New Ti–35Nb–7Zr–5Ta Alloy Manufacturing by Electron Beam Melting for Medical Application Followed by High Current Pulsed Electron Beam Treatment

Surmeneva, Maria A.; Grubova, Irina Yu.; Glukhova, N. P.; Khrapov, Dmitriy; Koptyug, Andrey; Volkova, Anastasia; Ivanov, Yurii; Cotruț, Cosmin Mihai; Vlădescu, Alina; Тересов, А. Д.; Koval, N. N.; Tyurin, A. I.; Surmenev, Roman A.

doi:10.3390/met11071066

Cited by 19 publications

(16 citation statements)

References 51 publications

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“…Thus, by comparison, it can be observed that the proposed materials have registered values of corrosion rates that are of 1000 times smaller than 0.02 mm/y, indicating their potential use as implantable biomaterials. Likewise, similar results of the corrosion parameters have also been reported by Surmeneva, M. et al [26], which have developed a TNTZ alloy by electron beam melting technique.…”

Section: Corrosion Testing Of Tntz Alloy In Sbfsupporting

confidence: 87%

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Effects of Cold Rolling Deformation and Solution Treatment on Microstructural, Mechanical, and Corrosion Properties of a Biocompatible Ti-Nb-Ta-Zr Alloy

Angelescu

Dan

Ungureanu

et al. 2022

Metals

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One of the most important requirements for a metallic biomaterial is the mechanical biocompatibility, which means excellent mechanical properties—high strength and fatigue strength, but low elastic modulus, to be mechanically harmonized with hard tissues. In order to improve the mechanical and biocompatible performance of the Ti-25.5Nb-4.5Ta-8.0Zr wt% alloy, the influence of cold plastic deformation and solution treatment on its properties were investigated. The Ti-25.5Nb-4.5Ta-8.0Zr wt% alloy was fabricated by melting in a cold crucible furnace (in levitation) and then subjected to several treatment schemes, which include cold rolling and different solution treatments. Microstructural and mechanical characteristics of specimens in as-cast and thermo-mechanically processed condition were determined by SEM microscopy and tensile testing, for different structural states: initial as-cast/as-received, cold rolled and solution treated at different temperatures (800, 900, and 1000 °C) and durations (5, 10, 15, and 20 min), with water quenching. It was concluded that both cold rolling and solution treatment have important positive effects on structural and mechanical properties of the biomaterial, increasing mechanical strength and decreasing the elastic modulus. Samples in different structural states were also corrosion tested and the results provided important information on determining the optimal processing scheme to obtain a high-performance biomaterial. The final processing route chosen consists of a cold rolling deformation with a total deformation degree of 60%, followed by a solution heat treatment at 900 °C with maintenance duration of 5 min and water quenching. By applying this thermo-mechanical processing scheme, the Ti-25.5Nb-4.5Ta-8.0Zr wt% alloy showed an elastic modulus of 56 GPa (5% higher than in the as-cast state), an ultimate tensile strength of 1004 MPa (41.8% higher than in the as-cast state), a yield strength of 718 MPa (40.6% higher than in the as-cast state), and increased corrosion resistance (the corrosion rate decreased by 50% compared to the as-cast state).

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Section: Corrosion Testing Of Tntz Alloy In Sbfsupporting

confidence: 87%

“…Nb and Ta are β stabilizers and Zr is important for the solid solution strengthening of the alloy. In the last decades, the properties of new metastable beta Ti alloys have been intensively studied: Ti-35Nb-7Zr-5Ta [26], Ti-24Nb-4Zr-8Sn [27], Ti-25Ta-25Nb [28], and Ti-20Zr-10Nb [29].…”

Section: Introductionmentioning

confidence: 99%

Effects of Cold Rolling Deformation and Solution Treatment on Microstructural, Mechanical, and Corrosion Properties of a Biocompatible Ti-Nb-Ta-Zr Alloy

Angelescu

Dan

Ungureanu

et al. 2022

Metals

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“…Furthermore, Young's modulus of these materials significantly differs from that of the human bones, which can cause the resorption of adjacent bone tissues [7]. The ideal implant should exhibit low Young's modulus (very close to that of the human bones), excellent wear resistance, and biocompatibility [8]. The discussed requirements for the implant material depend mostly on the surface properties of the alloys, and therefore, can be achieved by an appropriate technique for surface modification.…”

Section: Introductionmentioning

confidence: 99%

Influence of Beam Power on Young’s Modulus and Friction Coefficient of Ti–Ta Alloys Formed by Electron-Beam Surface Alloying

