Corrosion behavior of electropolished and non-electropolished ternary nitinol alloys

W. Haider, N. Munroe, C. Pulletikurthi, P. K.S. Gill

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Electropolishing is a common technique for rendering a smooth mirror-like surface finish to implant materials. It is also known to improve a material's corrosion resistance. A current method to evaluate the corrosion resistance of biomedical implants is based on in-vitro corrosion tests (ASTM F2129-08). Cyclic polarization tests were conducted at 37 °C using phosphate buffer saline (PBS) as an electrolyte to evaluate the corrosion resistance of electropolished and non-electropolished Ni-Ti-Cu and Ni-Ti-Cr alloys. The effects of electropolishing on break down potential (Eb) and the difference between break down potential and rest potential (Er), which is equivalent to the resistance to pitting corrosion were evaluated.

Original languageEnglish
Title of host publication25th Southern Biomedical Engineering Conference 2009
Pages33-34
Number of pages2
DOIs
StatePublished - 2009
Externally publishedYes
Event25th Southern Biomedical Engineering Conference 2009 - Miami, FL, United States
Duration: May 15 2009May 17 2009

Publication series

NameIFMBE Proceedings
Volume24
ISSN (Print)1680-0737

Conference

Conference25th Southern Biomedical Engineering Conference 2009
Country/TerritoryUnited States
CityMiami, FL
Period05/15/0905/17/09

Keywords

  • Corrosion
  • Electropolishing
  • Nitinol
  • Stents

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