Evaluation of fatigue strength of Me-DLC coating on NiTi shape memory alloy for medical applications

Hiroyuki Shiota, Takanori Takeno, Hiroyuki Miki, Toshiyuki Takagi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The fatigue strength of Me-DLC coating on NiTi shape memory alloy was investigated. Me-DLC was deposited on SMA by radio-frequency chemical vapor deposition and co-sputtering of metal target. The fatigue strength of Me-DLC has been evaluated by applying 1% cyclic bending strain. The surfaces of the coating were observed after bending test by using an optical microscope, a scanning electron microscope and an atomic force microscope. In the result of 1% cyclic bending test, fatigue strength was improved by metal addition. The investigated coating can endure the cyclic bending test up to 105.

Original languageEnglish
Pages (from-to)947-952
Number of pages6
JournalInternational Journal of Applied Electromagnetics and Mechanics
Volume33
Issue number3-4
DOIs
Publication statusPublished - 2010

Keywords

  • Diamond-like carbon
  • fatigue strength
  • shape memory alloy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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