Formation of nano-structured tribolayer on Ti-6Al-4V during sliding in a phosphate buffer saline solution

Document Type : Research Paper

Authors

1 School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

2 School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Iran

3 Ghent University, Department of Electromechanical, Systems and Metal Engineering, Soete Laboratory, Technologiepark 46, B-9052, Zwijnaarde, Ghent, Belgium

10.22059/jufgnsm.2024.02.03

Abstract

The formation of a tribological layer (i.e., tribolayer) affects friction and wear behavior during sliding. The mechanisms involved can be better understood by the characterization of this layer. The wear corrosion behavior of Ti 6Al 4V was studied using a reciprocating ball-on-flat tribometer at a frequency of 1 Hz and under normal loads of 1 N, 5 N, and 15 N against an alumina ball for 3600 cycles of sliding in a phosphate buffer saline (PBS) solution. Scanning Electron Microscopy (SEM) images, along with EDS analysis showed a greater coverage of a tribolayer under a normal load of 15 N. Transmission electron microscopy (TEM) studies indicated that a tribolayer with thickness up to 1000 nm, consisting of nanograins with diameters of less than 10 nm, formed on the deformed wear surface of Ti 6Al 4V under a normal load of 15 N. This protected tribolayer, under normal loads of 5 N and 15 N, resulted in a decrease of 40% in the coefficient of friction and a 15-20% reduction in the specific tribocorrosion rate compared with that at the lower applied load.

Keywords

References

  1.  

    1. Landolt D, Mischler S, Stemp M. Electrochemical methods in tribocorrosion: A critical appraisal. Electrochim Acta 2001;46:3913–29.
    2. Cui WF, Niu FJ, Tan YL, Qin GW. Microstructure and tribocorrosion performance of nanocrystalline TiN graded coating on biomedical titanium alloy. Trans Nonferrous Met Soc China, English Ed 2019;29:1026–35.
    3. Atar E, Kayali ES, Cimenoglu H. Characteristics and wear performance of borided Ti6Al4V alloy. Surf Coatings Technol 2008;202:4583–90.
    4. Namus R, Nutter J, Qi J, Rainforth WM. Sliding speed influence on the tribo-corrosion behaviour of Ti6Al4V alloy in simulated body fluid. Tribol Int 2021;160:107023.
    5. Hutchings I, Shipway P. Tribology: Friction and Wear of Engineering. Elsevier; London, 2017.
    6. Nedfors N, Tengstrand O, Lu J, Eklund P, Persson POÅ, Hultman L, Jansson U. Superhard NbB2-x thin films deposited by dc magnetron sputtering. Surf Coatings Technol 2014;257:295–300.
    7. Qi J, Guan D, Nutter J, Wang B, Rainforth WM. Insights into tribofilm formation on Ti-6V-4Al in a bioactive environment: Correlation between surface modification and micro-mechanical properties. Acta Biomater 2022;141:466–80.
    8. Yazdi R, Ghasemi HM, Abedini M, Wang C, Neville A. Mechanism of tribofilm formation on Ti6Al4V oxygen diffusion layer in a simulated body fluid. J Mech Behav Biomed Mater 2018;77:660–70.
    9. Liu F, Williams S, Fisher J. Effect of microseparation on contact mechanics in metal-on-metal hip replacements - A finite element analysis. J Biomed Mater Res - Part B Appl Biomater, 2015;103:1312–9.
    10. Brand RA, Pedersen DR, Davy DT, Kotzar GM, Heiple KG, Goldberg VM. Comparison of Hip Force Calculations and Measurements in the Same Patient. The Journal of Arthroplasty, 1994;9:45-51.
    11. Rahmatian B, Ghasemi HM, Heydarzadeh Sohi M, De Baets P. Tribocorrosion and corrosion behavior of double borided layers formed on Ti-6Al-4V alloy: An approach for applications to bio-implants. Corros Sci 2023;210:110824.
    12. ASTM F2129–15, "Standard Test Method for Conducting Cyclic Potentiodynamic Polarization Measurements to Determine the Corrosion Susceptibility of Small Implant Devices", 2015.
    13. Stachowiak G., Batchelor A. Engineering Tribology, Elsevier; London, 2013.
    14. Yoshihiro Momose TN. Exoelectron emission from metals subjected to friction and wear, and its relationship to the adsorption of oxygen, water vapor, and some other gases. J Phys Chem, 1978;82:1509–15.
    15. Czichos H. Tribology - A Systems Approach to the Science and Technology of Friction, Lubrication and Wear. vol. 1. Elsevier; Amsterdam, 1977.
    16. Furey MJ, Ghasemi H, Tripathy BS, Kajdas C, Kempinski R, Hellgeth JW. Tribochemistry of the antiwear action of a dimer acid/glycol monoester on alumina. Tribol Trans 1994;37:67–74.
    17. Ghasemi HM, Furey MJ, Kajdas C. Surface temperatures and fretting corrosion of steel under conditions of fretting contact. Wear 1993;162–164:357–69.
    18. Yazdi R, Ghasemi HM, Abedini M, Monshi M. Interplay between mechanical wear and electrochemical corrosion during tribocorrosion of oxygen diffusion layer on Ti–6Al–4V in PBS solution. Appl Surf Sci 2020;518:146048.
    19. Yazdi R, Ghasemi HM, Abedini M, Wang C, Neville A. Tribocorrosion behaviour of Ti6Al4V under various normal loads in phosphate buffered saline solution. Trans Nonferrous Met Soc China, English Ed 2020;30:1300–14.
    20. Gai X, Bai Y, Li J, Li S, Hou W, Hao Y, et al. Electrochemical behaviour of passive film formed on the surface of Ti-6Al-4V alloys fabricated by electron beam melting. Corros Sci 2018;145:80–9.
    21. Alves VA, Reis RQ, Santos ICB, Souza DG, de T, Pereira-da-Silva MA, et al. In situ impedance spectroscopy study of the electrochemical corrosion of Ti and Ti-6Al-4V in simulated body fluid at 25 °C and 37 °C. Corros Sci 2009;51:2473–82.
    22. Johnson KL. Contact Mechanics. Cambridge University Press; Cambridge, 1987.
Journal of Ultrafine Grained and Nanostructured Materials
Volume 57, Issue 2
December 2024
Pages 128-134

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History

  • Receive Date: 12 August 2024
  • Revise Date: 04 October 2024
  • Accept Date: 04 October 2024

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