Development of Ti‐Ag‐Fe ternary titanium alloy for dental application

Zhang, B.B.; Wang, B.L.; Wang, Y.B.; Li, L.; Zheng, Yufeng; Liu, Yinong

doi:10.1002/jbm.b.31937

Cited by 19 publications

(3 citation statements)

References 65 publications

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“…Compression tests are commonly adopted for the mechanical testing of BMGs 31. Meanwhile, although compression fracture is not a common failure mode for biomaterials, compressive loadings are used at times to characterize the mechanical properties of biomaterials, especially those suffering from compressive loadings (i.e., dental implants) 32. Therefore, compression tests are performed to determine the yield strength and compressive plasticity of the alloys.…”

Section: Discussionmentioning

confidence: 99%

Ni‐free Zr–Cu–Al–Nb–Pd bulk metallic glasses with different Zr/Cu ratios for biomedical applications

Huang

Yokoyama

et al. 2012

J Biomed Mater Res

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Zr-based bulk metallic glasses (BMGs) possess attractive properties for prospective biomedical applications. The present study designs Ni-free Zr-Cu-Al-Nb-Pd BMGs and investigates their in vitro biocompatibility by studying mechanical properties, bio-corrosion resistance, and cellular responses. The Ti-6Al-4V alloy is used as a reference material. It is found that the Zr-based BMGs exhibit good mechanical properties, including high strengths above 1600 MPa, high hardness over 4700 MPa, and low elastic moduli of 85-90 GPa. The Zr-based BMGs are corrosion resistant in a simulated body environment, as revealed by wide passive regions, low passive current densities, and high pitting overpotentials. The formation of ZrO(2)-rich surface passive films of the Zr-based BMGs contributes to their high corrosion resistance, whereas their pitting corrosion in the phosphate buffered saline solution can be attributed to the sensitivity of the ZrO(2) films to the chloride ion. The general biosafety of the Zr-based BMGs is revealed by normal cell adhesions and cell morphologies. Moreover, the Zr/Cu content ratio in the alloy composition affects the biocompatibility of the Zr-based BMGs, by increasing their corrosion resistance and surface wettability with the increase of the Zr/Cu ratio. Effects of Zr/Cu ratios can be used to guide the future design of biocompatible Zr-based BMGs.

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Section: Discussionmentioning

confidence: 99%

Ni‐free Zr–Cu–Al–Nb–Pd bulk metallic glasses with different Zr/Cu ratios for biomedical applications

Huang

Yokoyama

et al. 2012

J Biomed Mater Res

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“…For example, it was shown for the dental Ti-Ag alloys in the works of Zhang et al . 46 47 . The oxide layer in those works consisted mainly of the TiO 2 film.…”

Section: Discussionmentioning

confidence: 99%

Ti–Ag–Pd alloy with good mechanical properties and high potential for biological applications

Zadorozhnyy

Shi

Gorshenkov

et al. 2016

Sci Rep

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Ti-based alloys containing Ag were produced by tilt-casting method and their properties were studied. Even in its as-cast state, Ti94Ag3Pd3 showed relatively high tensile properties, good electrochemical behavior, and good biocompatibility. The relatively good mechanical properties of the as-cast α-Ti-type Ti94Ag3Pd3 alloy (tensile strength up to 850 MPa and elongation of ~10%) can be explained by its severely deformed, fine crystalline structure. The high biocompatibility of Ti94Ag3Pd3 can be explained by the Ag–Pd interaction, which inhibits the release of Ag ions from the surface. Ag, in combination with Pd has no toxic effects and demonstrates useful antimicrobial properties. The Ti94Ag3Pd3 alloy shows a good potential to be applied as a biomedical implant alloy.

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“…It is an effective ¢ stabilizer in ¢-Ti and can enhance the mechanical properties of the Ti alloys. 28) The Ti5AgxFe alloys has been confirmed no cytotoxicity and exhibit excellent biocompatibility, 29) therefore, it's believed that Fe can be used to develop biomedical Ti alloys. In this study, the Nb content is set to 15 mol% to avoid excessive segregations.…”

Section: Introductionmentioning

confidence: 99%

Effects of Fe on Microstructures and Mechanical Properties of Ti–15Nb–25Zr–(0, 2, 4, 8)Fe Alloys Prepared by Spark Plasma Sintering

Yuan

et al. 2019

Mater. Trans.

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Biomedical Ti15Nb25Zr(0, 2, 4, 8)Fe (mol%) alloys are prepared by mixing pure element powders and spark plasma sintering (SPS). Specimens with diameters of 20 mm and thicknesses of 3 mm are obtained by sintering at 1000°C for 10 min followed by cooling in the furnace. Some of the specimens are then heat-treated at 900°C for 1 h followed by water quenching. Zr and Fe are dissolved in Ti; however, segregation of Nb is observed in all of the alloys. The ¢ and ¡AA phases are observed in the as-sintered and heat-treated specimens owing to the insufficient diffusion of the alloying elements. Fe stabilizes the ¢ phase and provides a solution-strengthening effect. With the increase in the Fe content in the as-sintered specimen, the compressive strength and micro-Vickers hardness are improved in the Ti15Nb25Zr(0, 2, 4)Fe alloys and slightly decreased in Ti15Nb25Zr8Fe. The as-sintered Ti15Nb25Zr4Fe alloy exhibits the maximum compressive strength of 1740 MPa. Although the plasticity is decreased by the Fe addition, a fracture strain of approximately 17% is obtained for Ti15Nb25Zr4Fe, indicating a good plasticity. The heat treatment cannot eliminate the segregation of Nb, but can improve the plasticity and slightly increase the strengths of Ti 15Nb25Zr(0, 2, 4)Fe. Moreover, the heat-treated Ti15Nb25Zr8Fe exhibits a high strength of approximately 1780 MPa and fracture strain of approximately 19%. Therefore, good comprehensive mechanical properties, including high strengths, high hardnesses, and good plasticities, can be obtained in Fe-added ¢-Ti alloys prepared by SPS and subsequent optional short heat treatment.

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Development of Ti‐Ag‐Fe ternary titanium alloy for dental application

Cited by 19 publications

References 65 publications

Ni‐free Zr–Cu–Al–Nb–Pd bulk metallic glasses with different Zr/Cu ratios for biomedical applications

Ni‐free Zr–Cu–Al–Nb–Pd bulk metallic glasses with different Zr/Cu ratios for biomedical applications

Ti–Ag–Pd alloy with good mechanical properties and high potential for biological applications

Effects of Fe on Microstructures and Mechanical Properties of Ti–15Nb–25Zr–(0, 2, 4, 8)Fe Alloys Prepared by Spark Plasma Sintering

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