Electrochemical and wear properties of biomedical Ti–Nb–Ag alloy

M. A. Hussein; N. O. Ogunlakin; A. Madhan Kumar; A. A. Sorour; M. A. Azeem

doi:10.1016/j.jmrt.2024.10.220

Electrochemical and wear properties of biomedical Ti–Nb–Ag alloy

M. A. Hussein^*, N. O. Ogunlakin, A. Madhan Kumar^*, A. A. Sorour, M. A. Azeem

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The electrochemical behavior and wear characteristics of a Ti30Nb3Ag (at%) alloy processed with powder metallurgy were investigated for bioimplant applications. A linear reciprocating tribometer was used to assess the tribological properties. Advanced scanning electrochemical microscopic testing was used to investigate the passivation properties and subsequent corrosion protection of the processed Ti30Nb3Ag alloy in a simulated body fluid. Cyclic potentiodynamic polarization and electrochemical impedance spectroscopy tests were performed in both potentio-static and potentiodynamic modes. The results showed that the microstructure of the sintered Ti30Nb3Ag alloy has three phases: β-Ti (BCC), α -Ti (HCP), and Ti₂Ag phase. In comparison to commercial pure Ti and Ti6Al4V alloy, the Ti30Nb3Ag alloy exhibited an enhancement in wear resistance of 86% and 36%, respectively. The microelectrochemical corrosion results confirmed the Ti30Nb3Ag alloy's superior localized corrosion-resistant performance by forming an effective passive layer on the surface, pointedly, R_ct value of Ti30Nb3Ag alloy exhibited 160% improvement compared to that of Ti6Al4V alloy after 24 h of exposure. In comparison to the Ti6Al4V alloy, the Ti30Nb3Ag alloy exhibited enhanced corrosion resistance, increased hardness, and reduced wear rates, indicating a competitive advantage in biomedical applications.

Original language	English
Pages (from-to)	5744-5754
Number of pages	11
Journal	Journal of Materials Research and Technology
Volume	33
DOIs	https://doi.org/10.1016/j.jmrt.2024.10.220
State	Published - 1 Nov 2024

Bibliographical note

Publisher Copyright:
© 2024 The Author(s)

Keywords

Biomaterials
Corrosion
Powder metallurgy
Ti alloy
Wear

ASJC Scopus subject areas

Ceramics and Composites
Biomaterials
Surfaces, Coatings and Films
Metals and Alloys

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10.1016/j.jmrt.2024.10.220

Cite this

@article{b30755de65b941679d1172094099b5c1,

title = "Electrochemical and wear properties of biomedical Ti–Nb–Ag alloy",

abstract = "The electrochemical behavior and wear characteristics of a Ti30Nb3Ag (at%) alloy processed with powder metallurgy were investigated for bioimplant applications. A linear reciprocating tribometer was used to assess the tribological properties. Advanced scanning electrochemical microscopic testing was used to investigate the passivation properties and subsequent corrosion protection of the processed Ti30Nb3Ag alloy in a simulated body fluid. Cyclic potentiodynamic polarization and electrochemical impedance spectroscopy tests were performed in both potentio-static and potentiodynamic modes. The results showed that the microstructure of the sintered Ti30Nb3Ag alloy has three phases: β-Ti (BCC), α -Ti (HCP), and Ti2Ag phase. In comparison to commercial pure Ti and Ti6Al4V alloy, the Ti30Nb3Ag alloy exhibited an enhancement in wear resistance of 86% and 36%, respectively. The microelectrochemical corrosion results confirmed the Ti30Nb3Ag alloy's superior localized corrosion-resistant performance by forming an effective passive layer on the surface, pointedly, Rct value of Ti30Nb3Ag alloy exhibited 160% improvement compared to that of Ti6Al4V alloy after 24 h of exposure. In comparison to the Ti6Al4V alloy, the Ti30Nb3Ag alloy exhibited enhanced corrosion resistance, increased hardness, and reduced wear rates, indicating a competitive advantage in biomedical applications.",

keywords = "Biomaterials, Corrosion, Powder metallurgy, Ti alloy, Wear",

author = "Hussein, {M. A.} and Ogunlakin, {N. O.} and {Madhan Kumar}, A. and Sorour, {A. A.} and Azeem, {M. A.}",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s)",

year = "2024",

month = nov,

day = "1",

doi = "10.1016/j.jmrt.2024.10.220",

language = "English",

volume = "33",

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journal = "Journal of Materials Research and Technology",

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TY - JOUR

T1 - Electrochemical and wear properties of biomedical Ti–Nb–Ag alloy

AU - Hussein, M. A.

