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Improved ductility of aged Mg-9Al-1Zn alloy strip by electropulsing treatment

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Abstract

The effect of electropulsing treatment (EPT) on the microstructure and mechanical properties of aged Mg-9Al-1Zn alloy strip was studied. EPT was found to accelerate tremendously the β phase spheroidization in the aged Mg-9Al-1Zn alloy. This improved microstructure exhibits excellent mechanical properties, that is, increasing elongation to failure significantly without loss of tensile strength. The spheroidization of the β phase during EPT was attributed to the reduction of the nucleation thermodynamic barrier and enhancement of atomic diffusion.

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References

  1. P.B. Prangnell, J.R. Bowen, and P.J. Apps: Ultra-fine grain structures in aluminium alloys by severe deformation processing. Mater. Sci. Eng., A 178, 375 (2004).

    Google Scholar 

  2. R.Z. Valiev, R.K. Islamgaliev, and I.V. Alexandrov: Bulk nanostructured materials from severe plastic deformation. Prog. Mater. Sci. 45, 103 (2000).

    CAS  Google Scholar 

  3. C. Xu, M. Furukawa, Z. Horita, and T.G. Langdon: Severe plastic deformation as a processing tool for developing superplastic metals. J. Alloys Compd. 378, 27 (2004).

    Article  CAS  Google Scholar 

  4. V.N. Chuvil’deev, T.G. Nieh, M.Y. Gryazov, A.N. Sysoev, and V.I. Kopylov: Low-temperature superplasticity and internal friction in microcrystalline Mg alloys processed by ECAP. Scr. Mater. 50, 861 (2004).

    Article  Google Scholar 

  5. B. Chen, D.L. Lin, L. Jin, X.Q. Zeng, and C. Lu: Equal-channel angular pressing of magnesium alloy AZ91 and its effects on microstructure and mechanical properties. Mater. Sci. Eng., A 483–484, 113 (2008).

    Article  Google Scholar 

  6. M.T. Perez-Prado, J.A. del Valle, and O.A. Ruano: Achieving high strength in commercial Mg cast alloys through large strain rolling. Mater. Lett. 59, 3299 (2005).

    Article  CAS  Google Scholar 

  7. M.T. Perez-Prado, J.A. Del Valle, and O.A. Ruano: Grain refinement of Mg-Al-Zn alloys via accumulative roll bonding. Scr. Mater. 51, 1093 (2004).

    Article  CAS  Google Scholar 

  8. M.T. Perez-Prado, J.A. Del Valle, J.M. Contreras, and O.A. Ruano: Microstructural evolution during large strain hot rolling of an AM60 Mg alloy. Scr. Mater. 50, 661 (2004).

    Article  CAS  Google Scholar 

  9. H. Conrad, N. Karam, and S. Mannan: Effect of electric-current pulses on the recrystallization of copper. Scr. Metall. 17, 411 (1983).

    Article  CAS  Google Scholar 

  10. H. Conrad: Effect of electric current on solid-state phase transformations in metals. Mater. Sci. Eng., A 287, 227 (2000).

    Article  Google Scholar 

  11. Z.H. Xu, G.Y. Tang, S.Q. Tian, F. Ding, and H.Y. Tian: Research of electroplastic rolling of AZ31 Mg alloy strip., J.Mater. Process. Technol. 182, 128 (2007).

    Article  CAS  Google Scholar 

  12. Y.Z. Zhou, W. Zhang, M.L. Sui, D.X. Li, G.H. He, and J.D. Guo: Formation of a nanostructure in a low-carbon steel under high current density electropulsing., J. Mater. Res. 17, 921 (2002).

    Article  CAS  Google Scholar 

  13. Y.Z. Zhou, J.D. Guo, W. Zhang, and G.H. He: Influence of electropulsing on nucleation during phase transformation. J. Mater. Res. 17, 3012 (2002).

    Article  CAS  Google Scholar 

  14. Y.Z. Zhou, W. Zhang, B.Q. Wang, and J.D. Guo: Ultrafine-grained microstructure in a Cu-Zn alloy produced by electropulsing treatment. J. Mater. Res. 18, 1991 (2003).

    Article  CAS  Google Scholar 

  15. Y.B. Jiang, G.Y. Tang, L. Guan, S.N. Wang, Z.H. Xu, C.H. Shek, and Y.H. Zhu: The effect of electropulsing treatment on the solid solution behavior of aged Mg alloy AZ61 strip. J. Mater. Res. 23, 2685 (2008).

    Article  CAS  Google Scholar 

  16. D.A. Porter and K.E. Easterling: Phase Transformations in Metals and Alloys, 2nd ed. (Chapman Hall, London, 1992), p. 68.

    Book  Google Scholar 

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Correspondence to Guoyi Tang.

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Jiang, Y., Tang, G., Shek, C. et al. Improved ductility of aged Mg-9Al-1Zn alloy strip by electropulsing treatment. Journal of Materials Research 24, 1810–1814 (2009). https://doi.org/10.1557/jmr.2009.0197

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  • DOI: https://doi.org/10.1557/jmr.2009.0197

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