材料工程Issue(4)：43-48,6.
硫酸盐还原菌对海底泥中Al-Zn-In-Mg-Ti阳极的腐蚀影响
Effect of Sulphate Reducing Bacteria on Corrosion of Al-Zn-In-Mg-Ti Anode in Marine Sediment
摘要
Abstract
A comparative study about the corrosion behavior of Al-Zn-In-Mg-Ti sacrificial anode in marine sediment without and with sulphate reducing bacteria (SRB) was carried out using electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The electrochemical studies showed that the corrosion potential for samples exposed to sterile marine sediment was higher than that for samples exposed to the SRB-containing marine sediment during the whole experiment; the corrosion of the sample was enhanced sharply in the presence of SRB. SEM images revealed that the presence of localized corrosion morphologies on the surface of sample immersed in the sterile medium as well as in the biotic medium, but the damage in the biotic medium was more severe than that in the sterile medium. EDS analysis showed that the concentration of Al and Zn in the surface film for the sample with SRB was much lower than that for the sample without SRB.关键词
Al-Zn-In-Mg-Ti合金/电化学阻抗谱/硫酸盐还原菌/海泥Key words
Al-Zn-In-Mg-Ti alloy/ electrochemical impedance spectroscopy (EIS) / sulphate reducing bacteria (SRB)/ marine sediment分类
矿业与冶金引用本文复制引用
张杰,刘奉令,李伟华,段继周,翟慎宝,侯保荣..硫酸盐还原菌对海底泥中Al-Zn-In-Mg-Ti阳极的腐蚀影响[J].材料工程,2011,(4):43-48,6.基金项目
国家自然基金资助项目(41006054) （41006054）
中国科学院知识创新工程重要方向项目资助(KZCX2-EW-205) （KZCX2-EW-205）
