Features of Changes in the Surface Structure and Phase Composition of the of α + β Titanium Alloy after Electromechanical and Thermal Treatment

Bagmutov, V. P.; Vodop'yanov, V. I.; Zakharov, I. N.; Ivannikov, A. Yu.; Богданов, А. И.; Romanenko, M. D.; Barinov, Vladislav Valerievich

doi:10.3390/met12091535

Cited by 6 publications

(2 citation statements)

References 37 publications

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“…Silicon (Si), which can be found as silicide and solid solution, is a crucial element in titanium (Ti) alloys. Some studies have demonstrated that the addition of silicon to titanium alloys can improve strength, creep resistance and oxidation resistance, as well as reduce fluidity, particularly at ambient temperature [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Research Progress of Titanium-Based Alloys for Medical Devices

Baltatu,

Vizureanu,

Sandu

et al. 2023

Biomedicines

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Biomaterials are currently a unique class of materials that are essential to improving the standard of human life and extending it. In the assent of the appearance of biomaterials that contain non-toxic elements, in this study, we examine a system of Ti25Mo7Zr15TaxSi (x = 0, 0.5, 0.75, 1 wt.%) for future medical applications. The alloys were developed in a vacuum electric arc furnace and then studied from a structural, mechanical and in vivo assessment (on rabbits) perspective. The effect of the silicon addition was clearly seen in both the structural and the mechanical characteristics, standing out as beta alloys with a dendritic structure and lowering the mechanical properties as a result of the silicon addition. In experimental rabbits, the proliferation of mesenchymal stem cells was observed in the periosteum and peri-implant area, differentiating into osteoblasts and then into osteocytes. Osteoclasts were discovered within the cartilaginous islands that provide structural support to newly formed bone, playing a primary role in bone remodeling. The newly formed spongy tissue adhered to the fibrous capsule that surrounds the alloy, ensuring good osseointegration of metallic implants. The overexpression of Osteopontin, Metalloproteinase-2 (also known as gelatinase A), and Metallopeptidase-9 (also known as gelatinase B) underscores the processes of osteogenesis, bone mineralization, and normal bone remodeling.

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Section: Introductionmentioning

confidence: 99%

Research Progress of Titanium-Based Alloys for Medical Devices

Baltatu,

Vizureanu,

Sandu

et al. 2023

Biomedicines

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“…атематические модели тепловых процессов комбинированных методов электромеханической обработки (ЭМО) с точки зрения металловедения имеют наибольшее сходство с термомеханической обработкой металлов [1][2][3][4][5][6] и основываются на уравнении теплопроводности. При этом учитываются отличия теплофизических свойств (температуропроводности ω, теплоемкости k, теплопроводности λ и теплоотдачи α), которые ограничиваются начальными и граничными условиями, технологическими и другими особенностями исследуемых методов обработки.…”

Section: Introductionunclassified

Modeling of Thermal Processes in a Technological System during Electromechanical Processing

Edigarov¹,

Alimbaeva²

2022

Vestnik IzhGTU imeni M.T. Kalashnikova

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The article presents mathematical models of thermal processes of combined methods of electromechanical processing, which are based on the heat conduction equations, which take into account thermophysical properties (thermal diffusivity, heat capacity, thermal conductivity and heat transfer), initial and boundary conditions, technological and other features of the studied processing methods. In view of the fact that electromechanical processing (EMT) is characterized by a process with a volumetric heat release zone, with sufficiently small dimensions and high intensity, it is assumed that the determination of temperature fields can be carried out using the superposition principle. In this case, the main factors affecting the amount of heat propagating into the contacting bodies are the intensity of heat removal, the thermophysical properties of the contacting bodies, and the speed of their relative movement. Dependences are proposed that allow one to describe the temperature fields in the volumes of parts subjected to thermal deformation during electromechanical processing, which have significant geometric parameters that ensure sufficient heat removal from the treated surfaces into the part. It has been established that in the case of processing parts of small dimensions, with insignificant heat removal, it becomes necessary to take into account the accumulation of heat, which will lead to a general increase in temperature in the technological system during processing, and a decrease in the efficiency of the hardening process. The derived mathematical dependencies in the form of heat conduction equations with the established restrictions make it possible to determine the parameters of thermal fields during electromechanical processing in the system “working tool” - “local microvolume of the surface layer”, while these presented mathematical relationships are presented in a linear formulation with thermophysical coefficients. It has been theoretically established and experimentally confirmed that in the process of processing the main factors affecting the amount of heat propagating into the contacting bodies are the intensity of heat removal, the thermophysical properties of the contacting bodies, and the speed of their relative movement. The performed experimental studies have confirmed the adequacy of the mathematical dependencies used to calculate the temperatures in the local microvolumes of the treated surface layer.

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Optimization of Heat-Treatment Process for Corrosion Resistance of Ti600/TC18 Inertial Friction Welding Joint

Liu,

Zhou,

et al. 2024

JOM

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Features of Changes in the Surface Structure and Phase Composition of the of α + β Titanium Alloy after Electromechanical and Thermal Treatment

Cited by 6 publications

References 37 publications

Research Progress of Titanium-Based Alloys for Medical Devices

Research Progress of Titanium-Based Alloys for Medical Devices

Modeling of Thermal Processes in a Technological System during Electromechanical Processing

Optimization of Heat-Treatment Process for Corrosion Resistance of Ti600/TC18 Inertial Friction Welding Joint

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