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Effect of Treatment Parameters on Grain Structure and Mechanical Properties of Sheets of Al – 3% Mg Alloy with Zr and Ti Additions

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Metal Science and Heat Treatment Aims and scope

The microstructure, mechanical properties and superplasticity indices of sheets of aluminum alloy Al – 3% Mg with 0.3% Zr and 0.1% Ti are studied. Use of low-temperature homogenizing (at 360°C) and two-stage hot rolling (at 360 and 420°C) with intermediate annealing at 420°C (3 h) provides quite good thermal stability of alloy grain structure and improved strength properties at room temperature. The alloy exhibits signs of superplasticity with a constant deformation rate of 5 × 10–3 sec–1 and retains a virtually unrecrystallized structure after 200% deformation.

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Notes

  1. Here and subsequently through the test alloying element content is shown in weight factions, expressed as a %.

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Work was carried out with financial support of the RF inistry of Education and Science within the scope of a VUZ state assignment (project No. 1855) and a program for improving NITU MISiS competitiveness among world scientific and education centers in 2013 – 2020.

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Authors and Affiliations

  1. National Research Technological University “MISiS”, Moscow, Russia

    A. G. Mochugovskii, A. V. Mikhailovskaya, V. S. Levchenko & V. K. Portnoi

Authors
  1. A. G. Mochugovskii
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  2. A. V. Mikhailovskaya
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  3. V. S. Levchenko
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  4. V. K. Portnoi
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Correspondence to A. G. Mochugovskii.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 33 – 37, June, 2017.

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Mochugovskii, A.G., Mikhailovskaya, A.V., Levchenko, V.S. et al. Effect of Treatment Parameters on Grain Structure and Mechanical Properties of Sheets of Al – 3% Mg Alloy with Zr and Ti Additions. Met Sci Heat Treat 59, 357–362 (2017). https://doi.org/10.1007/s11041-017-0156-3

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