Investigations of Effects of Intermetallic Compound on the Mechanical Properties and Shape Memory Effect of Ti–Au–Ta Biomaterials
Owing to the world population aging, biomedical materials, such as shape memory alloys (SMAs) have attracted much attention. The biocompatible Ti–Au–Ta SMAs, which also possess high X–ray contrast for the applications like guidewire utilized in surgery, were studied in this work. The alloys were suc...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/19/5810 |
| _version_ | 1797516097197441024 |
|---|---|
| author | Wan-Ting Chiu Kota Fuchiwaki Akira Umise Masaki Tahara Tomonari Inamura Hideki Hosoda |
| author_facet | Wan-Ting Chiu Kota Fuchiwaki Akira Umise Masaki Tahara Tomonari Inamura Hideki Hosoda |
| author_sort | Wan-Ting Chiu |
| collection | DOAJ |
| description | Owing to the world population aging, biomedical materials, such as shape memory alloys (SMAs) have attracted much attention. The biocompatible Ti–Au–Ta SMAs, which also possess high X–ray contrast for the applications like guidewire utilized in surgery, were studied in this work. The alloys were successfully prepared by physical metallurgy techniques and the phase constituents, microstructures, chemical compositions, shape memory effect (SME), and superelasticity (SE) of the Ti–Au–Ta SMAs were also examined. The functionalities, such as SME, were revealed by the introduction of the third element Ta; in addition, obvious improvements of the alloy performances of the ternary Ti–Au–Ta alloys were confirmed while compared with that of the binary Ti–Au alloy. The Ti<sub>3</sub>Au intermetallic compound was both found crystallographically and metallographically in the Ti–4 at.% Au–30 at.% Ta alloy. The strength of the alloy was promoted by the precipitates of the Ti<sub>3</sub>Au intermetallic compound. The effects of the Ti<sub>3</sub>Au precipitates on the mechanical properties, SME, and SE were also investigated in this work. Slight shape recovery was found in the Ti–4 at.% Au–20 at.% Ta alloy during unloading of an externally applied stress. |
| first_indexed | 2024-03-10T06:56:30Z |
| format | Article |
| id | doaj.art-f6565c1ecd7447b48c618b66615a5b0d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:56:30Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-f6565c1ecd7447b48c618b66615a5b0d2023-11-22T16:27:30ZengMDPI AGMaterials1996-19442021-10-011419581010.3390/ma14195810Investigations of Effects of Intermetallic Compound on the Mechanical Properties and Shape Memory Effect of Ti–Au–Ta BiomaterialsWan-Ting Chiu0Kota Fuchiwaki1Akira Umise2Masaki Tahara3Tomonari Inamura4Hideki Hosoda5Institute of Innovative Research (IIR), Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, JapanInstitute of Innovative Research (IIR), Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, JapanInstitute of Innovative Research (IIR), Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, JapanInstitute of Innovative Research (IIR), Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, JapanInstitute of Innovative Research (IIR), Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, JapanInstitute of Innovative Research (IIR), Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, JapanOwing to the world population aging, biomedical materials, such as shape memory alloys (SMAs) have attracted much attention. The biocompatible Ti–Au–Ta SMAs, which also possess high X–ray contrast for the applications like guidewire utilized in surgery, were studied in this work. The alloys were successfully prepared by physical metallurgy techniques and the phase constituents, microstructures, chemical compositions, shape memory effect (SME), and superelasticity (SE) of the Ti–Au–Ta SMAs were also examined. The functionalities, such as SME, were revealed by the introduction of the third element Ta; in addition, obvious improvements of the alloy performances of the ternary Ti–Au–Ta alloys were confirmed while compared with that of the binary Ti–Au alloy. The Ti<sub>3</sub>Au intermetallic compound was both found crystallographically and metallographically in the Ti–4 at.% Au–30 at.% Ta alloy. The strength of the alloy was promoted by the precipitates of the Ti<sub>3</sub>Au intermetallic compound. The effects of the Ti<sub>3</sub>Au precipitates on the mechanical properties, SME, and SE were also investigated in this work. Slight shape recovery was found in the Ti–4 at.% Au–20 at.% Ta alloy during unloading of an externally applied stress.https://www.mdpi.com/1996-1944/14/19/5810biomedical materialsintermetallic compoundshape memory alloysshape memory effectTi–Au–Ta |
| spellingShingle | Wan-Ting Chiu Kota Fuchiwaki Akira Umise Masaki Tahara Tomonari Inamura Hideki Hosoda Investigations of Effects of Intermetallic Compound on the Mechanical Properties and Shape Memory Effect of Ti–Au–Ta Biomaterials Materials biomedical materials intermetallic compound shape memory alloys shape memory effect Ti–Au–Ta |
| title | Investigations of Effects of Intermetallic Compound on the Mechanical Properties and Shape Memory Effect of Ti–Au–Ta Biomaterials |
| title_full | Investigations of Effects of Intermetallic Compound on the Mechanical Properties and Shape Memory Effect of Ti–Au–Ta Biomaterials |
| title_fullStr | Investigations of Effects of Intermetallic Compound on the Mechanical Properties and Shape Memory Effect of Ti–Au–Ta Biomaterials |
| title_full_unstemmed | Investigations of Effects of Intermetallic Compound on the Mechanical Properties and Shape Memory Effect of Ti–Au–Ta Biomaterials |
| title_short | Investigations of Effects of Intermetallic Compound on the Mechanical Properties and Shape Memory Effect of Ti–Au–Ta Biomaterials |
| title_sort | investigations of effects of intermetallic compound on the mechanical properties and shape memory effect of ti au ta biomaterials |
| topic | biomedical materials intermetallic compound shape memory alloys shape memory effect Ti–Au–Ta |
| url | https://www.mdpi.com/1996-1944/14/19/5810 |
| work_keys_str_mv | AT wantingchiu investigationsofeffectsofintermetalliccompoundonthemechanicalpropertiesandshapememoryeffectoftiautabiomaterials AT kotafuchiwaki investigationsofeffectsofintermetalliccompoundonthemechanicalpropertiesandshapememoryeffectoftiautabiomaterials AT akiraumise investigationsofeffectsofintermetalliccompoundonthemechanicalpropertiesandshapememoryeffectoftiautabiomaterials AT masakitahara investigationsofeffectsofintermetalliccompoundonthemechanicalpropertiesandshapememoryeffectoftiautabiomaterials AT tomonariinamura investigationsofeffectsofintermetalliccompoundonthemechanicalpropertiesandshapememoryeffectoftiautabiomaterials AT hidekihosoda investigationsofeffectsofintermetalliccompoundonthemechanicalpropertiesandshapememoryeffectoftiautabiomaterials |