 (2017) [J. Appl. Mech. Tech. Phys. 58 (2), 328–334 (2017)].

    Google Scholar 

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Correspondence to A. M. Orishich.

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Original Russian Text © A.M. Orishich, A.G. Malikov, E.V. Karpov, N.A. Pavlov, I.S. Mesenzova.

Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 59, No. 3, pp. 203–212, May–June, 2018.

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Orishich, A.M., Malikov, A.G., Karpov, E.V. et al. Effect of Heat Treatment on Mechanical and Microstructural Properties of the Welded Joint of the Al–Mg–Li Alloy Obtained by Laser Welding. J Appl Mech Tech Phy 59, 561–568 (2018). https://doi.org/10.1134/S0021894418030215

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  • DOI: https://doi.org/10.1134/S0021894418030215

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