Biological and Corrosion Evaluation of In Situ Alloyed NiTi Fabricated through Laser Powder Bed Fusion (LPBF)
In this work, NiTi alloy parts were fabricated using laser powder bed fusion (LBPF) from pre-alloyed NiTi powder and in situ alloyed pure Ni and Ti powders. Comparative research on the corrosive and biological properties of both studied materials was performed. Electrochemical corrosion tests were c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/22/24/13209 |
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| author | Agnieszka Chmielewska Anna Dobkowska Ewa Kijeńska-Gawrońska Michał Jakubczak Agnieszka Krawczyńska Emilia Choińska Agnieszka Jastrzębska David Dean Bartłomiej Wysocki Wojciech Święszkowski |
| author_facet | Agnieszka Chmielewska Anna Dobkowska Ewa Kijeńska-Gawrońska Michał Jakubczak Agnieszka Krawczyńska Emilia Choińska Agnieszka Jastrzębska David Dean Bartłomiej Wysocki Wojciech Święszkowski |
| author_sort | Agnieszka Chmielewska |
| collection | DOAJ |
| description | In this work, NiTi alloy parts were fabricated using laser powder bed fusion (LBPF) from pre-alloyed NiTi powder and in situ alloyed pure Ni and Ti powders. Comparative research on the corrosive and biological properties of both studied materials was performed. Electrochemical corrosion tests were carried out in phosphate buffered saline at 37 °C, and the degradation rate of the materials was described based on Ni ion release measurements. Cytotoxicity, bacterial growth, and adhesion to the surface of the fabricated coupons were evaluated using L929 cells and spherical <i>Escherichia coli</i> (<i>E. coli</i>) bacteria, respectively. The in situ alloyed NiTi parts exhibit slightly lower corrosion resistance in phosphate buffered saline solution than pre-alloyed NiTi. Moreover, the passive layer formed on in situ alloyed NiTi is weaker than the one formed on the NiTi fabricated from pre-alloyed NiTi powder. Furthermore, in situ alloyed NiTi and NiTi made from pre-alloyed powders have comparable cytotoxicity and biological properties. Overall, the research has shown that nitinol sintered using in situ alloyed pure Ni and Ti is potentially useful for biomedical applications. |
| first_indexed | 2024-03-10T03:57:32Z |
| format | Article |
| id | doaj.art-7aa667b50a1b455783f37bb4f057b7a2 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T03:57:32Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-7aa667b50a1b455783f37bb4f057b7a22023-11-23T08:42:50ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-12-0122241320910.3390/ijms222413209Biological and Corrosion Evaluation of In Situ Alloyed NiTi Fabricated through Laser Powder Bed Fusion (LPBF)Agnieszka Chmielewska0Anna Dobkowska1Ewa Kijeńska-Gawrońska2Michał Jakubczak3Agnieszka Krawczyńska4Emilia Choińska5Agnieszka Jastrzębska6David Dean7Bartłomiej Wysocki8Wojciech Święszkowski9Faculty of Material Science and Engineering, Warsaw University of Technology, Woloska 141 Str., 02-507 Warsaw, PolandFaculty of Material Science and Engineering, Warsaw University of Technology, Woloska 141 Str., 02-507 Warsaw, PolandCentre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19 Str., 02-822 Warsaw, PolandFaculty of Material Science and Engineering, Warsaw University of Technology, Woloska 141 Str., 02-507 Warsaw, PolandFaculty of Material Science and Engineering, Warsaw University of Technology, Woloska 141 Str., 02-507 Warsaw, PolandFaculty of Material Science and Engineering, Warsaw University of Technology, Woloska 141 Str., 02-507 Warsaw, PolandFaculty of Material Science and Engineering, Warsaw University of Technology, Woloska 141 Str., 02-507 Warsaw, PolandDepartment of Plastic and Reconstructive Surgery, The Ohio State University, 915 Olentangy River Rd., Columbus, OH 43212, USACentre of Digital Science and Technology, Cardinal Stefan Wyszynski University in Warsaw, Woycickiego 1/3, 01-938 Warsaw, PolandFaculty of Material Science and Engineering, Warsaw University of Technology, Woloska 141 Str., 02-507 Warsaw, PolandIn this work, NiTi alloy parts were fabricated using laser powder bed fusion (LBPF) from pre-alloyed NiTi powder and in situ alloyed pure Ni and Ti powders. Comparative research on the corrosive and biological properties of both studied materials was performed. Electrochemical corrosion tests were carried out in phosphate buffered saline at 37 °C, and the degradation rate of the materials was described based on Ni ion release measurements. Cytotoxicity, bacterial growth, and adhesion to the surface of the fabricated coupons were evaluated using L929 cells and spherical <i>Escherichia coli</i> (<i>E. coli</i>) bacteria, respectively. The in situ alloyed NiTi parts exhibit slightly lower corrosion resistance in phosphate buffered saline solution than pre-alloyed NiTi. Moreover, the passive layer formed on in situ alloyed NiTi is weaker than the one formed on the NiTi fabricated from pre-alloyed NiTi powder. Furthermore, in situ alloyed NiTi and NiTi made from pre-alloyed powders have comparable cytotoxicity and biological properties. Overall, the research has shown that nitinol sintered using in situ alloyed pure Ni and Ti is potentially useful for biomedical applications.https://www.mdpi.com/1422-0067/22/24/13209nitinol (nickel titanium)NiTilaser powder bed fusion (LBPF)corrosionion releasecytotoxicity |
| spellingShingle | Agnieszka Chmielewska Anna Dobkowska Ewa Kijeńska-Gawrońska Michał Jakubczak Agnieszka Krawczyńska Emilia Choińska Agnieszka Jastrzębska David Dean Bartłomiej Wysocki Wojciech Święszkowski Biological and Corrosion Evaluation of In Situ Alloyed NiTi Fabricated through Laser Powder Bed Fusion (LPBF) International Journal of Molecular Sciences nitinol (nickel titanium) NiTi laser powder bed fusion (LBPF) corrosion ion release cytotoxicity |
| title | Biological and Corrosion Evaluation of In Situ Alloyed NiTi Fabricated through Laser Powder Bed Fusion (LPBF) |
| title_full | Biological and Corrosion Evaluation of In Situ Alloyed NiTi Fabricated through Laser Powder Bed Fusion (LPBF) |
| title_fullStr | Biological and Corrosion Evaluation of In Situ Alloyed NiTi Fabricated through Laser Powder Bed Fusion (LPBF) |
| title_full_unstemmed | Biological and Corrosion Evaluation of In Situ Alloyed NiTi Fabricated through Laser Powder Bed Fusion (LPBF) |
| title_short | Biological and Corrosion Evaluation of In Situ Alloyed NiTi Fabricated through Laser Powder Bed Fusion (LPBF) |
| title_sort | biological and corrosion evaluation of in situ alloyed niti fabricated through laser powder bed fusion lpbf |
| topic | nitinol (nickel titanium) NiTi laser powder bed fusion (LBPF) corrosion ion release cytotoxicity |
| url | https://www.mdpi.com/1422-0067/22/24/13209 |
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