Corrosion behavior of new quaternary ZrNbTiAl alloys in simulated physiological solution using electrochemical techniques and surface analysis methods

Chelariu, R.; Trincă, Lucia Carmen; Munteanu, Corneliu; Bolat, G.; Sutiman, Daniel; Mareci, Daniel

doi:10.1016/j.electacta.2017.07.157

Cited by 38 publications

(5 citation statements)

References 63 publications

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“…The Mg-0.5Ca-xY alloy was developed using controlled atmosphere induction melting equipment from "Gh. Asachi" Technical University of Iasi, Faculty of Materials Science and Engineering [18,19]. The metallic loading was performed for about 15 grams of Mg-0.5Ca-xY (x= 1 wt% Y, 2 wt% Y, respectively 3 wt%Y) alloy in cylindrical crucibles having a diameter of 20 mm and a height of 40 mm.…”

Section: Methodsmentioning

confidence: 99%

Structural Characterization of Mg-0.5Ca-xY Biodegradable Alloys

Istrate

Munteanu

Lupescu

et al. 2018

KEM

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In recent years, researchers have been able to identify new materials with special properties that can be used in major medical fields. Magnesium-based materials used in orthopedics are an important alternative, being the third generation of biocompatible materials. A biodegradable magnesium-based material has the ability to degrade at a certain rate, is biocompatible, and together with other alloying elements ensures osteointegration. Mg-0.5Ca-xY biodegradable alloys will be developed in an induction melting furnace using ceramic crucibles, melting at 710-720 °C in the controlled atmosphere of 5.0 Ar. SEM analyses and X-ray diffraction reveals the size distribution of Mg-sized grains, with a hexagonal lattice and formation of compounds with the two alloying elements: Mg2Ca, Mg2Y, Mg24Y5uniformly arranged in the α-Mg matrix. The alloying elements influence the microstructure, the size of the α-Mg grains decreasing considerably.

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Section: Methodsmentioning

confidence: 99%

Structural Characterization of Mg-0.5Ca-xY Biodegradable Alloys

Istrate

Munteanu

Lupescu

et al. 2018

KEM

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“…The relatively rough porous characteristics increase the effective surface area exposed to the solution and the inhomogeneous elements distribution interrupt the stability of the passivating oxide film. In the high positive potential, the preexisting passivation might be ruptured and the non-oxidized area could be corroded, 8 so the corrosion current increases consequentially and finally another higher passive film is created.…”

Section: Resultsmentioning

confidence: 99%

“…Zr-containing Ti alloys have been developed for commercial biomaterials. [8][9][10][11][12] It is reported that the elastic modulus of a near β-type Ti-Nb-Zr alloy at room temperature are about [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55] GPa if the alloy composition and heat-treatment conditions are optimized. 10,13,14 This value is close to the elastic modulus of human bones and it is conducive to reducing the stress shielding between natural bones and implants.…”

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confidence: 99%

Electrochemical Behavior in Simulated Physiological Solution of Ti-Nb-Zr-Calcium Pyrophosphate Composite with Enhanced Bioactivity by Spark Plasma Sintering

