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Effect of process parameters on the microstructure and mechanical properties of bars from Al-Cu-Mg alloy processed by multipass radial-shear rolling

  • Metals & corrosion
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Abstract

The study of microstructure and mechanical properties formation of A2024 alloy obtained by the multipass radial-shear rolling (RSR) method is discussed in this article. FEM simulation was carried out that made it possible to evaluate the influence degree of rolling temperature–velocity parameters on the strain state of material. It has been found the increase in rotary velocity of rolls significantly influences on the deformation heating of bar after RSR (predominantly in its surface layer). The combination of rolling temperature–velocity conditions at selection of deformation regime has complex effect on structure and properties formation. The analysis of sizes and distribution of phase particles has shown that the rolling at lower temperatures allowed to increase the mechanical strength due to the more intensive refinement of undissolved Fe-containing phase. The gradual decrease in the rolling temperature in each pass makes possible to achieve the high strength (UTS ~ 430 MPa and YS ~ 255 MPa) while maintaining the ductility level ~ 15%, that are comparable to ones obtained at some severe plastic deformation (SPD) methods.

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Funding

The research was carried out with the support of Russian Science Foundation (project No. 19–79-00054) (FEM, RSR, tensile tests) and federal academic leadership program Priority 2030 of NUST MISIS (structural analysis TEM, SEM).

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Authors and Affiliations

  1. National University of Science and Technology (MISIS), 4 Leninsky Pr., Moscow, Russia, 119049

    Torgom Akopyan, Yury Gamin, Sergey Galkin, Alexander Koshmin, Tatiana Kin, Vladimir Cheverikin & Alexander Aleshchenko

  2. Baikov Institute of Metallurgy and Materials Science, 49 Leninsky Pr., Moscow, Russia, 119991

    Torgom Akopyan

Authors
  1. Torgom Akopyan
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  2. Yury Gamin
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  3. Sergey Galkin
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  4. Alexander Koshmin
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  5. Tatiana Kin
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  6. Vladimir Cheverikin
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  7. Alexander Aleshchenko
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Contributions

Conceptualization was contributed by YG, TA; Methodology was contributed by SG; Formal analysis and investigation were contributed by AK, VC, TK; Writing—original draft preparation, was contributed by YG, TK, TA; Writing—review and editing, was contributed by SG, YG; Funding acquisition was contributed by YG, AK; Resources were contributed by AA; Supervision was contributed by SG, TA.

Corresponding author

Correspondence to Alexander Koshmin.

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Handling Editor: P. Nash.

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Akopyan, T., Gamin, Y., Galkin, S. et al. Effect of process parameters on the microstructure and mechanical properties of bars from Al-Cu-Mg alloy processed by multipass radial-shear rolling. J Mater Sci 57, 8298–8313 (2022). https://doi.org/10.1007/s10853-022-07167-y

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  • DOI: https://doi.org/10.1007/s10853-022-07167-y

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