Abstract
Near-equiatomic (Fe/Pd)n multilayer films were deposited on the surface of medical 316L stainless steel stents by vacuum arc ion plating technology. The crystal structure, morphology and component of (Fe/Pd)n multilayer films were studied by XRD, SEM, and electronic energy spectrum and the phase transformation was also analyzed. The magnetic performances of the samples were detected by CTCC-1 numeral magnetic flux and magnetic field measurement instrument. The results indicate that the optimum structure of superficial magnetic films on medical 316L steel stents is ″Pd/Fe/Pd″. After diffusion heat treatment, (Fe/Pd)n films changed from face-center-cubic (fcc) structure to face-center-tetragonal (fct) structure. The film is uniform with high density and good bonding strength. At the same time, its effective magnetic strength is to up to 5 × 10-4 T for 6 months.
| Original language | English |
|---|---|
| Pages (from-to) | 1437-1440 |
| Number of pages | 4 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 38 |
| Issue number | 8 |
| State | Published - Aug 2009 |
Keywords
- (Fe/Pd) films
- 316L stainless steel
- Arc ion plating
- Magnetic films