Design and Development of High-Strength and Ductile Ternary and Multicomponent Eutectoid Cu-Based Shape Memory Alloys: Problems and Perspectives
An overview is presented on the structural and phase transformations and physical and mechanical properties of those multicomponent copper-based shape memory alloys which demonstrate attractive commercial potential due to their low cost, good shape memory characteristics, ease of fabrication, and ex...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/8/1289 |
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| author | Vladimir G. Pushin Nataliya N. Kuranova Alexey E. Svirid Alexey N. Uksusnikov Yurii M. Ustyugov |
| author_facet | Vladimir G. Pushin Nataliya N. Kuranova Alexey E. Svirid Alexey N. Uksusnikov Yurii M. Ustyugov |
| author_sort | Vladimir G. Pushin |
| collection | DOAJ |
| description | An overview is presented on the structural and phase transformations and physical and mechanical properties of those multicomponent copper-based shape memory alloys which demonstrate attractive commercial potential due to their low cost, good shape memory characteristics, ease of fabrication, and excellent heat and electrical conductivity. However, their applications are very limited due to brittleness, reduced thermal stability, and mechanical strength—properties which are closely related to the microstructural features of these alloys. The efforts of the authors of this article were aimed at obtaining a favorable microstructure of alloys using new alternative methods of thermal and thermomechanical treatments. For the first time, the cyclic martensitic transformations during repeated quenching, methods of uniaxial megaplastic compression, or torsion under high pressure were successfully applied for radical size refinement of the grain structure of polycrystalline Cu-Al-Ni-based alloys with shape memory. The design of the ultra- and fine-grained structure by different methods determined (i) an unusual combination of strength and plasticity of these initially brittle alloys, both under controlled heat or hot compression or stretching, and during subsequent tensile tests at room temperature, and, as a consequence, (ii) highly reversible shape memory effects. |
| first_indexed | 2024-03-09T09:53:19Z |
| format | Article |
| id | doaj.art-dc5cc85d7d6d44cd98f04a3ac6037205 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T09:53:19Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-dc5cc85d7d6d44cd98f04a3ac60372052023-12-01T23:59:34ZengMDPI AGMetals2075-47012022-07-01128128910.3390/met12081289Design and Development of High-Strength and Ductile Ternary and Multicomponent Eutectoid Cu-Based Shape Memory Alloys: Problems and PerspectivesVladimir G. Pushin0Nataliya N. Kuranova1Alexey E. Svirid2Alexey N. Uksusnikov3Yurii M. Ustyugov4Laboratory of Non-Ferrous Alloys, M.N. Mikheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, 620108 Ekaterinburg, RussiaLaboratory of Non-Ferrous Alloys, M.N. Mikheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, 620108 Ekaterinburg, RussiaLaboratory of Non-Ferrous Alloys, M.N. Mikheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, 620108 Ekaterinburg, RussiaLaboratory of Non-Ferrous Alloys, M.N. Mikheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, 620108 Ekaterinburg, RussiaLaboratory of Non-Ferrous Alloys, M.N. Mikheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, 620108 Ekaterinburg, RussiaAn overview is presented on the structural and phase transformations and physical and mechanical properties of those multicomponent copper-based shape memory alloys which demonstrate attractive commercial potential due to their low cost, good shape memory characteristics, ease of fabrication, and excellent heat and electrical conductivity. However, their applications are very limited due to brittleness, reduced thermal stability, and mechanical strength—properties which are closely related to the microstructural features of these alloys. The efforts of the authors of this article were aimed at obtaining a favorable microstructure of alloys using new alternative methods of thermal and thermomechanical treatments. For the first time, the cyclic martensitic transformations during repeated quenching, methods of uniaxial megaplastic compression, or torsion under high pressure were successfully applied for radical size refinement of the grain structure of polycrystalline Cu-Al-Ni-based alloys with shape memory. The design of the ultra- and fine-grained structure by different methods determined (i) an unusual combination of strength and plasticity of these initially brittle alloys, both under controlled heat or hot compression or stretching, and during subsequent tensile tests at room temperature, and, as a consequence, (ii) highly reversible shape memory effects.https://www.mdpi.com/2075-4701/12/8/1289copper alloyspre-martensitic phenomenaanisotropy of elastic modulithermoelastic martensitic transformationshape memory effectphysical and mechanical properties |
| spellingShingle | Vladimir G. Pushin Nataliya N. Kuranova Alexey E. Svirid Alexey N. Uksusnikov Yurii M. Ustyugov Design and Development of High-Strength and Ductile Ternary and Multicomponent Eutectoid Cu-Based Shape Memory Alloys: Problems and Perspectives Metals copper alloys pre-martensitic phenomena anisotropy of elastic moduli thermoelastic martensitic transformation shape memory effect physical and mechanical properties |
| title | Design and Development of High-Strength and Ductile Ternary and Multicomponent Eutectoid Cu-Based Shape Memory Alloys: Problems and Perspectives |
| title_full | Design and Development of High-Strength and Ductile Ternary and Multicomponent Eutectoid Cu-Based Shape Memory Alloys: Problems and Perspectives |
| title_fullStr | Design and Development of High-Strength and Ductile Ternary and Multicomponent Eutectoid Cu-Based Shape Memory Alloys: Problems and Perspectives |
| title_full_unstemmed | Design and Development of High-Strength and Ductile Ternary and Multicomponent Eutectoid Cu-Based Shape Memory Alloys: Problems and Perspectives |
| title_short | Design and Development of High-Strength and Ductile Ternary and Multicomponent Eutectoid Cu-Based Shape Memory Alloys: Problems and Perspectives |
| title_sort | design and development of high strength and ductile ternary and multicomponent eutectoid cu based shape memory alloys problems and perspectives |
| topic | copper alloys pre-martensitic phenomena anisotropy of elastic moduli thermoelastic martensitic transformation shape memory effect physical and mechanical properties |
| url | https://www.mdpi.com/2075-4701/12/8/1289 |
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