Valkov

Дечев

Ivanov

et al. 2021

Metals

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In this study, we present the results of Young’s modulus and coefficient of friction (COF) of Ti–Ta surface alloys formed by electron-beam surface alloying by a scanning electron beam. Ta films were deposited on the top of Ti substrates, and the specimens were then electron-beam surface alloyed, where the beam power was varied from 750 to 1750 W. The structure of the samples was characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD). Young’s modulus was studied by a nanoindentation test. The coefficient of friction was studied by a micromechanical wear experiment. It was found that at 750 W, the Ta film remained undissolved on the top of the Ti, and no alloyed zone was observed. By an increase in the beam power to 1250 and 1750 W, a distinguished alloyed zone is formed, where it is much thicker in the case of 1750 W. The structure of the obtained surface alloys is in the form of double-phase α’and β. In both surface alloys formed by a beam power of 1250 and 1750 W, respectively, Young’s modulus decreases about two times due to different reasons: in the case of alloying by 1250 W, the observed drop is attributed to the larger amount of the β phase, while at 1750 W is it due to the weaker binding forces between the atoms. The results obtained for the COF show that the formation of the Ti–Ta surface alloy on the top of Ti substrate leads to a decrease in the coefficient of friction, where the effect is more pronounced in the case of the formation of Ti–Ta surface alloys by a beam power of 1250 W.

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“…The XRD patterns of the E-PBF-manufactured TNZT alloy are represented by clear (110), (200), (211), and (220) peaks (Figure b), which correspond to the β Ti phase (JCPDS file # 03-065-9438) with a bcc structure, with the following average lattice parameters: a = 3.2958 ± 0.0006 Å. In addition, the weak peaks at 2θ values of 34.04, 35.67, and 60.15° were detected, which can attribute to the small presence of α″ martensite and NbTi 4 (JCPDS file #03-065-7479) intermetallic phases in the orthorhombic crystal structure (the space group Cmcm ). , It is in good agreement with our previously reported results in ref of the TEM study of the as-manufactured TNZT alloy, which have shown the presence of the equiaxed β-grains with the fine dispersion of nanocrystalline α″ and NbTi 4 phases together with β-Ti twins.…”

Section: Resultsmentioning

confidence: 96%

“…Cuboid test samples with the dimensions of about 10 × 10 × 10 mm 3 were manufactured using the following processing parameters: the thickness of the layer (δ) was 100 μm, process temperature ( T ) settings (initial start plate preheat and process target temperatures) varied from 520 to 610 °C, beam current ( I ) was 3 mA, beam velocity ( v ) was 407 mm/s, line offset ( h , spacing between hatch lines in a raster type scan) was 0.1 mm, and area energy ( E A ) was 4.4 J/mm 2 . These settings provided the best physical and mechanical characteristics of the fabricated samples and were set based on the previously reported results . That study was mainly focused on the effects of high-current pulsed electron-beam (PEB) treatment as a surface finishing procedure on the TNZT alloy produced by E-PBF.…”

Section: Theoretical Methods and Experimental Proceduresmentioning

confidence: 99%

Combined First-Principles and Experimental Study on the Microstructure and Mechanical Characteristics of the Multicomponent Additive-Manufactured Ti–35Nb–7Zr–5Ta Alloy

et al. 2023

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New β-stabilized Ti-based alloys are highly promising for bone implants, thanks in part to their low elasticity. The nature of this elasticity, however, is as yet unknown. We here present combined first-principles DFT calculations and experiments on the microstructure, structural stability, mechanical characteristics, and electronic structure to elucidate this origin. Our results suggest that the studied β Ti−35Nb−7Zr−5Ta wt % (TNZT) alloy manufactured by the electron-beam powder bed fusion (E-PBF) method has homogeneous mechanical properties (H = 2.01 ± 0.22 GPa and E = 69.48 ± 0.03 GPa) along the building direction, which is dictated by the crystallographic texture and microstructure morphologies. The analysis of the structural and electronic properties, as the main factors dominating the chemical bonding mechanism, indicates that TNZT has a mixture of strong metallic and weak covalent bonding. Our calculations demonstrate that the softening in the Cauchy pressure (C′ = 98.00 GPa) and elastic constant C̅ 44 = 23.84 GPa is the origin of the low elasticity of TNZT. Moreover, the nature of this softening phenomenon can be related to the weakness of the second and third neighbor bonds in comparison with the first neighbor bonds in the TNZT. Thus, the obtained results indicate that a carefully designed TNZT alloy can be an excellent candidate for the manufacturing of orthopedic internal fixation devices. In addition, the current findings can be used as guidance not only for predicting the mechanical properties but also the nature of elastic characteristics of the newly developed alloys with yet unknown properties.

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New Ti–35Nb–7Zr–5Ta Alloy Manufacturing by Electron Beam Melting for Medical Application Followed by High Current Pulsed Electron Beam Treatment

Cited by 19 publications

References 51 publications

Effects of Cold Rolling Deformation and Solution Treatment on Microstructural, Mechanical, and Corrosion Properties of a Biocompatible Ti-Nb-Ta-Zr Alloy

Effects of Cold Rolling Deformation and Solution Treatment on Microstructural, Mechanical, and Corrosion Properties of a Biocompatible Ti-Nb-Ta-Zr Alloy

Influence of Beam Power on Young’s Modulus and Friction Coefficient of Ti–Ta Alloys Formed by Electron-Beam Surface Alloying

Combined First-Principles and Experimental Study on the Microstructure and Mechanical Characteristics of the Multicomponent Additive-Manufactured Ti–35Nb–7Zr–5Ta Alloy

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