First principles theoretical investigations of low Young's modulus beta Ti–Nb and Ti–Nb–Zr alloys compositions for biomedical applications

Karre, Rajamallu; Niranjan, Manish K.; Dey, Suhash Ranjan

doi:10.1016/j.msec.2015.01.061

Cited by 115 publications

(44 citation statements)

References 39 publications

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“…The results indicated that for both Ti-20Nb and Ti-30Nb specimens, the grain size of β increased with the increasing solution treatment temperature. The stability of bcc β phase in Ti-M alloys (M=trainstition element) can be understood from two aspects [11]: (1) the formation energies of compositions, i.e. decrease in formation energy indicates increase in stability of the phase; (2) the ratio of valence electrons and number of atoms (e/a), β phase in Ti-M alloys is stablized at the e/a ratio is 4.2 or more.…”

Section: Methodsmentioning

confidence: 99%

“…decrease in formation energy indicates increase in stability of the phase; (2) the ratio of valence electrons and number of atoms (e/a), β phase in Ti-M alloys is stablized at the e/a ratio is 4.2 or more. Karre et al calculated binary Ti-Nb systms using first-principles calculations with density-functional framework, the theoretical results suggest that the Ti-Nb alloy system have stable bcc (β) phase for Nb content 22 at.% and higher [11]. However, according to Bönisch et al, β phase was detected in Ti-29wt.%Nb (Ti-18at.%Nb) alloys solution treated at 670 K+WQ (water quenched), 818 K+WQ, 1420 K+WQ [12], which indicated the stability of β phase was significantly influenced by heat treatment process.…”

Section: Methodsmentioning

confidence: 99%

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In-situ investigation of stress-induced martensitic transformation in Ti–Nb binary alloys with low Young's modulus

Chang

Wang

Ren

2016

Materials Science and Engineering: A

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Microstructure evolution, mechanical behaviors of cold rolled Ti-Nb alloys with different Nb contents subjected to different heat treatments were investigated. Optical microstructure and phase compositions of Ti-Nb alloys were characterized using optical microscopy and X-ray diffractometre, while mechanical behaviors of Ti-Nb alloys were examined by using tension tests. Stress-induced martensitic transformation in a Ti-30at.%Nb binary alloy was in-situ explored by synchrotron-based high-energy X-ray diffraction (HE-XRD). The results obtained suggested that mechanical behavior of Ti-Nb alloys, especially Young's modulus was directly dependent on chemical compositions and heat treatment process. According to the results of HE-XRD, α＂-V1 martensite generated prior to the formation of α＂-V2 during loading and a partial reversible transformation from α＂-V1 to β phase was detected while α＂-V2 tranformed to β completely during unloading.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

In-situ investigation of stress-induced martensitic transformation in Ti–Nb binary alloys with low Young's modulus

Chang

Wang

Ren

2016

Materials Science and Engineering: A

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“…Chief among these new alloys are hyperelastic alloys, such as titanium-niobium-zircon (Ti-Nb-Zr), which, in addition to titanium and zircon, add metals such as niobium. These additives reduce Young's modulus to 71 GPa, which is closer to that of natural bone [18, 19]. …”

Section: Introductionmentioning

confidence: 99%

Biomechanical Consequences of the Elastic Properties of Dental Implant Alloys on the Supporting Bone: Finite Element Analysis

Pérez-Pevida

Brizuela-Velasco

Chávarri-Prado

et al. 2016

BioMed Research International

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The objective of the present study is to evaluate how the elastic properties of the fabrication material of dental implants influence peri-implant bone load transfer in terms of the magnitude and distribution of stress and deformation. A three-dimensional (3D) finite element analysis was performed; the model used was a section of mandibular bone with a single implant containing a cemented ceramic-metal crown on a titanium abutment. The following three alloys were compared: rigid (Y-TZP), conventional (Ti-6Al-4V), and hyperelastic (Ti-Nb-Zr). A 150-N static load was tested on the central fossa at 6° relative to the axial axis of the implant. The results showed no differences in the distribution of stress and deformation of the bone for any of the three types of alloys studied, mainly being concentrated at the peri-implant cortical layer. However, there were differences found in the magnitude of the stress transferred to the supporting bone, with the most rigid alloy (Y-TZP) transferring the least stress and deformation to cortical bone. We conclude that there is an effect of the fabrication material of dental implants on the magnitude of the stress and deformation transferred to peri-implant bone.

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“…The biocompatibility of niobium was also concerned to be higher than titanium [10]. Ti-Zr [11][12][13][14][15] and Ti-Nb systems [16][17][18][19][20][21] were already examined in several articles. It was reported that Ti-Zr alloys can improve biocompatibility properties of pure titanium, their mechanical strength and grind ability [13,14].…”

Section: Introductionmentioning

confidence: 99%

Crystal Structure Evolution, Microstructure Formation, and Properties of Mechanically Alloyed Ultrafine-Grained Ti-Zr-Nb Alloys at 36≤Ti≤70 (at. %)

et al. 2020

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Titanium β-type alloys are preferred biomaterials for hard tissue replacements due to the low Young modulus and limitation of harmful aluminum and vanadium present in the commercially available Ti6Al4V alloy. The aim of this study was to develop a new ternary Ti-Zr-Nb system at 36≤Ti≤70 (at. %). The technical viability of preparing Ti-Zr-Nb alloys by high-energy ball-milling in a SPEX 8000 mill has been studied. These materials were prepared by the combination of mechanical alloying and powder metallurgy approach with cold powder compaction and sintering. Changes in the crystal structure as a function of the milling time were investigated using X-ray diffraction. Our study has shown that mechanical alloying supported by cold pressing and sintering at the temperature below α→β transus (600°C) can be applied to synthesize single-phase, ultrafine-grained, bulk Ti(β)-type Ti30Zr17Nb, Ti23Zr25Nb, Ti30Zr26Nb, Ti22Zr34Nb, and Ti30Zr34Nb alloys. Alloys with lower content of Zr and Nb need higher sintering temperatures to have them fully recrystallized. The properties of developed materials are also engrossing in terms of their biomedical use with Young modulus significantly lower than that of pure titanium.

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First principles theoretical investigations of low Young's modulus beta Ti–Nb and Ti–Nb–Zr alloys compositions for biomedical applications

Cited by 115 publications

References 39 publications

In-situ investigation of stress-induced martensitic transformation in Ti–Nb binary alloys with low Young's modulus

In-situ investigation of stress-induced martensitic transformation in Ti–Nb binary alloys with low Young's modulus

Biomechanical Consequences of the Elastic Properties of Dental Implant Alloys on the Supporting Bone: Finite Element Analysis

Crystal Structure Evolution, Microstructure Formation, and Properties of Mechanically Alloyed Ultrafine-Grained Ti-Zr-Nb Alloys at 36≤Ti≤70 (at. %)

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