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Process optimization and microstructural development during superplastic-like forming of AA5083


An advanced sheet forming process was utilized by combining hot drawing and blow forming to establish a fast forming technology. As a continuation of the development in superplastic-like forming, this study dealt with the process optimization and evaluation of post-forming properties. Aluminum alloy 5083 (AA5083) parts with near-net shape were successfully fabricated at 400 °C. Thickness uniformity has been improved by optimizing the mechanical preforming (hot drawing) and adopting a strain-rate-control gas forming (blow forming). Fairly uniform microstructure can be achieved with this forming process. To investigate the microstructural information, the annealed and hot deformed samples were characterized using electron backscatter diffraction technique. Fine grains with high-angle grain boundaries occurred near the elongated grains during hot drawing stage as a result of dynamic recrystallization. Subgrain structure was also examined by characterizing the distribution of grain boundary misorientation angles. Grain growth and subgrain boundary migration were two main microstructural features observed during the gas forming stage.

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  1. 1.

    Liu J, Tan MJ, Aue-u-lan Y, Jarfors AEW, Fong KS, Castagne S (2011) Superplastic-like forming of non-superplastic AA5083 combined with mechanical pre-forming. Int J Adv Manuf Tech 52:123–129

  2. 2.

    Barnes AJ (2007) Superplastic forming 40 years and still growing. J Mater Eng Perform 16:440–454

  3. 3.

    Verma R, Friedman PA, Ghosh AK, Kim S, Kim C (1996) Characterization of superplastic deformation behavior of a fine grain 5083 Al alloy sheet. Metall Mater Trans A 27A:1889–1898

  4. 4.

    Nieh TG, Wadsworth J, Sherby OD (1997) Superplasticity in metals and ceramics. Cambridge University Press, Cambridge

  5. 5.

    Edington JW, Melton KN, Cutler CP (1976) Superplasticity. Prog Mater Sci 21:61–170

  6. 6.

    Hefti L (2007) Commercial airplane applications of superplastically formed AA5083 aluminum sheet. J Mater Eng Perform 16:136–141

  7. 7.

    Verma R, Friedman P, Ghosh A, Kim C, Kim S (1995) Superplastic forming characteristics of fine-grained 5083 aluminum. J Mater Eng Perform 4:543–550

  8. 8.

    Liu J, Tan MJ, Jarfors AEW, Aue-u-lan Y, Castagne S (2010) Formability in AA5083 and AA6061 alloys for light weight applications. Mater Design 31:S66–S70

  9. 9.

    ASTM (2009) Standard guide for electrolytic polishing of metallographic specimens. ASTM International, West Conshohocken

  10. 10.

    HKL (2010) Channel 5. Oxford Instruments, Oxford

  11. 11.

    Liu J, Edberg J, Tan MJ, Lindgren LE, Castagne S, Jarfors AEW (2013) Finite element modelling of superplastic-like forming using a dislocation density-based model for AA5083. Modell Simul Mater Sci Eng 21:025006

  12. 12.

    Liu FC, Xue P, Ma ZY (2012) Microstructural evolution in recrystallized and unrecrystallized Al–Mg–Sc alloys during superplastic deformation. Mater Sci Eng, A 547:55–63

  13. 13.

    Mackenzie JK (1958) Second paper on statistics associated with the random disorientation of cubes. Biometrika 45:229–240

  14. 14.

    Humphreys FJ, Hatherly M (2004) Recrystallization and related annealing phenomena. Elsevier, Oxford

  15. 15.

    Exell SF, Warrington DH (1972) Sub-grain boundary migration in aluminium. Philos Mag 26:1121–1136

  16. 16.

    Blum W, Zhu Q, Merkel R, McQueen HJ (1996) Geometric dynamic recrystallization in hot torsion of Al-5Mg-0.6Mn (AA5083). Mater Sci Eng, A 205:23–30

  17. 17.

    McQueen HJ, Kassner ME (2004) Comments on ‘a model of continuous dynamic recrystallization’ proposed for aluminum. Scripta Mater 51:461–465

  18. 18.

    Alvi MH, Cheong SW, Suni JP, Weiland H, Rollett AD (2008) Cube texture in hot-rolled aluminum alloy 1050 (AA1050)—nucleation and growth behavior. Acta Mater 56:3098–3108

  19. 19.

    Hansen N (1977) The effect of grain size and strain on the tensile flow stress of aluminium at room temperature. Acta Metall 25:863–869

  20. 20.

    Raj SV, Pharr GM (1986) A compilation and analysis of data for the stress dependence of the subgrain size. Mater Sci Eng 81:217–237

  21. 21.

    Castro-Fernáandeza FR, Sellarsb CM (1989) Relationship between room-temperature proof stress, dislocation density and subgrain size. Philos Mag A 60:487–506

  22. 22.

    Randle V, Engler O (2000) Introduction to texture analysis: macrotexture, microtexture and orientation mapping. CRC, Boca Raton

  23. 23.

    Bate P, Oscarsson A (1990) Deformation banding and texture in hot rolled Al-1.0Mn-1.2Mg alloy. Mater Sci Tech 6:520–527

  24. 24.

    Edington J (1982) Microstructural aspects of superplasticity. Metall Mater Trans A 13:703–715

  25. 25.

    Hjelen J, Ørsund R, Nes E (1991) On the origin of recrystallization textures in aluminium. Acta Metall Mater 39:1377–1404

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Correspondence to Ming-Jen Tan.

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Liu, J., Tan, M., Lim, C.S. et al. Process optimization and microstructural development during superplastic-like forming of AA5083. Int J Adv Manuf Technol 69, 2415–2422 (2013).

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  • Aluminum
  • Microstructure
  • Texture
  • EBSD
  • Sheet forming
  • Hot drawing