Structure, Mechanical and Physical Properties of Cu/Al–10% La Composite Produced by Rotary Forging
The influence of cold rotary forging on the mechanical properties of the Cu/Al–10% La composite, depending on the billet’s reduction ratio, has been studied. The billet was forged from an original diameter of 20 mm to a final diameter of 2.5 mm (<i>e</i> = 4.16). It is shown that the for...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/10/1755 |
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| author | Stanislav O. Rogachev Roman V. Sundeev Vladimir A. Andreev Nikolay V. Andreev Denis V. Ten Evgeniy V. Nikolaev Natalia Yu. Tabachkova Vladimir M. Khatkevich |
| author_facet | Stanislav O. Rogachev Roman V. Sundeev Vladimir A. Andreev Nikolay V. Andreev Denis V. Ten Evgeniy V. Nikolaev Natalia Yu. Tabachkova Vladimir M. Khatkevich |
| author_sort | Stanislav O. Rogachev |
| collection | DOAJ |
| description | The influence of cold rotary forging on the mechanical properties of the Cu/Al–10% La composite, depending on the billet’s reduction ratio, has been studied. The billet was forged from an original diameter of 20 mm to a final diameter of 2.5 mm (<i>e</i> = 4.16). It is shown that the formation of a predominantly subgrain structure with a high density of dislocations in a copper shell, and a predominantly ultrafine grain/subgrain structure in an aluminum rod provides an approximately two-fold increase in the strength of the composite material compared to its components. To clarify the mechanisms of deformation and fracture of the composite samples under tension, the acoustic emission technique was used. It is shown that by choosing the temperature of post-deformation annealing, it is possible to achieve the required balance between strength and plasticity of the composite samples. The electrical conductivity and coefficient of linear thermal expansion of the composite samples have been measured. |
| first_indexed | 2024-03-09T19:47:21Z |
| format | Article |
| id | doaj.art-7db27816d8cd4b81afec7a987ded3896 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T19:47:21Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-7db27816d8cd4b81afec7a987ded38962023-11-24T01:20:12ZengMDPI AGMetals2075-47012022-10-011210175510.3390/met12101755Structure, Mechanical and Physical Properties of Cu/Al–10% La Composite Produced by Rotary ForgingStanislav O. Rogachev0Roman V. Sundeev1Vladimir A. Andreev2Nikolay V. Andreev3Denis V. Ten4Evgeniy V. Nikolaev5Natalia Yu. Tabachkova6Vladimir M. Khatkevich7Department of Physical Metallurgy and Physics of Strength, National University of Science and Technology MISIS, 119049 Moscow, RussiaDepartment of Physical Metallurgy and Physics of Strength, National University of Science and Technology MISIS, 119049 Moscow, RussiaBaikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, RussiaDepartment of Physical Metallurgy and Physics of Strength, National University of Science and Technology MISIS, 119049 Moscow, RussiaDepartment of Physical Metallurgy and Physics of Strength, National University of Science and Technology MISIS, 119049 Moscow, RussiaDepartment of Physical Metallurgy and Physics of Strength, National University of Science and Technology MISIS, 119049 Moscow, RussiaDepartment of Physical Metallurgy and Physics of Strength, National University of Science and Technology MISIS, 119049 Moscow, RussiaResearch and Development Center TMK (TMK R&D), 121205 Moscow, RussiaThe influence of cold rotary forging on the mechanical properties of the Cu/Al–10% La composite, depending on the billet’s reduction ratio, has been studied. The billet was forged from an original diameter of 20 mm to a final diameter of 2.5 mm (<i>e</i> = 4.16). It is shown that the formation of a predominantly subgrain structure with a high density of dislocations in a copper shell, and a predominantly ultrafine grain/subgrain structure in an aluminum rod provides an approximately two-fold increase in the strength of the composite material compared to its components. To clarify the mechanisms of deformation and fracture of the composite samples under tension, the acoustic emission technique was used. It is shown that by choosing the temperature of post-deformation annealing, it is possible to achieve the required balance between strength and plasticity of the composite samples. The electrical conductivity and coefficient of linear thermal expansion of the composite samples have been measured.https://www.mdpi.com/2075-4701/12/10/1755severe plastic deformationsrotary forgingcopper/aluminum compositesmicrostructuremechanical propertiesfracture |
| spellingShingle | Stanislav O. Rogachev Roman V. Sundeev Vladimir A. Andreev Nikolay V. Andreev Denis V. Ten Evgeniy V. Nikolaev Natalia Yu. Tabachkova Vladimir M. Khatkevich Structure, Mechanical and Physical Properties of Cu/Al–10% La Composite Produced by Rotary Forging Metals severe plastic deformations rotary forging copper/aluminum composites microstructure mechanical properties fracture |
| title | Structure, Mechanical and Physical Properties of Cu/Al–10% La Composite Produced by Rotary Forging |
| title_full | Structure, Mechanical and Physical Properties of Cu/Al–10% La Composite Produced by Rotary Forging |
| title_fullStr | Structure, Mechanical and Physical Properties of Cu/Al–10% La Composite Produced by Rotary Forging |
| title_full_unstemmed | Structure, Mechanical and Physical Properties of Cu/Al–10% La Composite Produced by Rotary Forging |
| title_short | Structure, Mechanical and Physical Properties of Cu/Al–10% La Composite Produced by Rotary Forging |
| title_sort | structure mechanical and physical properties of cu al 10 la composite produced by rotary forging |
| topic | severe plastic deformations rotary forging copper/aluminum composites microstructure mechanical properties fracture |
| url | https://www.mdpi.com/2075-4701/12/10/1755 |
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