| Makale Türü | Özgün Makale (Diğer hakemli uluslarası dergilerde yayınlanan tam makale) | ||
| Dergi Adı | International Advanced Research Journal in Science, Engineering & Technology | ||
| Dergi ISSN | 2393-8021 | ||
| Dergi Tarandığı Indeksler | Crossref, ScienceGate, Max Planck Institute, Berlin | ||
| Makale Dili | Ingilizce | Basım Tarihi | 01-2017 |
| Cilt / Sayı / Sayfa | 4 / 1 / 64–69 | DOI | 10.17148/IARJSET.2017.4115 |
| Makale Linki | https://iarjset.com/wp-content/uploads/2017/01/IARJSET-15.pdf | ||
| UAK Araştırma Alanları |
Akıllı Malzemeler
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| Özet |
| In this study, effect of heat treatment parameters, which is applied in order to achieve superelasticity and shape memory, on the nitinol microstructure was investigated. Nitinol is a commonly used material in cardiovascular and orthopedic implant production. Nitinol material used in this study has 50.59% Ni, 0.12% C, 0.0005% Cr, 0.003% Cu, 0.001% Co, 0.012% Fe, 0.1% O,< 0.26% H andbalanceTi chemical composition (in at.%). Nitinol wires were heat treated at 540 C, 550 C, 560 C and 570 C for 10 minutes. Then, heat treatment was applied at 550 C for 8, 9, 10, 11, 12, 13 and 14 minutes. Heat treated nitinol wires were characterized by optical microscope, Energy-dispersive X-ray Spectroscopy (EDS) and mechanical tests. Results show that Ni4Ti3 phase was formed as a result of heat treatment. Heat treatment time and temperature affected amount, distribution and shapes of NiTi and Ni4Ti3 phases. Among heat treatment conditions, suitable microstructures were obtained at 540 C and 550 C heat treatment temperature and heat treatment times not exceeding 10 minutes. This finding was verified with mechanical tests. |
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