A comparison of the surface characteristics and ion release of Ti6Al4V and heat-treated Ti6Al4V

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

This work seeks to investigate the nanosurface characteristics and ion release for a Ti6Al4V alloy prepared by various methods (as received and heat treated at 1300°C for 2 h) with three different passivation treatments (34% nitric acid passivation, 400°C heating in air, and aging in 100°C deionized water). The surface and nanosurface composition are not related to the surface passivation treatments and experimental materials as evaluated by energy dispersive spectroscopy and X-ray photoelectron spectroscopy (XPS) analyses. After passivation and autoclaving treatments, the specimens were immersed in 8.0 mM ethylenediaminetetraacetic acid (EDTA) in Hank's solution and maintained at 37°C for periods of time up to 16 days. The 400°C treated specimens exhibit a substantial reduction in constituent release, which may be attributed to the thicker thickness and rutile structure of the surface oxides. After soaking in Hank's-EDTA solution, a significant time-related decrease in constituent release rate is observed for all kinds of specimens throughout the 0-16 day experimental period. The thicker oxides may be a factor in the improved dissolution resistance. Upon immersion, nonelemental Ca and P are both detected on the surfaces of all kinds of specimens by XPS analysis, and this could be explained by the existence of two types of hydroxyl groups (acidic and basic OH groups) on the oxide surface of the specimens. (C) 2000 John Wiley and Sons, Inc.

Original languageEnglish
Pages (from-to)499-511
Number of pages13
JournalJournal of Biomedical Materials Research
Volume50
Issue number4
DOIs
Publication statusPublished - 2000 May 9

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Passivation
Ions
Oxides
Ethylenediaminetetraacetic acid
Edetic Acid
X ray photoelectron spectroscopy
Nitric Acid
Deionized water
Nitric acid
Hydroxyl Radical
Energy dispersive spectroscopy
Dissolution
Aging of materials
Hot Temperature
titanium alloy (TiAl6V4)
Heating
Air
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Biomaterials
  • Biomedical Engineering

Cite this

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title = "A comparison of the surface characteristics and ion release of Ti6Al4V and heat-treated Ti6Al4V",
abstract = "This work seeks to investigate the nanosurface characteristics and ion release for a Ti6Al4V alloy prepared by various methods (as received and heat treated at 1300°C for 2 h) with three different passivation treatments (34{\%} nitric acid passivation, 400°C heating in air, and aging in 100°C deionized water). The surface and nanosurface composition are not related to the surface passivation treatments and experimental materials as evaluated by energy dispersive spectroscopy and X-ray photoelectron spectroscopy (XPS) analyses. After passivation and autoclaving treatments, the specimens were immersed in 8.0 mM ethylenediaminetetraacetic acid (EDTA) in Hank's solution and maintained at 37°C for periods of time up to 16 days. The 400°C treated specimens exhibit a substantial reduction in constituent release, which may be attributed to the thicker thickness and rutile structure of the surface oxides. After soaking in Hank's-EDTA solution, a significant time-related decrease in constituent release rate is observed for all kinds of specimens throughout the 0-16 day experimental period. The thicker oxides may be a factor in the improved dissolution resistance. Upon immersion, nonelemental Ca and P are both detected on the surfaces of all kinds of specimens by XPS analysis, and this could be explained by the existence of two types of hydroxyl groups (acidic and basic OH groups) on the oxide surface of the specimens. (C) 2000 John Wiley and Sons, Inc.",
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A comparison of the surface characteristics and ion release of Ti6Al4V and heat-treated Ti6Al4V. / Lee, T. M.; Chang, E.; Yang, C. Y.

In: Journal of Biomedical Materials Research, Vol. 50, No. 4, 09.05.2000, p. 499-511.

Research output: Contribution to journalArticle

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