Microstructure refinement and strengthening mechanisms of additively manufactured Ti-Zr alloys prepared from pre-mixed feedstock

Issariyapat, Ammarueda; Huang, Jung-Tang; Teramae, Takuma; Kariya, Shota; Bahador, Abdollah; Visuttipitukul, Patama; Umeda, Junko; Alhazaa, Abdulaziz; Kondoh, Katsuyoshi

doi:10.1016/j.addma.2023.103649

Cited by 6 publications

(2 citation statements)

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“…The authors of the present work also investigated the electrochemical behavior of the Ti-Zr alloy in Ringer's solution, and it was found that the alloy has a superior corrosion resistance compared to cpTp [23]. Furthermore, Zr addition results in microstructural refinement without a significant reduction in ductility [24]. Considering these aspects, from the literature one can notice that Ti-Zr is of particular interest in dentistry; however, its performance can still be improved, and this can be achieved by changing the alloy's Zr content to produce an alloy with a defect-free microstructure, improving osseointegration by passivation in different solutions, heat treatments, etc.…”

Section: Introductionmentioning

confidence: 80%

Electrochemical Study and Mechanical Properties of Ti-Zr Alloy for Biomedical Applications

Hulka,

Uțu,

Brito-Garcia

et al. 2024

Crystals

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In response to concerns of potential cytotoxicity and adverse tissue reactions caused by vanadium and aluminum in the currently used biomaterial Ti-6Al-4V, the Ti–20Zr alloy was evaluated in this study because it has been suggested as a candidate for human body implant material. The Ti-20Zr alloy was obtained by vacuum-melting, followed by heat treatment at 1000 °C for 1 h, and then air-cooled. Optical and scanning electron microscopy revealed that the sample had an α and β lamellar microstructure. Analysis showed that the mechanical properties, in terms of hardness measurements performed at low loads, were significantly different between the two phases. Thus, it was found out that the α phase is softer by about 30% compared to the β phase. The Electrochemical Impedance Spectroscopy technique (EIS) was employed to study the electrochemical behavior in simulated body fluid (SBF). The electrochemical behavior demonstrated that Ti-20Zr alloy exhibits excellent corrosion resistance due to the stable oxide layer formed on its surface. SEM and EDS investigations showed that the surface topography, after electrochemical studies, is characterized by a porous film with increased oxygen content, which might be suitable for the osteoinductive growth of bone.

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Section: Introductionmentioning

confidence: 80%

Electrochemical Study and Mechanical Properties of Ti-Zr Alloy for Biomedical Applications

Hulka,

Uțu,

Brito-Garcia

et al. 2024

Crystals

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“…leads to a significant decrease in the elastic modulus and increase in the strength of alloys in comparison with traditional commercially available alloys (cp-Ti, Ti-6Al-4V), but it is not enough (the minimum elastic modulus of titanium alloys is 40-50 GPa, and that of bone is 4-30 GPa). The further reduction of Young's modulus is possible by creating porous structures with pore sizes of 100-500 µm for better ingrowth of new bone tissue [127,166]. The prospectivity of this has been supported by some studies.…”

Section: Double Alloys Triple Alloys More Complex Alloysmentioning

confidence: 94%

Dental Implants: Modern Materials and Methods of Their Surface Modification

Sotova,

Yanushevich,

Kriheli

et al. 2023

Materials

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The development of dental implantology is based on the detailed study of the interaction of implants with the surrounding tissues and methods of osteogenesis stimulation around implants, which has been confirmed by the increasing number of scientific publications presenting the results of studies related to both the influence of the chemical composition of dental implant material as well as the method of its surface modification on the key operational characteristics of implants. The main materials for dental implant manufacturing are Ti and its alloys, stainless steels, Zr alloys (including ceramics based on ZrO2), and Ta and its alloys, as well as other materials (ceramics based on Al2O3, Si3N4, etc.). The review presents alloy systems recommended for use in clinical practice and describes their physical–mechanical and biochemical properties. However, when getting into the body, the implants are subjected to various kinds of mechanical influences, which are aggravated by the action of an aggressive biological environment (electrolyte with a lot of Cl− and H+); it can lead to the loss of osteointegration and to the appearance of the symptoms of the general intoxication of the organism because of the metal ions released from the implant surface into the biological tissues of the organism. Since the osteointegration and biocompatibility of implants depend primarily on the properties of their surface layer (it is the implant surface that makes contact with the tissues of the body), the surface modification of dental implants plays an important role, and all methods of surface modification can be divided into mechanical, physical, chemical, and biochemical methods (according to the main effect on the surface). This review discusses several techniques for modifying dental implant surfaces and provides evidence for their usefulness.

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Revolutionising orthopaedic implants—a comprehensive review on metal 3D printing with materials, design strategies, manufacturing technologies, and post-process machining advancements

Shaikh,

Kahwash,

et al. 2024

Int J Adv Manuf Technol

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This paper conceptualises an understanding of advanced manufacturing methods to develop 3D-printed metallic orthopaedic implants, including a brief discussion on post-process machining. The significance of Metallic Additive Manufacturing (MAM) and its practicality for industrial applications is discussed through a juxtaposition with conventional casting and machining approach. Different alloys and suitable MAM techniques are thoroughly reviewed to determine optimum operating conditions. Although MAM can produce near-net shape parts, post-processing is an unavoidable requirement to improve surface quality and dimensional accuracy. A comparative study is presented, highlighting the importance of machining for post-processing in terms of cost savings and performance. Different materials are evaluated aiming to overcome problems associated with existing orthopaedic implants. The consequence of bone-implant mechanical mismatch leading to stress shielding and inadequate corrosion properties obstructing biodegradability are explored in detail. The effect of additive manufacturing parameters on mechanical, corrosion, and surface properties including biocompatibility is analysed. Evidence of MAM’s advantages over conventional manufacturing approaches, such as the use of functionally graded lattices and patient-specific customised designs, is also presented. Finally, for future studies, a two-way approach is conceptualised with material selection and manufacturing process control in progressions of implant development using MAM. Graphical Abstract

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Microstructure refinement and strengthening mechanisms of additively manufactured Ti-Zr alloys prepared from pre-mixed feedstock

Cited by 6 publications

References 58 publications

Electrochemical Study and Mechanical Properties of Ti-Zr Alloy for Biomedical Applications

Electrochemical Study and Mechanical Properties of Ti-Zr Alloy for Biomedical Applications

Dental Implants: Modern Materials and Methods of Their Surface Modification

Revolutionising orthopaedic implants—a comprehensive review on metal 3D printing with materials, design strategies, manufacturing technologies, and post-process machining advancements

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