Microstructures and properties of titanium alloys Ti-Mo for dental use

Chen, Yuyong; Xu, Lijuan; Liu, Zhiguang; Kong, Fantao; Chen, Ziyong

doi:10.1016/s1003-6326(06)60308-7

Cited by 62 publications

(31 citation statements)

References 8 publications

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“…Zirconium is in the same titanium's chemical group, being able to improve mechanical strength and biocompatibility in binary Ti-Zr alloys [13,14]. Molybdenum is a strong b-stabilizer, which can decrease the Young's modulus and improve corrosion resistance in binary Ti-Mo alloys [15,16]. Recent biomedical Ti alloy's design has been based on the electronic orbital method and electron/atom ratio approaches, which can result in multi-compositional alloys with tailored properties.…”

Section: Introductionmentioning

confidence: 99%

Development of Ti-15Zr-Mo alloys for applying as implantable biomedical devices

Corrêa

Kuroda

Lourenço

et al. 2018

Journal of Alloys and Compounds

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In this study, the effect of molybdenum content in Ti-15Zr-based alloys (wt%) was analyzed in terms of crystalline structure, microstructure, selected mechanical properties, and cytotoxicity. The samples were produced by argon arc-melting followed by hot rolling and heat treatment processes. The crystalline structure and microstructure were dependent of both alloying elements (zirconium and molybdenum). Ti-15Zr alloy displayed only laths of a 0 phase, while the alloys up to Ti-15Zr-10Mo exhibited different proportions of a 0 , a", and b phases. Molybdenum content higher than 12.5 wt% fully stabilized the b phase. Vickers microhardness values of Ti-15Zr-Mo alloys were higher than those of CP-Ti due to solid solution and phase precipitation strengthening. Young's modulus values of Ti-15Zr-Mo alloys were lower than those of CP-Ti due to b phase stabilization. Cytotoxicity levels of Ti-15Zr-Mo alloys were within a tolerable range for biomedical purposes. In addition, we observed molybdenum content in Ti-15Zr-based alloys promoted an increase on pre-osteoblast adhesion up to 3 h of adhesion's time. Thus, Ti-15Zr-15Mo alloy presented better combination of properties than some traditional metallic biomaterials.

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Section: Introductionmentioning

confidence: 99%

Development of Ti-15Zr-Mo alloys for applying as implantable biomedical devices

Corrêa

Kuroda

Lourenço

et al. 2018

Journal of Alloys and Compounds

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“…Recently, Zhou et al [15] and Oliveira et al [16] reported that Ti-Mo alloys have excellent biocompatibility and corrosion resistance. Chen et al [17] investigated the microstructure, mechanical properties and wear resistance of binary Ti-5Mo used for dental applications. However, its properties were insufficient for clinical applications.…”

Section: Introductionmentioning

confidence: 99%

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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“…Up to now, Ti-15Mo [14] and Ti-7.5Mo alloys [15] have been developed for biomedical applications. However, most previous studies on Ti-Mo alloys were concentrated on the microstructures, phase transformation, and as-cast properties [4,[15][16][17][18][19][20][21][22][23][24][25], and there are few investigations on the corrosion behavior of Ti-Mo alloys which have been subjected to thermomechanical process. On the other hand, Ti alloys often exhibit lower elastic modulus under cold deformation or solution treatment due to the presence of ␣ or/and ␤ phase [4,6,[26][27][28], which is desirable for biomedical applications, therefore the corrosion behavior of Ti alloys including Ti-Mo alloys under such conditions should be investigated if used for biomedical applications.…”

Section: Introductionmentioning

confidence: 99%