Microstructure, Mechanical and Superelastic Properties of Ti-Zr-Nb Alloy for Biomedical Application Subjected to Equal Channel Angular Pressing and Annealing
Biomedical Ti-18Zr-15Nb (at.%) shape memory alloy was subjected to a low-temperature equal channel angular pressing (ECAP) at 200 °C for three passes and post-deformation annealing (PDA) in the 400–650 °C temperature range for 1 to 60 min. It was observed that ECAP led to the formation of an inhomog...
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MDPI AG
2022-10-01
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| Online Access: | https://www.mdpi.com/2075-4701/12/10/1672 |
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| author | Vadim Sheremetyev Mikhail Derkach Anna Churakova Aleksander Komissarov Dmitry Gunderov Georgy Raab Vladimir Cheverikin Sergey Prokoshkin Vladimir Brailovski |
| author_facet | Vadim Sheremetyev Mikhail Derkach Anna Churakova Aleksander Komissarov Dmitry Gunderov Georgy Raab Vladimir Cheverikin Sergey Prokoshkin Vladimir Brailovski |
| author_sort | Vadim Sheremetyev |
| collection | DOAJ |
| description | Biomedical Ti-18Zr-15Nb (at.%) shape memory alloy was subjected to a low-temperature equal channel angular pressing (ECAP) at 200 °C for three passes and post-deformation annealing (PDA) in the 400–650 °C temperature range for 1 to 60 min. It was observed that ECAP led to the formation of an inhomogeneous highly dislocated substructure of <i>β</i>-phase with a large number of differently oriented deformation bands containing nanograined and nano-subgrained areas. In this state, the alloy strength increased significantly, as compared to the undeformed state, but its ductility and superelasticity deteriorated appreciably. As a result of a short-term (5 min) PDA at 550–600 °C, the processes of polygonization of an entire volume of the material and recrystallization inside the deformation bands were observed. After PDA at 600 °C for 5 min, the alloy manifested a relatively high strength (<i>UTS</i> = 650 MPa), a satisfactory ductility (<i>δ</i> = 15%) and a superior superelastic behavior with a maximum superelastic recovery strain of <i>ε<sub>r</sub><sup>se</sup><sub>max</sub></i> = 3.4%. |
| first_indexed | 2024-03-09T19:47:53Z |
| format | Article |
| id | doaj.art-05d038310eab4e809363f4f7debb858c |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T19:47:53Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-05d038310eab4e809363f4f7debb858c2023-11-24T01:18:51ZengMDPI AGMetals2075-47012022-10-011210167210.3390/met12101672Microstructure, Mechanical and Superelastic Properties of Ti-Zr-Nb Alloy for Biomedical Application Subjected to Equal Channel Angular Pressing and AnnealingVadim Sheremetyev0Mikhail Derkach1Anna Churakova2Aleksander Komissarov3Dmitry Gunderov4Georgy Raab5Vladimir Cheverikin6Sergey Prokoshkin7Vladimir Brailovski8Metal Forming Department, National University of Science and Technology MISIS, 119049 Moscow, RussiaMetal Forming Department, National University of Science and Technology MISIS, 119049 Moscow, RussiaLaboratory of Nanostructured Materials Physics, Institute of Molecule and Crystal Physics, Ufa Federal Research Center RAS, 450075 Ufa, RussiaLaboratory of Hybrid Nanostructured Materials, National University of Science and Technology “MISiS”, 119049 Moscow, RussiaLaboratory of Nanostructured Materials Physics, Institute of Molecule and Crystal Physics, Ufa Federal Research Center RAS, 450075 Ufa, RussiaInstitute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12 K. Marx Str., 450008 Ufa, RussiaDepartment of Physical Metallurgy of Non-Ferrous Metals, National University of Science and Technology “MISiS”, 119049 Moscow, RussiaMetal Forming Department, National University of Science and Technology MISIS, 119049 Moscow, RussiaDepartment of Mechanical Engineering, École de Technologie Supérieure, 1100 Notre-Dame Street West, Montreal, QC H3C 1K3, CanadaBiomedical Ti-18Zr-15Nb (at.%) shape memory alloy was subjected to a low-temperature equal channel angular pressing (ECAP) at 200 °C for three passes and post-deformation annealing (PDA) in the 400–650 °C temperature range for 1 to 60 min. It was observed that ECAP led to the formation of an inhomogeneous highly dislocated substructure of <i>β</i>-phase with a large number of differently oriented deformation bands containing nanograined and nano-subgrained areas. In this state, the alloy strength increased significantly, as compared to the undeformed state, but its ductility and superelasticity deteriorated appreciably. As a result of a short-term (5 min) PDA at 550–600 °C, the processes of polygonization of an entire volume of the material and recrystallization inside the deformation bands were observed. After PDA at 600 °C for 5 min, the alloy manifested a relatively high strength (<i>UTS</i> = 650 MPa), a satisfactory ductility (<i>δ</i> = 15%) and a superior superelastic behavior with a maximum superelastic recovery strain of <i>ε<sub>r</sub><sup>se</sup><sub>max</sub></i> = 3.4%.https://www.mdpi.com/2075-4701/12/10/1672Ti-Zr-Nb shape memory alloyequal channel angular pressingannealingmicrostructuremechanical propertiesfunctional properties |
| spellingShingle | Vadim Sheremetyev Mikhail Derkach Anna Churakova Aleksander Komissarov Dmitry Gunderov Georgy Raab Vladimir Cheverikin Sergey Prokoshkin Vladimir Brailovski Microstructure, Mechanical and Superelastic Properties of Ti-Zr-Nb Alloy for Biomedical Application Subjected to Equal Channel Angular Pressing and Annealing Metals Ti-Zr-Nb shape memory alloy equal channel angular pressing annealing microstructure mechanical properties functional properties |
| title | Microstructure, Mechanical and Superelastic Properties of Ti-Zr-Nb Alloy for Biomedical Application Subjected to Equal Channel Angular Pressing and Annealing |
| title_full | Microstructure, Mechanical and Superelastic Properties of Ti-Zr-Nb Alloy for Biomedical Application Subjected to Equal Channel Angular Pressing and Annealing |
| title_fullStr | Microstructure, Mechanical and Superelastic Properties of Ti-Zr-Nb Alloy for Biomedical Application Subjected to Equal Channel Angular Pressing and Annealing |
| title_full_unstemmed | Microstructure, Mechanical and Superelastic Properties of Ti-Zr-Nb Alloy for Biomedical Application Subjected to Equal Channel Angular Pressing and Annealing |
| title_short | Microstructure, Mechanical and Superelastic Properties of Ti-Zr-Nb Alloy for Biomedical Application Subjected to Equal Channel Angular Pressing and Annealing |
| title_sort | microstructure mechanical and superelastic properties of ti zr nb alloy for biomedical application subjected to equal channel angular pressing and annealing |
| topic | Ti-Zr-Nb shape memory alloy equal channel angular pressing annealing microstructure mechanical properties functional properties |
| url | https://www.mdpi.com/2075-4701/12/10/1672 |
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