Improved Elasticity of New Ti-Alloys for Biomedical Applications

Gepreel, Mohamed Abdel‐Hady

doi:10.1016/j.matpr.2015.07.445

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…The first observation, common to all anterior reported alloys, relates to the presence of expensive Tantalum, which is absent in the alloy that was studied here. The reported alloys were in an ST condition (like the present alloy) in only two studies-Furuta et al [47] and M.A.-H. Gepreel [48]. Compared to these two cases, the obtained results are similar, i.e., they have very good limits.…”

Section: Comparison Between the Experimental Alloy And Other Publishe...supporting

confidence: 50%

“…Previous studies on TNTZ-Fe-O alloys [31][32][33]47,48] provided valuable information for developing novel alloys by tuning the composition and processing parameters to obtain the best mechanical and biomedical properties suitable for medical implants. These reports refer to alloys in a cold-rolling (CR) state or after a CR + ST combination, for which the Young's modulus can vary between 60 and 107 GPa, and the ultimate tensile strength-UTS can vary between 903 and 1370 MPa.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, both previously reported modalities for increasing the strength of β-Ti alloys will be applied [49][50][51], including the addition of Fe and O and a complex TMP program with variable processing parameters. The experimental results will be compared with those reported in [31][32][33]47,48] by highlighting the advantages and disadvantages of the results obtained for the proposed alloy and corresponding TMP parameters. At the same time, the proposed investigations seek to describe the relationship between the microstructure and mechanical properties of this alloy under different heat treatment conditions.…”

Section: Introductionmentioning

confidence: 99%

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Improving the Mechanical Properties of a β-type Ti-Nb-Zr-Fe-O Alloy

Cojocaru

Nocivin

Trisca-Rusu

et al. 2020

Metals

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The influence of complex thermo-mechanical processing (TMP) on the mechanical properties of a Ti-Nb-Zr-Fe-O bio-alloy was investigated in this study. The proposed TMP program involves a schema featuring a series of severe plastic deformation (SPD) and solution treatment (STs). The purpose of this study was to find the proper parameter combination for the applied TMP and thus enhance the mechanical strength and diminish the Young’s modulus. The proposed chemical composition of the studied β-type Ti-alloy was conceived from already-appreciated Ti-Nb-Ta-Zr alloys with high β-stability by replacing the expensive Ta with more accessible Fe and O. These chemical additions are expected to better enhance β-stability and thus avoid the generation of ω, α’, and α” during complex TMP, as well as allow for the processing of a single bcc β-phase with significant grain diminution, increased mechanical strength, and a low elasticity value/Young’s modulus. The proposed TMP program considers two research directions of TMP experiments. For comparisons using structural and mechanical perspectives, the two categories of the experimental samples were analyzed using SEM microscopy and a series of tensile tests. The comparison also included some already published results for similar alloys. The analysis revealed the advantages and disadvantages for all compared categories, with the conclusions highlighting that the studied alloys are suitable for expanding the database of possible β-Ti bio-alloys that could be used depending on the specific requirements of different biomedical implant applications.

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Section: Comparison Between the Experimental Alloy And Other Publishe...supporting

confidence: 50%