Zhang

Zhao

Tan

et al. 2018

J. Electrochem. Soc.

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The potential biomedical application near β-type Ti-35Nb-7Zr alloy with different CPP ceramic additions were evaluated in vitro using electrochemical method and osteoblasts co-cultured. A small amount addition of calcium pyrophosphate (CPP) ceramic induced the formation of oxide film on the surface of the composites that can withstand passive layer breakdown and the onset of localized forms of corrosion. But localized breakdown of the oxide layer occurred on composites as the CPP exceeded 20 wt%. Ti-35Nb-7Zr-10CPP exhibits a wide passive range in the polarization curve and gets a higher potential for inducing growth of bone-like apatite and proliferation of osteoblasts on its surface compared to that of the Ti-35Nb-7Zr, CP Ti and Ti6Al4V (TC4) alloys. The favorable cell viability and growth inside the pores of the composites arise from the rough micro-porous surface and the release of bioactive metal-ceramic phase ions into the physiological environment. Novel near β-type Ti-Nb-based alloys have attracted considerable attention for human bone implants due to their good mechanical properties, high corrosion resistance and low toxicity.1-3 Based on the Ti-Nb binary system, several near β-type Ti alloy containing nontoxic elements (Ta, Zr, Mo and Sn) have recently been developed for biomaterials. [4][5][6][7] Among them, Zr received renewed attention for surgical implants because it shows acceptable mechanical strength, satisfactory biocompatibility and corrosion resistance. In addition, Zr is a neutral element when dissolved in Ti and it can improve the strength. Zr-containing Ti alloys have been developed for commercial biomaterials. [8][9][10][11][12] It is reported that the elastic modulus of a near β-type Ti-Nb-Zr alloy at room temperature are about 40-55 GPa if the alloy composition and heat-treatment conditions are optimized. 10,13,14 This value is close to the elastic modulus of human bones (10-30 GPa) and it is conducive to reducing the stress shielding between natural bones and implants.15 Thus, β-type Ti-Nb-Zr alloys are considered to be one of the most promising alloys for biomedical applications. However, the osseointegration property of Ti-Nb-Zr alloys, which is necessary to promote bone tissue compatibility, is poorer than bio-ceramic materials because they are bio-inert. [15][16][17] Calcium pyrophosphate (Ca 2 P 2 O 7 , CPP) 18,19 is a bioactive ceramic material that has recently attracted wide attention in clinical orthopedic and bone repaired implants due to its similar chemical and crystallographic structure to natural bone apatite mineral. Maeda et al. 20 fabricated a CPP-Nb glass-ceramic, which mainly consisted of α-Ca 2 P 2 O 7 , β-Ca 2 P 2 O 7 and Nb 2 O 5 phases. In vitro tests revealed that CPP ceramic could significantly induce the formation and growth of bone-like apatite on the surface of the material. According to a research work from Lin et al., 21 a porous CPP-5 wt% Na 4 P 2 O 7 •10H 2 O ceramic was fabricated by powder sintering, and was implanted into New Zealand Rabbits. The vivo ...

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“…Zirconium is mainly used as a structural material in nuclear applications due to its low absorption of neutrons. Recently, zirconium-based materials have gained attention as structural materials for aerospace, chemical and biomedical applications because of their resistance against corrosion and wear [1]. The combination of acceptable strength, high corrosion resistance and good biocompatibility has made zirconium alloys suitable for biomaterials for orthopedic implants.…”

Section: Introductionmentioning

confidence: 99%

CORROSION BEHAVIOR OF Zr-10Mo ALLOYS IN NIOBIUM-DOPED LACTATE RINGER’S SOLUTION

Prastika

Ambardi

Prajitno

2019

jsmi

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CORROSION BEHAVIOR OF Zr-10Mo ALLOYS IN NIOBIUM-DOPED LACTATE RINGER'S SOLUTION. This research discusses the corrosion behavior of Zr-10Mo alloys in Niobium-doped lactate ringer's solution. The addition of Niobium of 1%, 3% and 5% on Zr-10Mo alloys aims to study the effect of adding Niobium to the hardness, microstructure and corrosion resistance of Zr-Mo alloys. The alloys are made by melting the materials of Zr, Mo and Nb with a certain percentage of weight using single arc melting furnace in Argon atmosphere with high purity and Tungsten eletrodes. The alloys (as cast) are subjected to hardness testing using C-scale rockwell, microstructure using optical microscopy, compounds and phases in the alloys (as cast) using XRD and corrosion testing using polarization method in lactate ringers' solution. The hardness value increases by the addition of Niobium, Zr-10Mo-1Nb alloy of 34 HRC, Zr-10Mo-3Nb alloy of 38 HRC and Zr-10Mo-5Nb alloy of 41.5 HRC. The basketweave-shaped microstructure with the addition of Niobium creates relatively smaller grain size. The value of corrosion rate decrases by the addition of Niobium at the immersion times of 0 minute, 60 minutes and 120 minutes, Zr-10Mo-1Nb alloy of 4.208 mpy, Zr-10Mo-3Nb alloy of 3.538 mpy and Zr-10Mo-5Nb alloy of 2.813 mpy, included in the excellent category (1-5 mpy).

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Corrosion behavior of new quaternary ZrNbTiAl alloys in simulated physiological solution using electrochemical techniques and surface analysis methods

Cited by 38 publications

References 63 publications

Structural Characterization of Mg-0.5Ca-xY Biodegradable Alloys

Structural Characterization of Mg-0.5Ca-xY Biodegradable Alloys

Electrochemical Behavior in Simulated Physiological Solution of Ti-Nb-Zr-Calcium Pyrophosphate Composite with Enhanced Bioactivity by Spark Plasma Sintering

CORROSION BEHAVIOR OF Zr-10Mo ALLOYS IN NIOBIUM-DOPED LACTATE RINGER’S SOLUTION

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