Nanoindentational and conventional mechanical properties of spark plasma sintered Ti–Mo alloys

Asl, Mehdi Shahedi; Delbari, Seyed Ali; Azadbeh, Maziyar; Namini, Abbas Sabahi; Mehrabian, Mehdi; Nguyen, Van‐Huy; Le, Quyet Van; Shokouhimehr, Mohammadreza; Mohammadi, Mohsen

doi:10.1016/j.jmrt.2020.07.066

Cited by 41 publications

(8 citation statements)

References 48 publications

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“…Ti-Cu [117][118][119] Ti-Cu-Al [120] Ti-Cu-Nb [121] Ti-Mo [122][123][124] Ti-Mo-Zr [123] Ti-Mo-Zr-Fe [125] Ti-Mg [126][127][128][129] Ti-Mg-Sr [130] Ti-Fe [131] Te-Fe-Ge [132] Ti-Ca [133] Ti-Pd [133][134][135] Ti-Pt [133] Ti-6Al-4V alloy is 3.0-3.5 times stronger than commercially pure titanium and cheaper to produce [136], which makes it indispensable in the manufacture of thin, reliable implants with special compression threads that are placed in the dense basal regions of the jawbone [52]. However, vanadium and aluminum contained in the alloys have been shown [137,138] to have toxic effects on biological entities and can lead to long-term health problems, such as neurological diseases and Alzheimer's disease [139][140][141][142], while aluminum and iron (although it is not a toxic element) lead to the formation of a connective tissue layer around the implant and to significant tissue contamination, which is a sign of the insufficient bioinertness of the metal.…”

Section: Double Alloys Triple Alloys More Complex Alloysmentioning

confidence: 99%

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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Section: Double Alloys Triple Alloys More Complex Alloysmentioning

confidence: 99%

Dental Implants: Modern Materials and Methods of Their Surface Modification

Sotova,

Yanushevich,

Kriheli

et al. 2023

Materials

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“…As for casted Ti-Cr and Ti-Mo alloys, only 10 wt% Cr or Mo addition is required to form the β phase [20,21]. In the spark plasma sintered Ti-Mo alloy, the highest hardness (592 HV 0.3 ), highest flexural strength (∼2 GPa) and maximum ultimate tensile strength (852 MPa) are achieved for Ti-16Mo, Ti-12Mo and Ti-8Mo alloys (wt.%), respectively [22]. According to Lee et.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Co-Deposited Ti-Ni Films Prepared by Magnetron Sputtering

Zhang

et al. 2023

Coatings

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Ti-Ni films with various Ni contents (16.5, 22.0, 33.5 at. %) were deposited on Al alloy substrates using DC magnetron co-sputtering. The effects of Ni target power and substrate bias (−10, −70, −110 V) on morphologies, crystallography, nanomechanical properties and scratch behavior of films were studied. All the deposited Ti-Ni films exhibited a BCC structure of β-Ti (Ni). The Ti-Ni films grew with a normal columnar structure with good bonding to substrates. When increasing the Ni target power and substrate bias, the grain size grew larger and the surface became denser. The as-deposited Ti-Ni films significantly improved the hardness (>4 GPa) of the Al alloy substrate. With the increase of bias voltage, the hardness and modulus of the film increased. The hardness and modulus of the Ti-22.0Ni film prepared at −70 V bias were 5.17 GPa and 97.6 GPa, respectively, and it had good adhesion to the substrate.

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“…Currently, titanium alloys have a wide range of applications from mechanical engineering to biomedicine, all because of the combination of the unique mechanical characteristics and good biocompatibility of titanium. Despite the wide range of applications of titanium alloys as bone and dental implants, they have a limited service life and imperfect biocompatibility [1][2][3]. Currently, the leaders of titanium alloys in biomedical applications are Ti4V6Al, stainless steel, CoCrMo, and TiNi alloys [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…Asl et al observed on a series of Ti-Mo alloys manufactured by the spark plasma sintering of pure powders that the maximum hardness is reached at 16 wt.% Mo [1]. With the help of nanoindentation, it was found that the hardest (β-phase) and the softest (α-phase) belong to a sample with 12 wt.% Mo.…”

Section: Introductionmentioning

confidence: 99%

Omega Phase Formation and Mechanical Properties of Ti–1.5 wt.% Mo and Ti–15 wt.% Mo Alloys after High-Pressure Torsion

et al. 2023

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The paper analyzes the effect of severe plastic deformation by the high-pressure torsion (HPT) on phase transformations, in particular, on the formation of the ω-phase, and on mechanical properties, such as hardness and Young’s modulus, in Ti alloys with 1.5 and 15 wt.% Mo. Both alloys were pre-annealed at 1000 °C for 24 h and quenched. The microstructure of the initial Ti–1.5 wt.% Mo alloy consisted of the α-phase and α’-martensite, and the initial Ti–15 wt.% Mo alloy contained polycrystalline β solid solution. The hardness tests of the samples were carried out under the load of 10 and 200 mN. The annealed alloys were subjected to HPT, and the micro- and nanohardness of both deformed samples increased up to ~1 GPa compared to their initial state. It turned out that the values of hardness (H) and Young’s modulus (E) depend on the applied load on the indenter: the higher the applied load, the lower H and higher E. It was also found that the HPT leads to the 30% increase in E for an alloy with 1.5 wt.% Mo and to the 9% decrease in E for the alloy with 15 wt.% Mo. Such a difference in the behavior of the Young’s modulus is associated with phase transformations caused by the HPT.

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Nanoindentational and conventional mechanical properties of spark plasma sintered Ti–Mo alloys

Cited by 41 publications

References 48 publications

Dental Implants: Modern Materials and Methods of Their Surface Modification

Dental Implants: Modern Materials and Methods of Their Surface Modification

Microstructure and Mechanical Properties of Co-Deposited Ti-Ni Films Prepared by Magnetron Sputtering

Omega Phase Formation and Mechanical Properties of Ti–1.5 wt.% Mo and Ti–15 wt.% Mo Alloys after High-Pressure Torsion

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