Effect of Ag on the corrosion behavior of Ti–Ag alloys in artificial saliva solutions

Zhang, B.B.; Zheng, Yufeng; Liu, Yinong

doi:10.1016/j.dental.2008.10.016

Cited by 88 publications

(50 citation statements)

References 17 publications

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“…After 7200 s immersion, the corrosion potentials of Ti-5Ag, Ti-5Ag-1Fe, Ti-5Ag-2.5Fe, and Ti-5Ag-5Fe alloys are À39 6 14 mV, À52 6 33 mV, À55 6 18 mV, and 69 6 22 mV, which are significantly higher (p < 0.05) than that of CP Ti (À121 6 39 mV). Similar results can be observed in Ti-Ag binary alloys [8][9][10] and Ti-Ag-Cu ternary alloys, 34 and it assumed thicker or more stable oxide films formed on TiAg based alloys. Figure 9 shows the typical potentiodynamic polarization plots for experimental alloys in different solutions.…”

Section: Surface Analysessupporting

confidence: 73%

“…On the contrary, the corrosion resistance of titanium could be improved by adding Cr and Ag. 9,58 Compared to CP Ti, higher corrosion potentials and similar passive current densities could be obtained for Ti-5Ag-xFe alloys. In EIS tests, good agreement between the experimental data and fitted data is obtained, and the fitted parameters are shown in Table I.…”

Section: Mechanical Propertiesmentioning

confidence: 81%

“…Figure 16 compares the electrochemical parameters of some newly developed cast titanium binary alloys recommended by other researchers. 9,[57][58][59] The corrosion resistance of titanium alloy is greatly dependent on the corrosion environment, alloying elements, and their oxides formed. According to the reference, the addition of Cu an Au 57,59 slightly deteriorate the corrosion resistance of titanium due to the precipitation of intermetallic compounds.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…[6][7][8][9][10] The tensile strength and grindability of pure titanium could be improved by silver (Ag) addition. 6,8 It was reported that the tensile strength of Ti-20Ag alloy is 60% higher than that of pure titanium; moreover, the elongation is over 19%.…”

Section: Introductionmentioning

confidence: 99%

“…1,2 However, the insufficient strength and poor wear resistance of unalloyed titanium (Ti) was often complained. 3,4 Because the properties of unalloyed titanium are not suitable for certain purposes, many titanium alloys, such as titanium-copper 3,[5][6][7] alloys, titanium-silver alloys, [6][7][8][9][10] titanium-hafnium alloys, 11,12 and titanium-zirconium alloys 13 have been developed for dental application, and their properties have been studied mainly to improve the strength and castability of pure titanium.…”

Section: Introductionmentioning

confidence: 99%

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

Zhang

Wang

et al. 2011

J Biomed Mater Res

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A series of titanium-silver-iron ternary alloys have been prepared in this study, and their feasibility as dental materials has been evaluated by the microstructural examination, mechanical testing, corrosion resistance evaluation, surface analysis, and cytotoxicity tests. More and more b-Ti phase appears at room temperature and retains with the increasing of Fe content in Ti-5Ag-xFe alloy systems. The compression strength, wear resistance, and microhardness increase largely (p < 0.05) by the addition of element Fe to Ti-Ag alloy. Moreover, when comparing with commercial pure titanium (CP Ti), nobler electrochemical corrosion behavior could be obtained for Ti-5Ag-1Fe and Ti-5Ag-2.5Fe alloys in the 1% lactic acid solution (pH ¼ 2.1) and 0.1 mol/L H 2 O 2 þ 0.9% NaCl solution (pH ¼ 4.0). The released metal ions from Ti-5Ag-xFe alloys into the simulated fluid are trace, similar to the case of CP Ti. The addition of Fe slightly decreases the corrosion resistance of Ti-5Ag alloy. All experimental Ti-5Ag-xFe alloy extracts do not present any cytotoxicity to L-929 and NIH3T3 cell lines. All in all, the combination of superior corrosion resistance and enhanced mechanical properties make Ti-5Ag-1Fe alloy and Ti-5Ag-2.5Fe alloy suitable for dental applications.

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