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New insight into the role of microscale residual stresses on initial corrosion behavior of Ti35 alloy

Corrosion Science, ISSN: 0010-938X, Vol: 206, Page: 110491
2022
  • 21
    Citations
  • 0
    Usage
  • 12
    Captures
  • 0
    Mentions
  • 0
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    21
    • Citation Indexes
      21
  • Captures
    12

Article Description

The effect of microscale residual stresses on the initial corrosion behavior of Ti35 alloys in boiling nitric acid solutions was investigated using a combination of electrochemical and immersion tests. The concentration of microscale residual stresses 48 h before corrosion accelerated the dissolution of Ti 2+, Ti 3+, and Ta 5+, as determined by electrochemical impedance spectroscopy measurements and quantitative X-ray photoelectron spectroscopy analysis. After 48 h, the formation of oxide films with consistent compositions and contents (TiO 2 -51%, Ti 2 O 3 -47%, and Ta 2 O 5 -1.9%) prevented the corrosion medium from reaching the outer surface of the metal matrix, reducing the effect of residual stresses on the corrosion behavior.

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