Effect of sintering parameters on microstructure, mechanical properties and electrochemical behavior of Nb–Zr alloy for biomedical applications

Hussein, M.A.; Suryanarayana, C.; Arumugam, M.; Al-Aqeeli, N.

doi:10.1016/j.matdes.2015.06.003

Cited by 40 publications

(16 citation statements)

References 41 publications

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“…TEM (Tecnai G Series, USA operated at 200 keV) have been used to investigate the microstructure. After sintering, the alloy density was measured experimentally using a density kit (METTLER Toledo, Zürich, Switzerland) by measuring the density of the sintered alloy in the air and on water [ 56 ]. The reported value was the average of three measurements.…”

Section: Materials and Experimental Workmentioning

confidence: 99%

Electrochemical Corrosion and In Vitro Bioactivity of Nano-Grained Biomedical Ti-20Nb-13Zr Alloy in a Simulated Body Fluid

et al. 2017

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The bioactivity and the corrosion protection for a novel nano-grained Ti-20Nb-13Zr at % alloy were examined in a simulated body fluid (SBF). The effect of the SPS’s temperature on the corrosion performance was investigated. The phases and microstructural details of the developed alloy were analyzed by XRD (X-ray Diffraction), SEM (Scanning Electron Microscopy), and TEM (Transmission Electron Microscope). The electrochemical study was investigated using linear potentiodynamic polarization and electrochemical impedance spectroscopy in a SBF, and the bioactivity was examined by immersing the developed alloy in a SBF for 3, 7, and 14 days. The morphology of the depositions after immersion was examined using SEM. Alloy surface analysis after immersion in the SBF was characterized by XPS (X-ray Photoelectron Spectroscopy). The results of the bioactivity test in SBF revealed the growth of a hydroxyapatite layer on the surface of the alloy. The analysis of XPS showed the formation of protective oxides of TiO2, Ti2O3, ZrO2, Nb2O5, and a Ca3(PO4)2 compound (precursor of hydroxyapatite) deposited on the alloy surface, indicating that the presented alloy can stimulate bone formation. The corrosion resistance increased by increasing the sintering temperature and the highest corrosion resistance was obtained at 1200 °C. The improved corrosion protection was found to be related to the alloy densification. The bioactivity and the corrosion resistance of the developed nanostructured alloy in a SBF renders the nanostructured Ti-20Nb-13Zr alloy a promising candidate as an implant material.

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Section: Materials and Experimental Workmentioning

confidence: 99%

Electrochemical Corrosion and In Vitro Bioactivity of Nano-Grained Biomedical Ti-20Nb-13Zr Alloy in a Simulated Body Fluid

et al. 2017

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“…Nb and Zr are desirable elements in biological systems and biomedical applications thanks to their biocompatibility, resistance to corrosion, mechanical integrity and ionic cytotoxicity. The synthesized nano/sub-micron grain structured Nb-Zr alloy exhibited higher corrosion resistance in Simulated Body Fluids (SBF) medium, implying that these alloy specimens can be used as excellent implant materials [73].…”

Section: Tantalum Alloysmentioning

confidence: 99%

Porous Metallic Biomaterials Processing (Review) Part 1: Compaction, Sintering Behavior, Properties and Medical Applications

Popescu

Vidu

Bratu

2017

Scientific Bulletin of Valahia University - Materials and Mechanics

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“…Biometallic materials are being increasingly used in medical applications as implants [1]. Titanium alloys are the mostly used metallic biomaterials, specifically for biomedical applications [2]. They possess a set of suitable properties such as low specific weight, high corrosion resistance and biocompatibility [3].…”

Section: Introductionmentioning

confidence: 99%

“…This results in improved wear resistance, while the addition of Zr helps in obtaining the solid solution required for achieving the hardness [2]. Most of the work in literature on the development of Ti-based alloys use arc melting and casting techniques [2,3,[6][7][8][9][10][11][12][13]. However, owing to the broad range of melting temperatures in most of these alloys, the use of conventional casting methods becomes limited owing to the lack of homogeneity in the final product [2].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the work in literature on the development of Ti-based alloys use arc melting and casting techniques [2,3,[6][7][8][9][10][11][12][13]. However, owing to the broad range of melting temperatures in most of these alloys, the use of conventional casting methods becomes limited owing to the lack of homogeneity in the final product [2]. Powder metallurgy (PM) processing provides an alternative route for the synthesis of Ti-based alloys consisting of elements with a wide range of melting temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion Behaviour of Ti–34Nb–25Zr Alloy Fabricated by Spark Plasma Sintering

et al. 2020

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Titanium alloys are often used in orthopaedic applications owing to their superior mechanical properties and corrosion resistance. Passive corrosion or material degradation process such as wear has been reported due to the release of titanium and other alloying elements into the surrounding tissue. It is therefore important to study the corrosion behaviour of the alloy in biomedical environments. A sub-micron grain-structured Ti-34Nb-25Zr (TNZ) alloy was fabricated via mechanical alloying (MA) of elementary powders followed by spark plasma sintering (SPS). The electrochemical behaviour of TNZ alloy was investigated at 37 °C for 4 h in three different solutions; the Hank's, the 0.9 wt% NaCl and the eagle minimum essential medium + 10% fetal bovine serum (E-MEM + 10%FBS) solutions. The results show E corr values for TNZ alloy in Hank's, 0.9 wt% NaCl and E-MEM + 10%FBS solutions were about − 202 mV, − 251 mV and − 171 mV, respectively. The measured i corr values were ~ 1.66 nA/cm 2 in hank's solution, which is lower than that in 0.9 wt% NaCl (~ 4.20 nA/cm 2) and E-MEM + 10% FBS solution (~ 3.19 nA/cm 2). TNZ exhibits good corrosion resistance in all the solutions.

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Effect of sintering parameters on microstructure, mechanical properties and electrochemical behavior of Nb–Zr alloy for biomedical applications

Cited by 40 publications

References 41 publications

Electrochemical Corrosion and In Vitro Bioactivity of Nano-Grained Biomedical Ti-20Nb-13Zr Alloy in a Simulated Body Fluid

Electrochemical Corrosion and In Vitro Bioactivity of Nano-Grained Biomedical Ti-20Nb-13Zr Alloy in a Simulated Body Fluid

Porous Metallic Biomaterials Processing (Review) Part 1: Compaction, Sintering Behavior, Properties and Medical Applications

Corrosion Behaviour of Ti–34Nb–25Zr Alloy Fabricated by Spark Plasma Sintering

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