Corrosion fatigue of welded titanium in sea water

Päivi Rahko, Irina Aho-Mantila, Risto Kuitunen

Research output: Book/ReportReport

Abstract

In this study the applicability of titanium to sea water has been corrosion fatigue tested. The test specimens were unalloyed titanium welds welded with pure or air contaminated argon. The latter simulates the situation, in which the shielding is not effective enough. The crack growth rates in sea water were compared with the crack growth rates in air atmosphere. Unalloyed titanium weld material as well as air contaminated weld material showed higher crack growth rates in sea water than in air. The difference was more pronounced in the air contaminated weld material. The possible effect of the sea water environment on the fatigue crack growth rates should be considered in the design and fabrication of titanium components. A special arrangement for measuring the crack opening of the specimen tested in sea water was developed for corrosion fatigue tests.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages30
ISBN (Print)951-38-3870-6
Publication statusPublished - 1991
MoE publication typeNot Eligible

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tiedotteita
Number1239
ISSN0358-5085

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Keywords

  • titanium
  • welded joints
  • corrosion fatigue
  • crack propagation
  • cracking (fracturing)
  • fatigue (materials)
  • sea water
  • environments
  • fatigue tests
  • shielded arc welding

Cite this

Rahko, P., Aho-Mantila, I., & Kuitunen, R. (1991). Corrosion fatigue of welded titanium in sea water. VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tiedotteita, No. 1239