中文摘要：

在单一金属离子抗菌性能和作用范围存在不足的基础上,提出了Ag/Zn双元抗菌金属离子注入制备抗菌不锈钢的方法。该方法将有助于抗菌广谱性和抗菌性能的提高,迄今未有双元抗菌金属离子不锈钢的报道。平板菌落计数法表明,Ag/Zn双元离子注入试样对革兰氏阴性大肠杆菌（E.coil）和革兰氏阳性金黄色葡萄球菌（S.aureus）都具有优良的抗菌效果（抗菌率〉99%）;电化学极化曲线表明,注入试样的耐腐蚀性能较未注入试样略有提高;X射线光电子能谱（XPS）、原子力显微镜（AFM）等对离子注入层离子化学状态及微观形貌进行了表征,并初步讨论了注入层性质与抗菌性能之间的关系。

英文摘要：

Antibacterial stainless steel has attracted much attention recently, with the development of the people’s living level and the increasing public awareness on hygiene during daily life. Antibacterial agents such as silver and zinc were the common components in antibacterial stainless steel. However, few reports concerned with two or more antibacterial agents in preparation for antibacterial stainless steel so far. To get antibacterial properties and enhanced corrosion resistance, stainless steel implanted by silver and zinc ions simultaneously was firstly reported in this paper with a metal vapor vacuum arc （MEVVA） source. Standard plate count method was employed to estimate antibacterial properties of Ag/Zn implanted stainless steel, which showed excellent antibacterial activities （〉99%） against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Corrosion resistance was investigated by electrochemical potentiodynamic polarization. The results showed that corrosion resistance of stainless steel was slightly enhanced after Ag/Zn implantation. The implanted layer was characterized by X-ray photoelectron spectroscopy （XPS） and atomic force microscope （AFM）. The Ag3d spectrum associated with metallic silver to silver oxide. And Zn2p spectrum associated with zinc oxide. The surface roughness decreased with the increasing of implantation dose. The relationship between the implantation dose and antibacterial activities was also discussed.