Investigation of a Ti–30Zr binary alloy fabricated through spark plasma sintering

Chávez, J.; Olmos, L.; Jiménez, O.; Alvarado-Hernández, F.; Flores‐Zúñiga, H.; Camarillo-Garcia, Juan-Pablo; Guevara-Martínez, Santiago José

doi:10.1016/j.jmrt.2020.03.110

Cited by 8 publications

(2 citation statements)

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“…So far, the mechanical properties of nonporous titanium alloys prepared by SPS are usually evaluated by the hardness or compressive properties of the alloy. [52,53] Ouyang et al [24] studied Ti-Mg composites prepared by SPS sintering and found that the yield stress of Ti-Mg composites was 634.2 MPa and the ultimate tensile strength was 1156.8 MPa. The fracture elongation at break of Ti-Mg composites was about 20%.…”

Section: Mechanical Properties Of Nonporous Ti-mg Compositesmentioning

confidence: 99%

Strengthening Mechanisms of Ti–Mg Composite for Biomaterials: A Review

Xue,

Luo,

Zhang

et al. 2023

Adv Eng Mater

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Titanium (Ti) has been widely used in biomedical implants due to its excellent mechanical properties and biocompatibility. However, the “stress shielding” effect greatly limits the application of titanium alloys in medical devices. Studies have shown that the incorporation of bioactive elements into the titanium alloy matrix is an effective way to impart specific biological functions to the material through the sustained release of biofunctional elements. Magnesium (Mg) and its alloys have good bioactivity and are potential candidates for biodegradable metal implants. Ti–Mg composites are of increasing interest for biomedical applications. However, the incompatibility between Ti and Mg, such as immiscibility and large melting point difference, has been a great obstacle in preparing Ti–Mg composites. In addition, the biocompatibility of Ti–Mg metal matrix composites in vivo still needs to be further investigated. Herein, the recent research progress of Ti–Mg composites for biomedical implants is reviewed, focusing on their preparation methods and properties. The preparation methods such as powder metallurgy technology and 3D printing are introduced in detail. In addition, the mechanical and corrosion resistance as well as biocompatibility of Ti–Mg composites are discussed. Based on this, the problems and development prospects of Ti–Mg metal matrix composites are presented.

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Section: Mechanical Properties Of Nonporous Ti-mg Compositesmentioning

confidence: 99%

Strengthening Mechanisms of Ti–Mg Composite for Biomaterials: A Review

Xue,

Luo,

Zhang

et al. 2023

Adv Eng Mater

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“…During the sintering process with the higher sintering temperature, the higher plasma capacity was generated by the discharge. This resulted in powders obtaining more energy, which accelerated the movement between metal powders and produced a denser sintered-body alloy [24]. However, when the temperature was even higher (1000 • C), a large number of holes were observed on the surface of the 3 # sample due to the high sintering temperature (Figure 4c).…”

Section: Microhardnessmentioning

confidence: 99%

Synthesis, Characterization and Antimicrobial Studies of Ti-40Nb-10Ag Implant Biomaterials

Zhu

Zhang

Chen

et al. 2022

Metals

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Bacterial infection and stress shielding are important issues in orthopedic implants. In this study, Ag element was selected as an antibacterial agent to develop an antibacterial Ti-40Nb-10Ag alloy by spark plasma sintering (SPS). The microstructure, phase constitution, mechanical properties, microhardness, and antibacterial properties of the Ti-40Nb-10Ag sintered alloys with different sintering temperatures were systematically studied by X-ray diffraction (XRD), scanning electron microscope (SEM), microhardness tests, compressive tests, and antibacterial tests. The Ti-40Nb-10Ag alloys were mainly composed of α-Ti, β-Ti, and Ti2Ag intermetallic phases. This study shows that the change in sintering temperature affects the microstructure of the alloy, which results in changes in its microhardness, compressive strength, elastic modulus, and antibacterial properties. At the sintering temperature of 975 °C, good metallurgical bonding was developed on the surface of the alloy, which led to excellent microhardness, compressive strength, elastic modulus, and antibacterial ability with an antibacterial rate of 95.6%. In conclusion, the Ti-40Nb-10Ag alloy prepared by SPS at 975 °C is ideal and effective for orthopedic implant.

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