AU - Ogunlakin, N. O.

AU - Madhan Kumar, A.

AU - Sorour, A. A.

AU - Azeem, M. A.

PY - 2024/11/1

Y1 - 2024/11/1

N2 - The electrochemical behavior and wear characteristics of a Ti30Nb3Ag (at%) alloy processed with powder metallurgy were investigated for bioimplant applications. A linear reciprocating tribometer was used to assess the tribological properties. Advanced scanning electrochemical microscopic testing was used to investigate the passivation properties and subsequent corrosion protection of the processed Ti30Nb3Ag alloy in a simulated body fluid. Cyclic potentiodynamic polarization and electrochemical impedance spectroscopy tests were performed in both potentio-static and potentiodynamic modes. The results showed that the microstructure of the sintered Ti30Nb3Ag alloy has three phases: β-Ti (BCC), α -Ti (HCP), and Ti2Ag phase. In comparison to commercial pure Ti and Ti6Al4V alloy, the Ti30Nb3Ag alloy exhibited an enhancement in wear resistance of 86% and 36%, respectively. The microelectrochemical corrosion results confirmed the Ti30Nb3Ag alloy's superior localized corrosion-resistant performance by forming an effective passive layer on the surface, pointedly, Rct value of Ti30Nb3Ag alloy exhibited 160% improvement compared to that of Ti6Al4V alloy after 24 h of exposure. In comparison to the Ti6Al4V alloy, the Ti30Nb3Ag alloy exhibited enhanced corrosion resistance, increased hardness, and reduced wear rates, indicating a competitive advantage in biomedical applications.

AB - The electrochemical behavior and wear characteristics of a Ti30Nb3Ag (at%) alloy processed with powder metallurgy were investigated for bioimplant applications. A linear reciprocating tribometer was used to assess the tribological properties. Advanced scanning electrochemical microscopic testing was used to investigate the passivation properties and subsequent corrosion protection of the processed Ti30Nb3Ag alloy in a simulated body fluid. Cyclic potentiodynamic polarization and electrochemical impedance spectroscopy tests were performed in both potentio-static and potentiodynamic modes. The results showed that the microstructure of the sintered Ti30Nb3Ag alloy has three phases: β-Ti (BCC), α -Ti (HCP), and Ti2Ag phase. In comparison to commercial pure Ti and Ti6Al4V alloy, the Ti30Nb3Ag alloy exhibited an enhancement in wear resistance of 86% and 36%, respectively. The microelectrochemical corrosion results confirmed the Ti30Nb3Ag alloy's superior localized corrosion-resistant performance by forming an effective passive layer on the surface, pointedly, Rct value of Ti30Nb3Ag alloy exhibited 160% improvement compared to that of Ti6Al4V alloy after 24 h of exposure. In comparison to the Ti6Al4V alloy, the Ti30Nb3Ag alloy exhibited enhanced corrosion resistance, increased hardness, and reduced wear rates, indicating a competitive advantage in biomedical applications.

KW - Biomaterials

KW - Corrosion

KW - Powder metallurgy

KW - Ti alloy

KW - Wear

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U2 - 10.1016/j.jmrt.2024.10.220

DO - 10.1016/j.jmrt.2024.10.220

M3 - Article

AN - SCOPUS:85207537171

SN - 2238-7854

VL - 33

SP - 5744

EP - 5754

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

ER -

Electrochemical and wear properties of biomedical Ti–Nb–Ag alloy

Abstract

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Keywords

ASJC Scopus subject areas

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