Ibrahim, Mustafa Khaleel and Saud, Safaa Najah and Hamzah, Esah and Nazim, Engku Mohamad (2020) Role of Ag addition on microstructure, mechanical properties, corrosion behavior and biocompatibility of porous Ti-30 at%Ta shape memory alloys. Journal of Central South University, 27 (11). pp. 3175-3187. ISSN 2095-2899
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Official URL: http://dx.doi.org/10.1007/s11771-020-4539-z
Abstract
In the present study, the thermal, mechanical, and biological properties of xAg/Ti-30Ta (x=0, 0.41, 0.82 and 2.48 at%) shape memory alloys (SMAs) were investigated. The study was conducted using optical and scanning electron microscopy (SEM), X-ray diffractometry (XRD), compression test, and shape memory testing. The xAg/Ti-Ta was made using a powder metallurgy technique and microwave-sintering process. The results revealed that the addition of Ag has a significant effect on the pore size and shape, whereas the smallest pore size of 11 µm was found with the addition of 0.41 at% along with a relative density of 72%. The fracture stress and strain increased with the addition of Ag, reaching the minimum values around 0.41 at% Ag. Therefore, this composition showed the maximum stress and strain at fracture region. Moreover, 0.82 Ag/Ti-Ta shows more excellent corrosion resistance and biocompatibility than other percentages, obtaining almost the same behaviour of the pure Ti and Ti-6Al-4V alloys, which can be recommended for their promising and potential response for biomaterial applications.
Item Type: | Article |
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Uncontrolled Keywords: | bioactivity, microstructure characteristics |
Subjects: | T Technology > TJ Mechanical engineering and machinery |
Divisions: | Mechanical Engineering |
ID Code: | 91736 |
Deposited By: | Widya Wahid |
Deposited On: | 28 Jul 2021 08:42 |
Last Modified: | 28 Jul 2021 08:42 |
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