Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr Alloys
The compression tests in a temperature range of 400–540 °C and strain rates of 0.1–15 s<sup>−1</sup> were applied to novel Al-Cu-Y(Er)-Mg-Mn-Zr alloys to investigate their hot deformation behavior. The higher volume fraction of the intermetallic particles with a size of 0.5–4 µm in the a...
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MDPI AG
2021-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/10/1521 |
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| author | Maxim G. Khomutov Sayed M. Amer Ruslan Yu. Barkov Maria V. Glavatskikh Alexander Yu. Churyumov Andrey V. Pozdniakov |
| author_facet | Maxim G. Khomutov Sayed M. Amer Ruslan Yu. Barkov Maria V. Glavatskikh Alexander Yu. Churyumov Andrey V. Pozdniakov |
| author_sort | Maxim G. Khomutov |
| collection | DOAJ |
| description | The compression tests in a temperature range of 400–540 °C and strain rates of 0.1–15 s<sup>−1</sup> were applied to novel Al-Cu-Y(Er)-Mg-Mn-Zr alloys to investigate their hot deformation behavior. The higher volume fraction of the intermetallic particles with a size of 0.5–4 µm in the alloys caused an increase in flow stress. Hyperbolic sine law constitutive models were constructed for the hot deformation behavior of Al-Cu-Y(Er)-Mg-Mn-Zr alloys. Effective activation energy has a higher value in the alloys with Er than in the alloys with Y. According to the processing maps, the temperature range of 420–480 °C and strain rates higher than 5 s<sup>−1</sup> are the most unfavorable region for hot deformation for the investigated alloys. The deformation at 440 °C and 15 s<sup>−1</sup> led to cracks on the surface of the sample. However, internal cracks were not observed in the microstructure after deformation. The optimum hot deformation temperatures were in a range of 500–540 °C and at strain rates of 0.1–15 s<sup>−1</sup>. |
| first_indexed | 2024-03-10T06:22:45Z |
| format | Article |
| id | doaj.art-2721d8611e184ba382171dd4e2017c27 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T06:22:45Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-2721d8611e184ba382171dd4e2017c272023-11-22T19:08:06ZengMDPI AGMetals2075-47012021-09-011110152110.3390/met11101521Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr AlloysMaxim G. Khomutov0Sayed M. Amer1Ruslan Yu. Barkov2Maria V. Glavatskikh3Alexander Yu. Churyumov4Andrey V. Pozdniakov5Department of Physical Metallurgy of Non-Ferrous Metals, National University of Science and Technology “MISiS”, Leninskiy Prospekt 4, 119991 Moscow, RussiaDepartment of Physical Metallurgy of Non-Ferrous Metals, National University of Science and Technology “MISiS”, Leninskiy Prospekt 4, 119991 Moscow, RussiaDepartment of Physical Metallurgy of Non-Ferrous Metals, National University of Science and Technology “MISiS”, Leninskiy Prospekt 4, 119991 Moscow, RussiaDepartment of Physical Metallurgy of Non-Ferrous Metals, National University of Science and Technology “MISiS”, Leninskiy Prospekt 4, 119991 Moscow, RussiaDepartment of Physical Metallurgy of Non-Ferrous Metals, National University of Science and Technology “MISiS”, Leninskiy Prospekt 4, 119991 Moscow, RussiaDepartment of Physical Metallurgy of Non-Ferrous Metals, National University of Science and Technology “MISiS”, Leninskiy Prospekt 4, 119991 Moscow, RussiaThe compression tests in a temperature range of 400–540 °C and strain rates of 0.1–15 s<sup>−1</sup> were applied to novel Al-Cu-Y(Er)-Mg-Mn-Zr alloys to investigate their hot deformation behavior. The higher volume fraction of the intermetallic particles with a size of 0.5–4 µm in the alloys caused an increase in flow stress. Hyperbolic sine law constitutive models were constructed for the hot deformation behavior of Al-Cu-Y(Er)-Mg-Mn-Zr alloys. Effective activation energy has a higher value in the alloys with Er than in the alloys with Y. According to the processing maps, the temperature range of 420–480 °C and strain rates higher than 5 s<sup>−1</sup> are the most unfavorable region for hot deformation for the investigated alloys. The deformation at 440 °C and 15 s<sup>−1</sup> led to cracks on the surface of the sample. However, internal cracks were not observed in the microstructure after deformation. The optimum hot deformation temperatures were in a range of 500–540 °C and at strain rates of 0.1–15 s<sup>−1</sup>.https://www.mdpi.com/2075-4701/11/10/1521aluminum alloyserbiumyttriumhot deformation behaviorconstitutive modelingprocessing maps |
| spellingShingle | Maxim G. Khomutov Sayed M. Amer Ruslan Yu. Barkov Maria V. Glavatskikh Alexander Yu. Churyumov Andrey V. Pozdniakov Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr Alloys Metals aluminum alloys erbium yttrium hot deformation behavior constitutive modeling processing maps |
| title | Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr Alloys |
| title_full | Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr Alloys |
| title_fullStr | Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr Alloys |
| title_full_unstemmed | Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr Alloys |
| title_short | Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr Alloys |
| title_sort | hot deformation behavior of novel al cu y er mg mn zr alloys |
| topic | aluminum alloys erbium yttrium hot deformation behavior constitutive modeling processing maps |
| url | https://www.mdpi.com/2075-4701/11/10/1521 |
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