Titanium-Niobium (Ti-xNb) alloys with high Nb amounts for applications in biomaterials

Published on Dec 4, 2020in Materials Research-ibero-american Journal of Materials1.468
· DOI :10.1590/1980-5373-MR-2020-0405
Bruno Leandro Pereira5
Estimated H-index: 5
(Athlone Institute of Technology),
Carlos Maurício Lepienski26
Estimated H-index: 26
(UFPR: Federal University of Paraná)
+ 8 AuthorsMichael J.D. Nugent13
Estimated H-index: 13
(Athlone Institute of Technology)
#1Yuqing Zhang (Fujian Medical University)H-Index: 1
#2Danni Sun (Fujian Medical University)H-Index: 1
Last. Jiang Chen (Fujian Medical University)H-Index: 2
view all 5 authors...
Binary titanium-niobium (Ti-Nb) alloys have recently been attracted due to low Young's moduli and non-toxic properties. This study explores the influence of low Nb content (0-25 wt%) on the comprehensive parameters of tensile stress-strain relationships (ultimate strength (sigmaUTS), yield strength (sigma0.2) and elastic modulus (E)), surfaces properties (Vickers microhardness, surface roughness (R a), water contact angle (WCA), X-ray diffraction (XRD) and scanning electron microscopy (SEM)), co...
17 CitationsSource
#1Mosab Kaseem (Sejong University)H-Index: 21
#2Han-Choel Choe (Chosun University)H-Index: 3
Abstract This study examined the capability of plasma electrolytic oxidation (PEO) to fabricate an ideal implant porous material for bio-implant applications. For this purpose, the Ti-xNb binary alloys (x = 10, 30, and 50 wt.%) were treated via PEO using a DC power supply at a voltage was fixed to be 280 V for 180 s using an electrolyte composed of calcium acetate and calcium glycerophosphate. The structure of Ti-xNb alloys before PEO was altered from needle-like structure to an equiaxed structu...
19 CitationsSource
#1J.J. Gutiérrez Moreno (UCC: University College Cork)H-Index: 2
#2Matthias Bönisch (TUD: Dresden University of Technology)H-Index: 20
Last. Ch.E. Lekka (UoI: University of Ioannina)H-Index: 16
view all 9 authors...
Abstract A systematic theoretical and experimental study concerning the crystallographic structure and electronic properties of Ti-xNb (x 18.75 at% the β-phase is favoured against all other crystallographic structures in line with the experimental results. Interestingly, at high Nb content the α′ and ω hexagonal phases become unstable due to the electronic band filling close to the Fermi level E F , which is mainly due to Nb-p and Ti-d antibonding hybridizations. On the contrary, in the cubic β-...
27 CitationsSource
#7Qiang Zhao (CAS: Chinese Academy of Sciences)H-Index: 18
Abstract β-Type titanium alloys with a low elastic modulus are a potential strategy to enhance bone remodeling and to mitigate the concern over the risks of osteanabrosis and bone resorption caused by stress shielding, when used to substitute irreversibly impaired hard tissue. Hence, in this study, a Ti–45Nb alloy with low Young's modulus and high strength was developed, and microstructure, mechanical properties, corrosion behaviors, cytocompatibility and in vivo osteo-compatibility of the alloy...
81 CitationsSource
#1Matthias Bönisch (TUD: Dresden University of Technology)H-Index: 20
#2Mariana CalinH-Index: 34
Last. Jürgen Eckert (TUD: Dresden University of Technology)H-Index: 103
view all 5 authors...
Abstract While the current research focus in the search for biocompatible low-modulus alloys is set on β-type Ti-based materials, the potential of fully martensitic Ti-based alloys remains largely unexplored. In this work, the influence of composition and pre-straining on the elastic properties of martensitic binary Ti–Nb alloys was studied. Additionally, the phase formation was compared in the as-cast versus the quenched state. The elastic moduli and hardness of the studied martensitic alloys a...
