Development of β-Ti Alloys for Biomedical Applications – A Review

Hayyawi, Ahmed Rabeea; Al-Ethari, Haydar; Haleem, Ali Hubi

doi:10.1109/icmae56000.2022.9852908

Cited by 2 publications

(3 citation statements)

References 48 publications

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“…It can be observed that the diffractograms presented characteristic The results of X-ray diffraction measurements for Ti-50Nb-xMo system samples are shown in Figure 6. It can be observed that the diffractograms presented characteristic peaks of a cubic structure of the centered body, which is typical of the β phase of this alloy [28][29][30][31]. Figure 8 presents the micrographs after melting; it is possible to perceive only the presence of the β phase of the Ti-50Nb-XMo system alloys, as already observed by Martins Jr et al [16] and Cardoso et al [32].…”

Section: Resultssupporting

confidence: 62%

“…Thus, it can be observed that the elastic modulus of the alloys studied in this work is closer to the human bone than the traditional alloys used [6,30,[43][44][45][46]. It is essential to highlight that a low modulus value is required to produce new metals for biomedical use to avoid the "stress shielding" effect.…”

Section: Discussionmentioning

confidence: 89%

“…The results of X-ray diffraction measurements for Ti-50Nb-xMo system samples are shown in Figure 6 . It can be observed that the diffractograms presented characteristic peaks of a cubic structure of the centered body, which is typical of the β phase of this alloy [ 28 , 29 , 30 , 31 ].…”

Section: Resultsmentioning

confidence: 99%

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Investigation of the Chemical Composition, Microstructure, Density, Microhardness, and Elastic Modulus of the New β Ti-50Nb-xMo Alloys for Biomedical Applications

Martins Junior,

Kuroda,

Grandini

2024

Materials

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β-type titanium alloys with a body-centered cubic structure are highly useful in orthopedics due to their low elastic modulus, lower than other commonly used alloys such as stainless steel and Co-Cr alloys. The formation of the β phase in titanium alloys is achieved through β-stabilizing elements such as Nb, Mo, and Ta. To produce new β alloys with a low modulus of elasticity, this work aimed to produce our alloy system for biomedical applications (Ti-50Nb-Mo). The alloys were produced by arc-melting and have the following compositions Ti-50Nb-xMo (x = 0, 3, 5, 7, and 12 wt% Mo). The alloys were characterized by density, X-ray diffraction, scanning electron microscopy, microhardness, and elastic modulus. It is worth highlighting that this new set of alloys of the Ti-50Nb-Mo system produced in this study is unprecedented; due to this, there needs to be a report in the literature on the production and structural characterization, hardness, and elastic modulus analyses. The microstructure of the alloys has an exclusively β phase (with bcc crystalline structure). The results show that adding molybdenum considerably increased the microhardness and decreased the elastic modulus, with values around 80 GPa, below the metallic materials used commercially for this type of application. From the produced alloys, Ti-50Nb-12Mo is highlighted due to its lower elastic modulus.

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