Corrosion response of stainless steel (SUS316) ground by ELID (Electrolytic In-Process Dressing) grinding method

Translated title of the contribution: Corrosion response of stainless steel (SUS316) ground by ELID (Electrolytic In-Process Dressing) grinding method

Masayoshi Mizutani, Jun Komotori, Jin Nagata, Kazutoshi Katahira, Hitoshi Ohmori

Research output: Contribution to journalArticle

Abstract

To clarify the corrosion resistance of ELID ground stainless steel, electrochemical corrosion tests were carried out using a three electrode electrochemical cell connected to a computer driven potentiostat. Before the tests, morphologies of the finished surfaces were analyzed by a Scanning Electron Microscope (SEM) equipped with an Energy Dispersive X-ray analyzer (EDX) and X-ray Photoelectron Spectroscopy (XPS). A very smooth surface was achieved by the ELID grinding process with the use of extremely fine abrasives. The value of the surface roughness (R a) for the ELID ground sample was similar to that of the sample polished with an alumina powder. The corrosion properties of the ELID ground samples with a smooth surface were superior to those of alumina polished specimens. This was attributed to the ELID grinding, producing a very thick and stable oxide layer which showed a superior corrosion resistance compared to that of the alumina polished samples. Consequently, the ELID process seems to be a promised technology in this forthcoming future for bio-implants and other engineering components used under a corrosive environment.

Original languageJapanese
Pages (from-to)1178-1183
Number of pages6
JournalZairyo/Journal of the Society of Materials Science, Japan
Volume54
Issue number11
DOIs
Publication statusPublished - 2005 Nov

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Keywords

  • Bio-implant
  • Corrosion response
  • ELID grinding method
  • Stainless steel
  • Surface modification

ASJC Scopus subject areas

  • Metals and Alloys
  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics

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