37 CitationsSource
#1Qizhi Chen (Monash University, Clayton campus)H-Index: 39
#2George Anthony Thouas (Monash University, Clayton campus)H-Index: 26
Abstract Human tissue is structured mainly of self-assembled polymers (proteins) and ceramics (bone minerals), with metals present as trace elements with molecular scale functions. However, metals and their alloys have played a predominant role as structural biomaterials in reconstructive surgery, especially orthopedics, with more recent uses in non-osseous tissues, such as blood vessels. With the successful routine use of a large variety of metal implants clinically, issues associated with long...
989 CitationsSource
#1Matej Kanduč (FU: Free University of Berlin)H-Index: 23
#2Emanuel Schneck (MPG: Max Planck Society)H-Index: 20
Last. Roland R. Netz (FU: Free University of Berlin)H-Index: 77
view all 3 authors...
According to common knowledge, hydrophilic surfaces repel via hydration forces while hydrophobic surfaces attract, but mounting experimental evidence suggests that also hydrophilic surfaces can attract. Using all-atom molecular dynamics simulations at prescribed water chemical potential we study the crossover from hydration repulsion to hydrophobic attraction for planar polar surfaces of varying stiffness and hydrogen-bonding capability. Rescaling the partial charges of the polar surface groups,...
28 CitationsSource
#1Mohamed Abdel-Hady Gepreel (E-JUST: Egypt-Japan University of Science and Technology)H-Index: 10
#2Mitsuo Niinomi (Tohoku University)H-Index: 66
Abstract The design of new low-cost Ti-alloys with high biocompatibility for implant applications, using ubiquitous alloying elements in order to establish the strategic method for suppressing utilization of rare metals, is a challenge. To meet the demands of longer human life and implantation in younger patients, the development of novel metallic alloys for biomedical applications is aiming at providing structural materials with excellent chemical, mechanical and biological biocompatibility. It...
433 CitationsSource
Abstract In this work, we performed comparative studies of the effect of surface preparation of Ti6Al4V and Ti6Al7Nb biomedical alloys and the influence of endothelial cells on their corrosion behaviour in PBS (Phosphate Buffered Saline). Two different methods of surface modification were applied - polishing and sandblasting. The polished Ti6Al7Nb alloy was found to have the best resistance against general corrosion in PBS. It was characterized by the lowest corrosion rate, the widest passive ra...
24 Citations
Titanium alloys are widely used in the manufacture of biomedical implants because they possess an excellent combination of physical properties and outstanding biocompatibility. Today, the most widely used alloy is Ti-6Al-4V, but some studies have reported adverse effects with the long-term presence of Al and V in the body, without mentioning that the elasticity modulus value of this alloy is far superior to the bone. Thus, there is a need to develop new Ti-based alloys without Al and V that have...
15 CitationsSource
Cited By2
#1Andrei Marx Ferreira (USP: University of São Paulo)
#2Marcelo de Aquino Martorano (USP: University of São Paulo)H-Index: 13
Last. Angelo Fernando Padilha (USP: University of São Paulo)H-Index: 26
view all 4 authors...
Abstract null null A Nb-50(wt.)%Ti alloy was melted and remelted in an electron beam furnace and the cast ingot was subsequently deformed into a bar by cold swaging, undergoing a maximum reduction in the area of 90%. Samples of the cold deformed bar were subjected to isochronous annealing cycles for 1 hour in the temperature range between 250 and 1000 oC. The microstructural changes of the samples were monitored by optical microscopy, scanning electron microscopy with backscattered electron diff...
#2Liang-Yu Chen (Jiangsu University)H-Index: 22
Abstract null null This work investigated the corrosion behavior and mechanism of selective laser melted (SLM) Ti35Nb separately using mixed powder (Ti35Nb-M) and pre-alloyed powder (Ti35Nb-P) in Hank’s solution. Both types of samples demonstrate similar corrosion behavior, and double-layered oxide films form on the TiNb regions in both Ti35Nb-M and Ti35Nb-P. However, Ti35Nb-P has more stable oxide films than Ti35Nb-M because the outer porous oxide layer formed on Ti35Nb-P has smaller thickness ...
6 CitationsSource