Skip to main content
SpringerLink
Log in

Peculiarities of the Rheological Behavior for the Al-Mg-Sc-Zr Alloy Under High-Temperature Deformation

  • Published:
Journal of Materials Engineering and Performance Aims and scope Submit manuscript

Abstract

The paper deals with a peculiar rheological behavior of the Al-Mg-Sc-Zr alloy at deformation temperatures of 330 and 360 °C and a strain rate of 0.05 s−1. It has been found that the strain resistance curve for this material consists of several portions. First there is material hardening, then softening, and again hardening. The application of the electron backscatter diffraction technique and transmission electron microscopy has elucidated that in-situ recrystallization is the main process of softening at the temperatures studied. The appearance of the second portion of hardening on the strain resistance curve results from inhibited in-situ recrystallization. At the deformation temperature of 330 °C, as distinct from the temperature of 360 °C, a small number of grains are formed on the boundaries of original grains because of insufficiently active dynamic polygonization. The presence of abounding intermetallics in the microstructure causes the development of the barrier effect of blocking free dislocations, grain and subgrain boundaries by intermetallics, thus enhancing material hardening.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11

Similar content being viewed by others

References

  1. V.G. Davydov, T.D. Rostova, V.V. Zakharov, Y.A. Filatov, and V.I. Yelagin, Scientific Principles of Making an Alloying Addition of Scandium to Aluminium Alloys, Mater. Sci. Eng. A, 2000, 280(1), p 30–36

    Article  Google Scholar 

  2. V. Singh, K.S. Prasad, and A.A. Gokhale, Microstructure and Age Hardening Response of Cast Al-Mg-Sc-Zr Alloys, J. Mater. Sci., 2004, 39(8), p 2861–2864

    Article  Google Scholar 

  3. A.V. Konovalov and A.S. Smirnov, Viscoplastic Model for the Strain Resistance of 08Kh18N10T Steel at a Hot-Deformation Temperature, Russ. Metall., 2008, 2, p 138–141

    Article  Google Scholar 

  4. Y.C. Lin and X.-M. Chen, A Critical Review of Experimental Results and Constitutive Descriptions for Metals and Alloys in Hot Working, Mater. Des., 2011, 32(4), p 1733–1759

    Article  Google Scholar 

  5. A. Momeni, G.R. Ebrahimi, M. Jahazi, and P. Bocher, Microstructure Evolution at the Onset of Discontinuous Dynamic Recrystallization: A Physics-Based Model of Subgrain Critical Size, J. Alloys Compd., 2014, 587, p 199–210

    Article  Google Scholar 

  6. A.R. Eivani, J. Zhou, and J. Duszczyk, Numerical Modeling of Subgrain Growth of Hot Extruded Al-4.5Zn-1Mg Alloy in the Presence of Nanosized Dispersoids, Comput. Mater. Sci., 2014, 86, p 9–16

    Article  Google Scholar 

  7. I. Schindler, P. Kawulok, E. Hadasik, and D. Kuc, Activation Energy in Hot Forming and Recrystallization Models for Magnesium Alloy AZ31, J. Mater. Eng. Perform., 2013, 22(3), p 890–897

    Article  Google Scholar 

  8. K. Ihara and Y. Miura, Dynamic Recrystallization in Al-Mg-Sc Alloys, Mater. Sci. Eng. A, 2004, 387-389, p 647–650

    Article  Google Scholar 

  9. R. Kaibyshev, E. Avtokratova, A. Apollonov, and R. Davies, High Strain Rate Superplasticity in an Al-Mg-Sc-Zr Alloy Subjected to Simple Thermomechanical Processing, Scr. Mater., 2006, 54(12), p 2119–2124

    Article  Google Scholar 

  10. H. Akamatsu, T. Fujinami, Z. Horita, and T.G. Langdon, Influence of Rolling on the Superplastic Behavior of an Al-Mg-Sc Alloy After ECAP, Scr. Mater., 2001, 44(5), p 759–764

    Article  Google Scholar 

  11. O. Sitdikov, T. Sakai, E. Avtokratova, R. Kaibyshev, Y. Kimura, and K. Tsuzaki, Grain Refinement in a Commercial Al-Mg-Sc Alloy Under Hot ECAP Conditions, Mater. Sci. Eng. A, 2007, 444(1-2), p 18–30

    Article  Google Scholar 

  12. O. Sitdikov, T. Sakai, E. Avtokratova, R. Kaibyshev, K. Tsuzaki, and Y. Watanabe, Microstructure Behavior of Al-Mg-Sc Alloy Processed by ECAP at Elevated Temperature, Acta Mater., 2008, 56(4), p 821–834

    Article  Google Scholar 

  13. D. Zhemchuzhnikova, A. Mogucheva, and R. Kaibyshev, Mechanical Properties and Fracture Behavior of an Al-Mg-Sc-Zr Alloy at Ambient and Subzero Temperatures, Mater. Sci. Eng. A, 2013, 565, p 132–141

    Article  Google Scholar 

  14. E. Avtokratova, O. Sitdikov, M. Markushev, and R. Mulyukov, Extraordinary High-Strain Rate Superplasticity of Severely Deformed Al-Mg-Sc-Zr Alloy, Mater. Sci. Eng. A, 2012, 538, p 386–390

    Article  Google Scholar 

  15. F. Musin, R. Kaibyshev, Y. Motohashi, and G. Itoh, High Strain Rate Superplasticity in a Commercial Al-Mg-Sc Alloy, Scr. Mater., 2004, 50(4), p 511–516

    Article  Google Scholar 

  16. K. Verbeken, N. Van Caenegem, and D. Raabe, Identification of Epsilon Martensite in a Fe-Based Shape Memory Alloy by Means of EBSD, Micron, 2009, 40(1), p 151–156

    Article  Google Scholar 

  17. S. Dziaszyk, E.J. Payton, F. Friedel, V. Marx, and G. Eggeler, On the Characterization of Recrystallized Fraction Using Electron Backscatter Diffraction: A Direct Comparison to Local Hardness in an IF Steel Using Nanoindentation, Mater. Sci. Eng. A, 2010, 527(29-30), p 7854–7864

    Article  Google Scholar 

Download references

Acknowledgments

The work was partially financially supported by the grant of RFBR (project No 14-08-31262) and the Program of UB RAS (project No 12-T-1-1010).

Author information

Authors and Affiliations

  1. Institute of Engineering Science, Russian Academy of Science (Ural Branch), 34 Komsomolskaya Str., 620049, Ekaterinburg, Russia

    A. S. Smirnov & A. V. Konovalov

  2. Institute of Metal Physics, Russian Academy of Science (Ural Branch), 18 Sofia Kovalevskaya Str., 620990, Ekaterinburg, Russia

    V. G. Pushin & A. N. Uksusnikov

  3. Academician V.P.Makeyev State Rocket Center, 1 Turgoyakskoye Shosse Str., 456300, Miass, Chelyabinskaya Oblast, Russia

    A. A. Zvonkov & I. M. Zajcev

Authors
  1. A. S. Smirnov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. V. Konovalov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V. G. Pushin
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. N. Uksusnikov
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. A. A. Zvonkov
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. I. M. Zajcev
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. S. Smirnov.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Smirnov, A.S., Konovalov, A.V., Pushin, V.G. et al. Peculiarities of the Rheological Behavior for the Al-Mg-Sc-Zr Alloy Under High-Temperature Deformation. J. of Materi Eng and Perform 23, 4271–4277 (2014). https://doi.org/10.1007/s11665-014-1211-5

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11665-014-1211-5

Keywords

Search

Navigation