The Influence of Ultrasonic Activation on Microstructure, Phase Transformation and Mechanical Properties of Porous Ni-Ti Shape Memory Alloys via Self-Propagating High-Temperature Synthesis
Porous Ni-Ti shape memory alloys (SMAs) have been widely studied in biomedical and engineering applications. Porous Ni-Ti SMAs were obtained via self-propagating high-temperature synthesis (SHS), and their microstructure, phase transformation, and mechanical properties were investigated. This articl...
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MDPI AG
2023-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/18/6134 |
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| author | Dovchinvanchig Maashaa Enkhtsetseg Purevdagva Vasili V. Rubanik Vasili V. Rubanik |
| author_facet | Dovchinvanchig Maashaa Enkhtsetseg Purevdagva Vasili V. Rubanik Vasili V. Rubanik |
| author_sort | Dovchinvanchig Maashaa |
| collection | DOAJ |
| description | Porous Ni-Ti shape memory alloys (SMAs) have been widely studied in biomedical and engineering applications. Porous Ni-Ti SMAs were obtained via self-propagating high-temperature synthesis (SHS), and their microstructure, phase transformation, and mechanical properties were investigated. This article presents the results of a study of changes in the microstructure, phase transformation, and mechanical properties of porous Ni-Ti SMAs when Ni and Ti metal powders were preliminarily subjected to ultrasonic activation at various periods. It was determined that the porosity of the obtained alloy samples was 62–68 vol%. The microstructure was composed of the main matrix Ni-Ti phase and the accompanying Ti and Ti<sub>2</sub>-Ni phases. The results show that the hardness 34.1–86.8 HB and elastic modulus 4.2–10.8 GPa increased with an increase in the ultrasonic activation time of the samples. The phase transformation temperature of the Ni-Ti shape memory alloy remained almost unchanged under the influence of ultrasonic treatment. |
| first_indexed | 2024-03-10T22:30:57Z |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T22:30:57Z |
| publishDate | 2023-09-01 |
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| spelling | doaj.art-4d484edef3574b179b9a73af0673701c2023-11-19T11:43:21ZengMDPI AGMaterials1996-19442023-09-011618613410.3390/ma16186134The Influence of Ultrasonic Activation on Microstructure, Phase Transformation and Mechanical Properties of Porous Ni-Ti Shape Memory Alloys via Self-Propagating High-Temperature SynthesisDovchinvanchig Maashaa0Enkhtsetseg Purevdagva1Vasili V. Rubanik2Vasili V. Rubanik3Department of Physics and Mathematics, School of Applied Sciences, Mongolian University of Life Sciences, Ulaanbaatar 17024, MongoliaDepartment of Physics and Mathematics, School of Applied Sciences, Mongolian University of Life Sciences, Ulaanbaatar 17024, MongoliaInstitute of Technical Acoustics of National Academy of Science of Belarus, 210009 Vitebsk, BelarusInstitute of Technical Acoustics of National Academy of Science of Belarus, 210009 Vitebsk, BelarusPorous Ni-Ti shape memory alloys (SMAs) have been widely studied in biomedical and engineering applications. Porous Ni-Ti SMAs were obtained via self-propagating high-temperature synthesis (SHS), and their microstructure, phase transformation, and mechanical properties were investigated. This article presents the results of a study of changes in the microstructure, phase transformation, and mechanical properties of porous Ni-Ti SMAs when Ni and Ti metal powders were preliminarily subjected to ultrasonic activation at various periods. It was determined that the porosity of the obtained alloy samples was 62–68 vol%. The microstructure was composed of the main matrix Ni-Ti phase and the accompanying Ti and Ti<sub>2</sub>-Ni phases. The results show that the hardness 34.1–86.8 HB and elastic modulus 4.2–10.8 GPa increased with an increase in the ultrasonic activation time of the samples. The phase transformation temperature of the Ni-Ti shape memory alloy remained almost unchanged under the influence of ultrasonic treatment.https://www.mdpi.com/1996-1944/16/18/6134porous Ni-Ti SMAmicrostructuremechanical propertiesphase transformation |
| spellingShingle | Dovchinvanchig Maashaa Enkhtsetseg Purevdagva Vasili V. Rubanik Vasili V. Rubanik The Influence of Ultrasonic Activation on Microstructure, Phase Transformation and Mechanical Properties of Porous Ni-Ti Shape Memory Alloys via Self-Propagating High-Temperature Synthesis Materials porous Ni-Ti SMA microstructure mechanical properties phase transformation |
| title | The Influence of Ultrasonic Activation on Microstructure, Phase Transformation and Mechanical Properties of Porous Ni-Ti Shape Memory Alloys via Self-Propagating High-Temperature Synthesis |
| title_full | The Influence of Ultrasonic Activation on Microstructure, Phase Transformation and Mechanical Properties of Porous Ni-Ti Shape Memory Alloys via Self-Propagating High-Temperature Synthesis |
| title_fullStr | The Influence of Ultrasonic Activation on Microstructure, Phase Transformation and Mechanical Properties of Porous Ni-Ti Shape Memory Alloys via Self-Propagating High-Temperature Synthesis |
| title_full_unstemmed | The Influence of Ultrasonic Activation on Microstructure, Phase Transformation and Mechanical Properties of Porous Ni-Ti Shape Memory Alloys via Self-Propagating High-Temperature Synthesis |
| title_short | The Influence of Ultrasonic Activation on Microstructure, Phase Transformation and Mechanical Properties of Porous Ni-Ti Shape Memory Alloys via Self-Propagating High-Temperature Synthesis |
| title_sort | influence of ultrasonic activation on microstructure phase transformation and mechanical properties of porous ni ti shape memory alloys via self propagating high temperature synthesis |
| topic | porous Ni-Ti SMA microstructure mechanical properties phase transformation |
| url | https://www.mdpi.com/1996-1944/16/18/6134 |
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