Effects of Sn content on the microstructure, mechanical properties and biocompatibility of Ti–Nb–Sn/hydroxyapatite biocomposites synthesized by powder metallurgy

Wang, Xiaopeng; Chen, Yuyong; Xu, Lijuan; Liu, Zhiguang; Woo, Kee-Do

doi:10.1016/j.matdes.2013.01.012

Cited by 38 publications

(20 citation statements)

References 30 publications

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“…of Sn increases the corrosion resistance and decreases the elastic modulus and the porosity of the alloy. Related to the citotoxicity of similar Ti-Nb-Sn alloys, there are many studies that confirmed they are suitable biomaterials due to their good cell adhesion or cell substrate interaction, thus they do not cause toxic effects [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Pina

Dalmau

Devesa

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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ElsevierGuiñon Pina, V.; Dalmau, A.; Amigó Borrás, V. (2015). AbstractThe tribo-electrochemical behavior of different  titanium alloys for biomedical applications sintered by powder metallurgy has been investigated. Different mechanical, electrochemical and optical techniques were used to study the influence of the chemical composition, Sn content, and the electrochemical conditions on the tribocorrosion behavior of those alloys Ti30NbxSn alloys (where "x" is the weight percentage of Sn content, 2% and 4%).Sn content increases the active and passive dissolution rate of the titanium alloys, thus increasing the mechanically activated corrosion under tribocorrosion conditions. It also increases the mechanical wear of the alloy. Prevailing electrochemical conditions between -1 and 2 V influences the wear accelerated corrosion by increasing it with the applied potential and slightly increases the mechanical wear of Ti30Nb4Sn.Wear accelerated corrosion can be predicted by existing models as a function of electrochemical and mechanical parameters of the titanium alloys.

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Section: Introductionmentioning

confidence: 99%

Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Pina

Dalmau

Devesa

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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“…Liu et al [15] studied the in vitro effects of some alloying elements, including the Sn on pure iron and they obtained that there was not significant cytotoxicity to ECV304 cells, except for the FeMn alloy. Wan et al also studied the biocompatibility of Ti35Nb2.5Sn and Ti35Nb1.4Sn alloys [16], revealing that osteoblasts cells have good growing and spreading ability on the surface of Ti35NbxSn and that cell viability for the Ti35Nb2.5Sn is 0.4 times higher than for CP Ti.…”

Section: Introductionmentioning

confidence: 99%

“…By conventional powder metallurgy elemental powders are mixed and good final properties of the alloy, such tensile stresses, specific strength and a good combination of toughness and fatigue resistance are obtained despite of the inherent porosity of the process [15,16]. It avoids the remelting of the material and subsequent heat treatments performed in the fusion process [19].…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays porous titanium has become a popular surgical implant material since it increases the roughness and the porosity of the material, thus increasing the integration of the material device to the bone [18][19][20]. As the roughness increases the osseointegration is greater, but the active surface is also higher promoting the corrosion and the formation of oxides on the titanium surface [16,21,22]. An homogeneous microstructure is achieved even though all the diffusion process is conducted in solid state [9].…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Dalmau

Pina

Devesa

et al. 2015

Materials Science and Engineering: C

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The electrochemical behaviour of three different near-β titanium alloys (composed by Ti, Nb and Sn) obtained by powder metallurgy for biomedical applications has been investigated. Different electrochemical and microscopy techniques were used to study the influence of the chemical composition (Sn content) and the applied potential on the microstructure and the corrosion mechanisms of those titanium alloys. Addition of Sn below 4% wt. to the titanium powder improves the microstructural homogeneity and generates an alloy with high corrosion resistance with low elastic modulus, being more suitable as a biomaterial. When the Sn content is above 4%, the corrosion resistance considerably decreases by increasing the passive dissolution rate; this effect is enhanced with the applied potential.

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“…Therefore, in the current study, we selected Ti-Nb alloys as our research focus. In previous studies on Ti-Nb alloys, the proportion of Nb ranged from 10-40% [1][2][3]12,18,27]. Therefore, for our research, we chose an alloy composition of 12%, which is referred to as Ti-(12%)Nb.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Properties and Corrosion Resistance of the Newly Developed Biomaterial, Ti–12Nb–1Ag Alloy

Chao

Chiu

et al. 2017

Metals

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Currently, the development of biomaterials has focused on having a low Young's modulus, biocompatibility, corrosion resistance, and antibacterial properties. Ti-Nb alloys have higher research value due to their excellent corrosion resistance and low Young's modulus. In recent years, the antibacterial properties of materials have been enhanced by the addition of Ag and Cu. Therefore, the corrosion resistance and antibacterial properties of the Ti-12Nb-1Ag alloy formulated in the current study were investigated and compared to those of commonly used Ti alloys, G2 pure Ti (ASTM B348 CP Grade 2), and Ti-6Al-4V, via electrochemical and E. coli antibacterial tests. Meanwhile, we also carried out a microstructural analysis to investigate the composition of the alloy. The results were as follows: (1) The electrochemical test demonstrated that Ti-12Nb-1Ag had a higher corrosion resistance than Ti-6Al-4V, which is similar to the properties of pure Ti. (2) The E. coli antibacterial test demonstrated that the sterilization rate of Ti-12Nb-1Ag was higher than that of the Ti-6Al-4V alloy and pure Ti. (3) The microstructural analysis revealed that Ti-12Nb-1Ag had an acicular martensite structure, with nano-Ag precipitates observed. Based on the results of the E. coli antibacterial test and the principles of sterilization of nano-precipitates and Ag, we inferred that the nano-Ag precipitates of Ti-12Nb-1Ag enhanced the antibacterial properties of the newly developed biomaterial, which is, namely, the Ti-12Nb-1Ag alloy.

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Effects of Sn content on the microstructure, mechanical properties and biocompatibility of Ti–Nb–Sn/hydroxyapatite biocomposites synthesized by powder metallurgy

Cited by 38 publications

References 30 publications

Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Antibacterial Properties and Corrosion Resistance of the Newly Developed Biomaterial, Ti–12Nb–1Ag Alloy

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