The Characteristic of Fe as a β-Ti Stabilizer in Ti Alloys

Jin, Min; Guo, Yanhua; Niu, Jitai; Cao, Juexian; Sun, Zhonggang; Chang, Hui

doi:10.3390/ma14247516

Cited by 9 publications

(2 citation statements)

References 25 publications

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“…The volume fraction of the β phase is also increased, that is, the segregation of Mo, Fe, and V elements within the β phase is accelerated during deformation. As reported, Fe and Mo elements diffused faster than Al element in titanium [ 54 , 55 ]. The tensile stress promotes the diffusion of β stabilizers from α to β phase, resulting in the α→β phase transformation.…”

Section: Discussionmentioning

confidence: 65%

Microstructure and Texture Evolution during Superplastic Deformation of SP700 Titanium Alloy

Tian

Song

et al. 2022

Materials

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The superplastic tensile test was carried out on SP700 (Ti-4.5Al-3V-2Mo-2Fe) titanium alloy sheet at 760 °C by the method of maximum m value, and the microstructure characteristics were investigated to understand the deformation mechanism. The results indicated that the examined alloy showed an extremely fine grain size of ~1.3 μm and an excellent superplasticity with fracture elongation of up to 3000%. The grain size and the volume fraction of the β phase increased as the strain increased, accompanied by the elements’ diffusion. The β-stabilizing elements (Mo, Fe, and V) were mainly dissolved within the β phase and diffused from α to β phase furthermore during deformation. The increase in strain leads to the accumulation of dislocations, which results in the increase in the proportion of low angle grain boundaries by 15%. As the deformation process, the crystal of α grains rotated, and the texture changed, accompanied by the accumulation of dislocations. The phase boundary (α/β) sliding accommodated by dislocation slip was the predominant mechanism for SP700 alloy during superplastic deformation.

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Section: Discussionmentioning

confidence: 65%

Microstructure and Texture Evolution during Superplastic Deformation of SP700 Titanium Alloy

Tian

Song

et al. 2022

Materials

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“…A-β titanium alloys (such as Ti–6Al–4V, Ti–6Al–7Nb, Ti–5Al2.5Fe) show a high resistance to corrosion and fatigue and find application in cases where a high mechanical load is required, such as ex. as osteosynthesis materials [ 29 , 30 , 31 ].…”

Section: Figurementioning

confidence: 99%

Metals Biotribology and Oral Microbiota Biocorrosion Mechanisms

Contuzzi

Casalino

Boccaccio

et al. 2022

JFB

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During the last decades, metal-based biomaterials have been extensively explored to be used as biocompatible metals for biomedical applications, owing to their superior mechanical properties and corrosion resistance. Consequently, for long-term implanted medical devices, to assure the biomaterials’ reliability, functionality, and biocompatibility, studying the various bio-tribological damage mechanisms to obtain the optimum properties is one of the most important goals. In this review, we consider the most important metal-based biomaterials such as stainless steel, alloys of titanium (Ti), cobalt-chromium (Co-Cr), and Nichel-Titatium (Ni-Ti), as well Magnesium (Mg) alloys and with Tantalum (Ta), emphasizing their characteristics, clinical applications, and deterioration over time. The influence of metal elements on biological safety, including significant effects of metal-based biomaterials in dentistry were discussed, considering the perspectives of surface, mechanical properties, corrosion behaviors, including interactions, bio-mechanisms with tissues, and oral environments. In addition, the role of the oral microbiota was explored due to its role in this erosion condition, in order to further understand the mechanism of metal-based biomaterials implanted on the microflora balance of aerobic and anaerobic bacteria in an oral environment.

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