Mechanical and electrochemical characteristics of thermomechanically treated superelastic Ti – Nb – (Ta, Zr) alloys

Шереметьев, В. А.; Dubinskii, S. M.; Zhukova, Yulia; Braïlovski, Vladimir; Петржик, М. И.; Прокошкин, С. Д.; Pustov, Yu. A.; Филонов, М. Р.

doi:10.1007/s11041-013-9588-6

Cited by 10 publications

(6 citation statements)

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“…During the last decade, a fair number of articles on corrosion and electrochemical behavior of biocompatible β-type Ti-Nb-based alloys have been published (for example [76][77][78][79][80][81][82][83][84][85][86][87][88][89][90][91][92][93]). However, the corrosion resistance of these alloys with added features of superelasticity and shape memory is not sufficiently studied (the number of publication being relatively few [94][95][96][97][98][99][100]), and, therefore, represents an active field of research. More details on this subject can be found in Section 5.…”

Section: Conditions and Perspectives For Shape Memory In Beta Ti Alloysmentioning

confidence: 99%

“…The simulated physiological media for electrochemical tests were as follows. Electrochemical measurements [95][96][97][98][99][100] were carried out with electronic potentiostat IPC-Micro by the open circuit potential (OCP) and polarization diagram measurement methods. Two-electrode or three-electrode cell with divided electrode space was used.…”

Section: Electrochemical Behavior and Biocompatibilitymentioning

confidence: 99%

“…The cohesion strength of Ti-Nb-Ta alloy remains virtually invariable for the annealing temperature of 500 -550°C and decreases when the temperature is increased. The difference in the characteristics of the cohesion strength of the alloys and its variation in opposite directions upon increase in annealing temperature is explainable by the differences in the surface preparation technique (mechanical polishing for Ti-Nb-Ta and electrolytic polishing for Ti-Nb-Zr) [95]. Fig.…”

mentioning

confidence: 99%

“…39. Scratch microstructure in the region of oxide film wear out on the surface of Ti-20.8Nb-5.5Zr (at.%) alloy after annealing at 600°C (1 h) (a) and variation of sensor signals (acoustic emission (AE), friction force (FF), friction coefficient (FC)) during the scratching of Ti-Nb-Zr alloy after annealing at 600°C (1 h) under load growing from 0.9 to 30 N (b) modified from [95]. (at.%) and Ti-20.8Nb-5.5Zr (at.%) alloys surface as a function of PDA temperature [95].…”

mentioning

confidence: 99%

“…. Dependence of the critical load L c causing oxide film wear out on the Ti-19.5Nb-6.5Ta (at.%) and Ti-20.8Nb-5.5Zr (at.%) alloys surface as a function of PDA temperature[95].…”

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confidence: 99%

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Thermomechanical Treatment of Ti-Nb Solid Solution Based SMA

Braïlovski¹,

Прокошкин²,

Inaekyan³

et al. 2015

MSFo

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This Chapter is focused on the Ti-Nb-based shape memory alloys for biomedical applications; the principal objective being to understand interrelations between structure and transformation features, static and dynamic functional properties, and conditions of their thermomechanical treatment. This Chapter includes also preliminary study of the surface characteristics of Ti-Nb-based alloys, including their elemental and phase compositions, tribological characteristics, wettability, electrochemical behaviour, and in vitro biocompatibility. The results obtained make it possible to conclude that Ti-Nb-based shape memory alloys represent one of the strongest candidates for a new generation of load-bearing orthopaedic or dental implants with improved biocompatibility, since they combine high biomechanical compatibility of Ti-Ni shape memory alloys with excellent biochemical compatibility of pure titanium. Abbreviations AES -Auger electron spectroscopyA f (A s ) -Finishing (starting) temperature of the reverse martensitic transformation AG -Aging BCC -Body-centered cubic lattice CR -Cold rolling FCT -Face-centered tetragonal representation of BCC lattice HCP -Hexagonal close packed lattice LP(s) -Lattice parameter (parameters) M s -Starting temperature of the direct martensitic transformation NC -Nanocrystalline structure NS -Nanosubgrained structure OCP -Open circuit potential PDA -Post-deformation annealing RT -Room temperature SBF -Simulated body fluid SCM -X-ray strain-controlled temperature scanning experiment, with loading in the mixed parent (β) + thermally-induced martensite (α") phase state SCP -X-ray strain-controlled temperature scanning experiment, with loading in the parent β phase state SE -Superelasticity SF -X-ray strain-free temperature scanning experiment

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Section: Conditions and Perspectives For Shape Memory In Beta Ti Alloysmentioning

confidence: 99%

Section: Electrochemical Behavior and Biocompatibilitymentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

“…. Dependence of the critical load L c causing oxide film wear out on the Ti-19.5Nb-6.5Ta (at.%) and Ti-20.8Nb-5.5Zr (at.%) alloys surface as a function of PDA temperature[95].…”

mentioning

confidence: 99%

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