Characterization of the Surface Oxide Film of Nickel-free Austenitic Stainless Steel Located in Simulated Body Environments
Characterization of the Surface Oxide Film of Nickel-free Austenitic Stainless Steel Located in Simulated Body Environments
复制标题
模拟人体环境中无镍奥氏体不锈钢表面氧化膜的表征
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
K. Asami
中科院分区：
文献类型：
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作者：
D. Kuroda;T. Hanawa;S. Hiromoto;Y. Katada;K. Asami
对位于不同环境中的无镍奥氏体不锈钢表面氧化膜进行了表征，以评估氧化膜在人体内的重建。这些标本被抛光，高压灭菌，浸泡在汉克斯的溶液中，浸泡在含有胎牛血清的Eagle最低基本培养液中，并与培养的细胞孵化。用X射线光电子能谱分析了表面氧化膜和衬底的组成及膜的厚度。用俄歇电子能谱结合Ar-Ar离子溅射表征了表面区元素的深度分布。在去离子水中机械抛光的Fe-24.0Cr-1.1Mo-5.1N(at%)无镍奥氏体不锈钢表面氧化膜由铁、铬、钼的氧化物组成，表面氧化膜厚度约为4 nm，含有大量的OH-−。在MEM+FBS中浸泡和L929孵育后，检测到大量来源于氨基酸和蛋白质的碳、氮、氧和硫。硫以亚硫酸盐或硫化物的形式存在。作为合金成分的氮在薄膜下方的衬底中得到了富集。在Hanks和MEM+FBS中浸泡，并与L929孵育后，在薄膜上形成了磷酸钙。
The surface oxide film on the nickel-free austenitic stainless steel located in various environments was characterized to estimate the reconstruction of the film in the human body. The specimens were polished, autoclaved, immersed in Hanks’ solution, immersed in Eagle’s minimum essential medium containing fetal bovine serum, and incubated with cultured cells. X-ray photoelectron spectroscopy was performed to determine the composition of the surface oxide film and substrate and thickness of the film. The depth profiles of elements in the surface region were also characterized using Auger electron spectroscopy in combination with argon-ion-sputtering. The surface oxide film on the nickel-free austenitic stainless steel, Fe‐24.0Cr‐1.1Mo‐5.1N (at%), polished mechanically in deionized water consists of oxidic species of iron, chromium, and molybdenum, thickness of the surface oxide was about 4 nm and contained a large amount of OH − . Large amount of carbon, nitrogen, oxygen, and sulfur originating from amino acids and proteins were detected after immersion in the MEM + FBS and incubation with L929. Sulfur existed as sulfite or sulfide. Nitrogen as alloy component was enriched in the substrate just under the film. Calcium phosphate was formed on the film after immersion in the Hanks and MEM+ FBS and incubation with L929.
影响因子：
14
作者：
HEALY, KE;DUCHEYNE, P
通讯作者：
DUCHEYNE, P