摘要
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.
源语言 | 英语 |
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页(从-至) | 1437-1440 |
页数 | 4 |
期刊 | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
卷 | 38 |
期 | 8 |
出版状态 | 已出版 - 8月 2009 |