Fretting fatigue behaviour of Ni-free high-nitrogen stainless steel in a simulated body fluid

Norio Maruyama, Sachiko Hiromoto, Eiji Akiyama, Morihiko Nakamura

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Fretting fatigue behaviour of Ni-free high-nitrogen steel (HNS) with a yield strength of about 800 MPa, which was prepared by nitrogen gas pressurized electroslag remelting, was studied in air and in phosphate-buffered saline (PBS(-)). For comparison, fretting fatigue behaviour of cold-rolled SUS316L steel (SUS316L(CR)) with similar yield strength was examined. The plain fatigue limit of HNS was slightly lower than that of SUS316L(CR) although the former had a higher tensile strength than the latter. The fretting fatigue limit of HNS was higher than that of SUS316L(CR) both in air and in PBS(-). A decrease in fatigue limit of HNS by fretting was significantly smaller than that of SUS316L(CR) in both environments, indicating that HNS has better fretting fatigue resistance than SUS316L(CR). The decrease in fatigue limit by fretting is discussed taking into account the effect of friction stress due to fretting and the additional influences of wear, tribocorrosion and plastic deformation in the fretted area.

Original languageEnglish
Article number025002
JournalScience and Technology of Advanced Materials
Volume14
Issue number2
DOIs
Publication statusPublished - 2013 Apr
Externally publishedYes

Keywords

  • biomaterials
  • corrosion
  • fatigue
  • fretting
  • high-nitrogen stainless steel
  • salt solution
  • stainless steel

ASJC Scopus subject areas

  • Materials Science(all)

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