Corrosion of the titanium and titanium alloys for biomaterials under fluoride containing environment

Research output: Contribution to journalReview article

4 Citations (Scopus)

Abstract

The corrosion behavior of pure Ti, Ti-6Al-4V, Ti-6Al-7Nb alloys and new Ti- (0.1-2.0) wt%Pt (or Pd) alloys in a fluoride containing environment were examined by anodic polarization and corrosion potential measurements. SEM observation was performed before and after immersion in the test solutions. The artificial saliva containing 0.1% and 0.2% NaF (corresponding to 453 and 905 ppmF) and artificial saliva with a low level of dissolved oxygen were used as the test solutions. In an acidic environment (pH4.0) including fluoride, surfaces were roughened markedly by corrosion for pure Ti and Ti-6Al-4V and Ti-6Al-7Nb alloys, although the surface of Ti-Pt (or Pd) alloys was not affected for the most part. With a low level of dissolved oxygen, surfaces were damaged microscopically by corrosion for pure Ti, Ti-6Al-4V and Ti-6Al-7Nb alloys even with a fluoride concentration included in commercial dentifrices, although the surface of Ti-Pt (or Pd) alloys did not change. The Ti-0.5wt%Pt (or Pd) alloys were expected to be useful as a new Ti alloy with high corrosion resistance in dental use.

Original languageEnglish
Pages (from-to)112-117
Number of pages6
JournalZairyo to Kankyo/ Corrosion Engineering
Volume53
Issue number3
DOIs
Publication statusPublished - Jan 1 2004

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Biocompatible Materials
Titanium
Fluorides
Titanium alloys
Biomaterials
Corrosion
Artificial Saliva
Dissolved oxygen
Dentifrices
Anodic polarization
Corrosion resistance
Scanning electron microscopy
Ti-6Al-7Nb alloy

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrochemistry
  • Materials Chemistry

Cite this

Corrosion of the titanium and titanium alloys for biomaterials under fluoride containing environment. / Nakagawa, Masaharu.

In: Zairyo to Kankyo/ Corrosion Engineering, Vol. 53, No. 3, 01.01.2004, p. 112-117.

Research output: Contribution to journalReview article

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abstract = "The corrosion behavior of pure Ti, Ti-6Al-4V, Ti-6Al-7Nb alloys and new Ti- (0.1-2.0) wt{\%}Pt (or Pd) alloys in a fluoride containing environment were examined by anodic polarization and corrosion potential measurements. SEM observation was performed before and after immersion in the test solutions. The artificial saliva containing 0.1{\%} and 0.2{\%} NaF (corresponding to 453 and 905 ppmF) and artificial saliva with a low level of dissolved oxygen were used as the test solutions. In an acidic environment (pH4.0) including fluoride, surfaces were roughened markedly by corrosion for pure Ti and Ti-6Al-4V and Ti-6Al-7Nb alloys, although the surface of Ti-Pt (or Pd) alloys was not affected for the most part. With a low level of dissolved oxygen, surfaces were damaged microscopically by corrosion for pure Ti, Ti-6Al-4V and Ti-6Al-7Nb alloys even with a fluoride concentration included in commercial dentifrices, although the surface of Ti-Pt (or Pd) alloys did not change. The Ti-0.5wt{\%}Pt (or Pd) alloys were expected to be useful as a new Ti alloy with high corrosion resistance in dental use.",
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