Strengthening/Weakening Action of Zr on Stabilizers of Ti Alloys and Its Effect on Phase Transition

Liang, S.X.; Zhou, Yixin; Yin, L.X.

doi:10.1007/s11665-020-05408-2

Cited by 10 publications

(4 citation statements)

References 41 publications

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“…It can be found that compared with Ti64, the mean grain size of ZrO 2 -added sample increases significantly, which is mainly related to the increase in zirconium content. As mentioned earlier, recent report indicates that Zr addition can decrease the phase transition temperature of Ti with α-stabiliser and weaken the stabilising effect of α-stabiliser [25]. It is well known that the self-diffusion rate of β-Ti is several orders of magnitude higher than α-Ti, so the sintering densification can be accelerated at the same sintering temperature and the grain size of ZrO 2 -added sample is larger [28].…”

Section: Resultsmentioning

confidence: 99%

“…Zirconium is usually considered as a neutral solid solution element in titanium and can improve the corrosion resistance and mechanical strength of titanium [21–24]. In addition, recent reports indicate that zirconium has a weakening effect on the phase transition temperature of titanium [25]. And in our previous study, it was found that the grain size of pure titanium under the same sintering conditions showed a trend of increasing with the increase in ZrO 2 content [26].…”

Section: Introductionmentioning

confidence: 94%

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Microstructure evolution and mechanical property of powder metallurgy Ti6Al4V alloy with high oxygen concentrations

et al. 2022

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High oxygen Ti6Al4V alloys are fabricated by vacuum sintering and hot rolling using hydrogenation-dehydrogenation Ti6Al4V powder and ZrO 2 powder as raw materials. The complete dissolution of oxygen and zirconium atoms results in an increase in lattice constant and strength. As-rolled Ti64-ZrO 2 sample exhibits a bimodal structure with a fine acicular α phase of around 1 μm. Ti64-0.75 ZrO 2 alloy with equivalent oxygen content close to 0.6 wt.-% presents a good combination of the high tensile strength (1180.2 MPa) and sufficient elongation (7.3%). Therefore, the critical oxygen content for the ductile-to-brittle transition of powder metallurgy Ti6Al4V alloy can be improved by suitable preparation methods. The formation of a fine β transformation structure may be one of the reasons for maintaining sufficient ductility.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 94%

Microstructure evolution and mechanical property of powder metallurgy Ti6Al4V alloy with high oxygen concentrations

et al. 2022

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“…However, a few publications [49][50][51][52] have indicated its beta stabilizing effect when over 10% Zr was added to the Ti alloys. In addition, Liang et al [25] theoretically showed that the addition of Zr into Ti alloys with one or more beta stabilizers could strengthen the effect of the beta stabilizers. Several experimental results [53][54][55] have also indicated the same effect of a Zr addition into Ti alloys with beta stabilizers.…”

Section: Resultsmentioning

confidence: 99%

“…Thus, the addition of Zr alone into metal Ti should have no or very weak effects on its phase constitution, as Wang showed [24]. However, the addition of Zr together with other beta phase stabilizers of Ti alloys can enhance the stabilizing effect [25]. Furthermore, the addition of Zr can strengthen the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the Composition and Elastic Modulus of TiZrTa Alloys for Implant Materials

Zhao¹,

Liu

Ding

et al. 2022

Metals

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The elastic modulus is a key factor influencing the applications of implant materials because of the weakening effect of stress shielding. Ti and its alloys are good potential implant materials thanks to their low elastic modulus and fine biocompatibility. The addition of alloying elements into pure Ti and Ti alloys is the basic way to further decrease the elastic modulus whilst simultaneously enhancing strength, wearability, and corrosion resistance, for example. Finding the relationship between the composition and elastic modulus can greatly promote the development of Ti alloys with a low modulus for implant applications. In the current work, we investigated the elastic modulus of TiZrTa alloys with scores of compositions by using the high-throughput diffusion couple method, nanoindentation, and an electron probe micro-analysis. The relationship between the elastic modulus and the composition of the TiZrTa alloys was obtained. The average valence electron theory was employed to make clear the variation between the elastic modulus and the composition. Finally, the composition range formulae of TiZrTa alloys likely to have a low modulus were established by combining our data and previous results. These findings are helpful in developing new Ti alloys with a low modulus and also help to further understand the alloying theory.

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Influence of Zr Content on Microstructure and Corrosion Behavior of As-Cast Zr-Modified Ti6Al7Nb Alloy for Biomedical Applications

Ли

Chen

et al. 2023

J. of Materi Eng and Perform

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Strengthening/Weakening Action of Zr on Stabilizers of Ti Alloys and Its Effect on Phase Transition

Cited by 10 publications

References 41 publications

Microstructure evolution and mechanical property of powder metallurgy Ti6Al4V alloy with high oxygen concentrations

Microstructure evolution and mechanical property of powder metallurgy Ti6Al4V alloy with high oxygen concentrations

Relationship between the Composition and Elastic Modulus of TiZrTa Alloys for Implant Materials

Influence of Zr Content on Microstructure and Corrosion Behavior of As-Cast Zr-Modified Ti6Al7Nb Alloy for Biomedical Applications

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