The effects of electrochemical polarization condition and applied potential on tribocorrosion behaviors of Inconel 690 alloys in water environment

J. Li, B. B. Yang, Y. H. Lu, L. Xin, Z. H. Wang, Tetsuo Shoji

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

The fretting corrosion behaviors of Inconel 690 in cathodic condition (CC) and anodic condition (AC) in water environment were investigated. The results indicated that fretting wear behavior, wear mechanism and the microstructure evolution mechanisms in the subsurface strongly depended on polarization condition. There was a thin wear debris layer (WDL) and a thick tribologically transformed structure (TTS) without oxidation in CC; while a thick oxidized WDL and a thin complex TTS consisting of nanocrystalline Ni-rich and Cr-rich oxide zones was observed in AC. The micro-cracks formed at the interface of WDL/TTS in CC, while they formed at the interfaces of Ni-rich/Cr-rich oxide zones and TTS/GDL in AC.

Original languageEnglish
Pages (from-to)93-103
Number of pages11
JournalMaterials and Design
Volume119
DOIs
Publication statusPublished - 2017 Apr 5

Keywords

  • Fretting corrosion
  • Nickel
  • Oxidation
  • Polarization

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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