ArticleNanomaterials (Basel, Switzerland)2019
Ion Release and Surface Characterization of Nanostructured Nitinol during Long-Term Testing.
Article in Nanomaterials (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 40 citations in OpenAlex.
- Nanotopography Evaluation of NiTi Alloy Exposed to Artificial Saliva and Different Mouthwashes.Materials (Basel, Switzerland) · 2022Article
- Biological and Corrosion Evaluation of In Situ Alloyed NiTi Fabricated through Laser Powder Bed Fusion (LPBF).International journal of molecular sciences · 2021Article
- Obtaining a Wire of Biocompatible Superelastic Alloy Ti-28Nb-5Zr.Materials (Basel, Switzerland) · 2020Article
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Authors and funding
5 authors at 1 institution in 1 country.
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Abstract
The corrosion resistance of nanostructured nitinol (NiTi) was investigated using long-term tests in solutions simulating physiological fluids at static conditions, reflecting the material structure and metal concentration in the solutions. Mechanical polishing reduced the ion release by a factor of two to three, whereas annealing deteriorated the corrosion resistance. The depassivation and repassivation of nitinol surfaces were considered. We found that nanostructured nitinol might increase the corrosion leaching of titanium into solutions, although the nickel release decreased. Metal dissolution did not occur in the alkaline environment or artificial plasma. A Ni-free surface with a protective 25 nm-thick titanium oxide film resulted from soaking mechanically treated samples of the NiTi wire in a saline solution for two years under static conditions. Hence, the medical application of nanostructured NiTi, such as for the production of medical devices and implants such as stents, shows potential compared with microstructured NiTi.
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