Compressive residual stress into titanium alloy using cavitation shotless peening method

Hitoshi Soyama, Dan O. Macodiyo, Shankar Mall

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Cavitation shotless peening (CSP) method, where impacts are generated by a submerged cavitating jet (without shots), was used to introduce compressive residual stress in titanium alloy, Ti-6Al-4V for the purpose of enhancing the conventional fatigue and fretting fatigue life and strength. This method provided higher compressive stress at surface as well as up to a depth of 40 μm from the surface than that with the shot peening method. Further, the surface treated by CSP was considerably less rough compared to that by the shot peening method, which is a highly desirable feature to improve the fretting fatigue performance.

Original languageEnglish
Pages (from-to)501-504
Number of pages4
JournalTribology Letters
Volume17
Issue number3
DOIs
Publication statusPublished - 2004 Oct 1

Keywords

  • Cavitation
  • Residual stress
  • Roughness
  • Shot peening
  • Surface modification
  • Titanium

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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