不同周期渗银后表面型抗菌不锈钢的组织及性能

发布时间：2018-11-13 07:08

【摘要】：选用银作为抗菌元素,使用双辉离子渗金属技术及活性屏氮碳共渗的复合技术,进行不锈钢表面改性,以期获得长效抗菌表面型不锈钢。文中重点研究了复合工艺中的渗银处理周期对材料组织及性能的影响。试验使用扫描电镜获得样品形貌;能谱检测元素含量;使用压痕及划痕试验定性测量膜层结合力;进行摩擦磨损试验并计算磨损率;进行腐蚀试验评价耐腐蚀性能。渗银及氮碳共渗复合处理的结果发现,一周期试样的膜层结合力优于两周期试样;两种工艺下的试样在进行划痕试验,膜层足以对抗50 N载荷,不致磨穿;一周期及两周期试样的磨损率较未处理不锈钢试样均有所降低;一周期试样的耐腐蚀性能明显优于两周期的。
[Abstract]:Silver was chosen as the antibacterial element. The surface modification of stainless steel was carried out by using the technology of double ionizing metal and the composite technology of active screen nitrocarburizing in order to obtain long-term antibacterial surface stainless steel. In this paper, the effect of the treatment period of silver infiltration on the microstructure and properties of the composite process was studied. SEM was used to obtain the sample morphology; energy spectrum was used to detect the element content; indentation and scratch tests were used to qualitatively measure the adhesion of the film; friction and wear tests were carried out and the wear rate was calculated; corrosion test was carried out to evaluate the corrosion resistance. The results of silver and nitrocarburizing combined treatment show that the adhesion of film layer of one cycle sample is better than that of two cycle specimen, the scratch test of the two kinds of process is carried out, the film layer is enough to resist 50 N load and won't wear through. The wear rate of the first cycle and two cycle specimens is lower than that of the untreated stainless steel samples, and the corrosion resistance of the first cycle specimens is obviously better than that of the two cycle specimens.
【作者单位】：昆明理工大学材料科学与工程学院;广东省新材料研究所现代材料表面工程技术国家工程实验室广东省现代表面工程技术重点实验室;
【基金】：广东省金属材料加工专业镇联合创新公共平台(2013B091602002) 广州市科技计划项目(2013J4500076) 现代表面工程创新平台(2014B070706026)
【分类号】：TG174.445

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