CuCoCrFeNi高熵合金的电化学腐蚀性能和抗菌性能研究  

Electrochemical Corrosion Performance and Antimicrobial Propertyof CuCoCrFeNi High-entropy Alloy

作　　者：吴小盼 张伟强[1] 李哲[1] 

机构地区：[1]沈阳理工大学材料科学与工程学院,沈阳110159

出　　处：《沈阳理工大学学报》2016年第6期1-6,共6页Journal of Shenyang Ligong University

基　　金：国家重点基础研究发展计划(973计划)资助项目(2011CB610405)

摘　　要：使用扫描电镜(SEM)、能谱分析(EDS)、X射线衍射和电化学工作站的方法,研究了CuCoCrFeNi合金的微观组织及在不同腐蚀介质中的电化学腐蚀性能。于此同时,使用琼脂平板计数法研究了CuCoCrFeNi合金的抗菌性能。电化学测试结果表明,在1mol/LH_2SO_4溶液中,CuCoCrFeNi合金的腐蚀电流密度比304不锈钢小,耐蚀性好;在3.5%NaCl溶液中,CuCoCrFeNi合金的腐蚀电流密度较304不锈钢大,以点蚀和局部腐蚀为主。抗菌试验结果表明在以大肠杆菌为试验菌、石英片为对照组的条件下,CuCoCrFeNi合金对大肠杆菌具有良好的抗菌效果。The microstructure and electrochemical corrosion resistance of CuCoCrFeNi highentropy alloy in different media were researched by scanning electron microscopy（ SEM） and its energydispersive spectrometry（ EDS）,X-ray diffraction and electrochemical workstation. At the same time,antibacterial property of CuCoCrFeNi alloy was researched by agar plate count method. The results of electrochemical testing show that CuCoCrFeNi alloy has a smaller corrosion current density and thus has a better corrosion resistance,compared to 304 stainless steel in 1 mol / L H2SO4solution; the corrosion current density of CuCoCrFeNi alloy is higher than304 stainless steel in 3. 5 % Na Cl solution,which is mainly based on pitting corrosion and localized corrosion. The result of antibacterial testing shows that CuCoCrFeNi alloy has a good antibacterial effect on Escherichia coli by using Escherichia coli as testing bacteria and quartz plate as the control sample.

关 键 词：高熵合金 微观组织 耐腐蚀性 抗菌性能 

分 类 号：TG172.6[金属学及工艺—金属表面处理] Q939.9[金属学及工艺—金属学]