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Role of Ag addition on microstructure, mechanical properties, corrosion behavior and biocompatibility of porous Ti-30 at%Ta shape memory alloys

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
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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