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使用双辉离子渗金属技术,在304不锈钢基体上进行渗银处理,使得不锈钢获得表面抗菌性。研究了温度、阴极电压、炉压三因素对含银层成分及结构的影响。将摩擦磨损性能及耐腐蚀性能作为评价方法,优化出理想的渗银工艺。使用金相显微镜观察含银层膜层厚度,扫描电镜观察含银层表面形貌,能谱检测截面银含量,使用MS-T3000球-盘摩擦磨损试验机进行磨损性能表征,使用浸泡在浓度为0.9%的Na Cl溶液后观察试样形貌的方法进行耐腐蚀性能表征。结果发现,使用双层辉光离子渗银工艺制备的含银层表面合金原子排列致密,含银层由沉积层构成。膜层表面形貌、银含量及膜厚对摩擦磨损及耐腐蚀性能产生重要影响。最终确定了890℃×3 h的不锈钢渗银工艺最为优异。
The use of double-hull ion-infiltration metal technology, the infiltration of silver on the 304 stainless steel substrate, making the stainless steel surface antimicrobial. The effects of temperature, cathode voltage and furnace pressure on the composition and structure of the silver-containing layer were studied. The friction and wear properties and corrosion resistance as an evaluation method to optimize the ideal silver infiltration process. The thickness of silver-containing layer was observed by optical microscopy, the surface morphology of silver-containing layer was observed by scanning electron microscopy, and the silver content was detected by energy dispersive spectroscopy. The wear performance was characterized by MS-T3000 ball-disk friction and wear tester. 0.9% NaCl solution was observed after the sample morphology corrosion resistance characterization. The results show that the surfaces of silver-containing alloy prepared by the double glow-ion silver infiltration process are densely arranged and the silver-containing layer is composed of the deposited layer. Film surface morphology, silver content and film thickness on the friction and wear and corrosion resistance have a significant impact. The final 890 ℃ × 3 h stainless steel infiltrated the most excellent technology.