银离子注入马氏体不锈钢表面改性研究  

Surface modification of martensitic stainless steel implanted by silver ions

作　　者：倪红卫[1] 詹玮婷[1] 墙蔷[1] 幸伟[1] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081

出　　处：《材料热处理学报》2009年第1期123-126,144,共5页Transactions of Materials and Heat Treatment

基　　金：国家自然科学基金(50771075);教育部新世纪人才计划项目(NECT-07-0650)

摘　　要：利用MEVVA源强流离子注入机将银离子注入到马氏体不锈钢表面,注入能量和注入剂量分别为100keV和（0.1～8）×1017ions/cm2。选用革兰氏阳性金黄色葡萄球菌和革兰氏阴性大肠杆菌研究了银离子注入不锈钢的抗菌性能,电化学法测定了其耐蚀性能,AES分析了不锈钢注入层中主要元素的浓度分布,讨论了注入剂量与不锈钢抗菌性能及耐蚀性能的关系。研究表明：随银离子注入剂量的增加,银在注入层中的峰值浓度变化不大,但分布深度增加,马氏体不锈钢抗菌性能显著提高。在100keV注入能量、8×1017ions/cm2注入剂量条件下,银离子注入马氏体不锈钢后可以使其具有最佳的抗菌性能,但耐蚀性能略有下降。The silver ion implantation was conducted using a metal vapor vacuum arc （MEVVA） ion source. Silver implantation was carried out at the ion doses of （0. 1～ 8 ） × 10^17 ions/cm2 with the energy of 100keV. The antibacterial properties of the samples were investigated using gram positive Staphylococcus aureus and gram negative Escherichia coli, the anticorrosive properties of the samples were investigated by electrochemical test and auger electronic spectrum（AES） was employed to analyze the distribution of element in materials. The relation of implantation dose with antibacterial properties and anticorrosive properties was discussed. The results show that the top value of silver content in implantation layer exhibits no significant change and the depth of the layer containing silver increases with the increasing implantation dose. Under the implantation dose of 8 × 10^17 ions/cm^2 and implantation energy of 100keV, stainless steel implanted with silver has the optimum antibacterial property with a little loss in anticorrosive property.

关 键 词：银 离子注入 不锈钢 抗菌性能 耐蚀性能 

分 类 号：TG174.444[金属学及工艺—金属表面处理] TG142.71[金属学及工艺—金属学]