Microstructure and mechanical properties of Ti–Zr–Cr biomedical alloys

Wang, Pan; Feng, Yongbao; Liu, Fengchao; Wu, Lihong; Guan, Shaokang

doi:10.1016/j.msec.2015.02.028

Cited by 42 publications

(8 citation statements)

References 42 publications

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“…A similar result was described in the literature with Ti-Zr alloys, in which no secondary phase was detected [39]. Further, the Ti-Zr binary system exhibited a completely solid solution for both the high-temperature ␤ phase and the low-temperaturę phase [40].…”

Section: Microstructural and Mechanical Propertiessupporting

confidence: 88%

Development of binary and ternary titanium alloys for dental implants

et al. 2017

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Section: Microstructural and Mechanical Propertiessupporting

confidence: 88%

Development of binary and ternary titanium alloys for dental implants

et al. 2017

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“…The Ti 15Mo 6Zr alloy mainly consisted of the α′+ β phase. When 1 wt.% Cr or greater was added, the β phase was entirely retained with a bcc crystal structure because the alloying element Cr is known to act as a β Ti-Zr-xCr [25], Ti-10Zr-xCr [18] and Ti-5Mo-xCr [22]. Figure 3 shows typically etched microstructures of Ti 15Mo 6Zr and the series of Ti 15Mo 6Zr xCr alloys under an optical microscope.…”

Section: Phase Identificationmentioning

confidence: 99%

“…Ho et al [26] stated that the dependence of the modulus had a more sensitive effect on the phase/crystal structure than on other factors. It is widely known that the β phase Ti alloys generally have a lower modulus level than the α or α+β phase-type alloys [22][23][24][25][26]. Additionally, the Ti15Mo6Zr2Cr alloy had the lowest elastic, compression and bending moduli, which were lower than that of the Ti15Mo6Zr base alloy.…”

Section: Microhardness (Hv)mentioning

confidence: 99%

“…As mentioned in Introduction to this study, the use of implant materials with lower moduli (closer to that of a human bone) can reduce the stress-shielding effect. Additionally, implants bearing heavy loads must be strong and durable enough to withstand their physiological responsibilities over the years [22][23][24][25][26]. As such, achieving high strength under the conditions of a low elastic modulus that is close to the modulus of the implant's surrounding bone is central to alloy development.…”

Section: Microhardness (Hv)mentioning

confidence: 99%

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Microstructure and Mechanical Properties of Ti-Mo-Zr-Cr Biomedical Alloys by Powder Metallurgy

Elshalakany

Ali

Mata

et al. 2017

J. of Materi Eng and Perform

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Elshalakany, AB.; Ali, S.; A. Amigó Mata; Eessaa, AK.; Mohan, P.; Osman, T.; Amigó, V. (2017). Microstructure and Mechanical Properties of Ti-Mo-Zr-Cr Biomedical Alloys by Powder Metallurgy. ABSTRACTTitanium and its alloys have been widely used as biometals due to their excellent biocompatibility, corrosion resistance and moderate mechanical properties. Ti-15Mo-6Zr based alloys and a series of Ti-15Mo-6Zr-xCr (x = 1, 2, 3, 4 wt. %) alloys were designed and fabricated by powder metallurgy for the first time to develop novel biomedical materials. The microstructure, internal porosity and mechanical properties of the sintered Ti-15Mo-6Zr and Ti-15Mo-6Zr-xCr alloys were investigated using scanning electronic microscopy (SEM) and bending and compression tests. The experimental results indicated that the microstructure and mechanical properties of these alloys changed as different Cr levels were added. The addition of small Cr levels further increased the β-phase stability, improving the properties of the Ti-15Mo-6Zr-xCr alloy. However, all of the alloys had good ductility, and the Ti-15Mo-6Zr-2Cr alloy had lower bending and compression moduli (31 and 23 GPa, respectively) than the Ti-15Mo-6Zr-based alloys (40 and 36 GPa, respectively). Moreover, the Ti-15Mo-6Zr-2Cr alloys exhibited higher bending and compression strength/modulus ratios, which were as large as 48.4 and 52.2, respectively; these were higher than those of the Ti-15Mo-6Zr-based alloy (41.3 and 33.6, respectively). In the search for a better implant material, β phase Ti-15Mo-6Zr-2Cr, with its low modulus, ductile properties, and reasonably high strength, is a promising candidate.

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“…For Ti alloys, the present of phases and their distributions strongly influenced the samples' resultant mechancial properties [9,[14][15][16]. Therefore, the micorstructures of both bottom and top specimens were measured by XRD and OM.…”

Section: Resultsmentioning

confidence: 99%

Effect of Building Height on Microstructure and Mechanical Properties of Big-Sized Ti-6Al-4V Plate Fabricated by Electron Beam Melting

Wang

Nai

Sin

et al. 2015

MATEC Web of Conferences

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Abstract. Electron beam melting (EBM) is a layer by layer additive manufacturing technology, which has the capability of producing near-net shaped parts with complex geometries. It is also suitable for handling high melting point and reactive metallic materials, such as Ti alloy, which is widely used in the aerospace and biomedical applications. The present study focused on the relationship between the microstructure and mechanical properties of big-sized Ti-6Al-4V parts. A plate (6mm×180mm×372mm) was additively manufactured by EBM. The microstructure evolution and variation of mechanical properties were investigated by using the x-ray diffraction, optical microscope, scanning electron microscope and tensile test. The results revealed that with an increasing in the build height, there was a variation in the microstructure and the mechanical properties of the build plate. Although only Į SKDVH DQG D UHODWLYHO\ VPDOO IUDFWLRQ RI ȕ SKDVH were detected in both the bottom and top specimens of the build plate, yield strength and ultimate tensile strength decreased with an increase of build height. This was attributed to the increase of Į lath width which was caused by the different thermal histories along the build height of the plate.

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Microstructure and mechanical properties of Ti–Zr–Cr biomedical alloys

Cited by 42 publications

References 42 publications

Development of binary and ternary titanium alloys for dental implants

Development of binary and ternary titanium alloys for dental implants

Microstructure and Mechanical Properties of Ti-Mo-Zr-Cr Biomedical Alloys by Powder Metallurgy

Effect of Building Height on Microstructure and Mechanical Properties of Big-Sized Ti-6Al-4V Plate Fabricated by Electron Beam Melting

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