THE ELECTROCHEMICAL BEHAVIOR OF OCEANIC MICROBIOLOGICAL INFLUENCED CORROSION ON CARBON STEEL  

作　　者：X.T. Chang Y.S. Yin G.H. Niu T. Liu S. Cheng S.B. Sun 

机构地区：[1]Institute of Materials Science and Technology, Ocean University of China, Qingdao 266003, China [2]College of Materials Science and Technology, Shandong University, Jinan 250061, China

出　　处：《Acta Metallurgica Sinica(English Letters)》2007年第5期334-340,共7页金属学报（英文版）

基　　金：supported by the Shandong Provincial Doctoral Foundation of China(No.2006BS04021);National Natural Science Foundation of China(No.50672090);Technological Generalship Project of Qingdao(No.05-2-JC-76)

摘　　要：The corrosion behavior of carbon steel in the medium of marine microorganisms was investigated by electrochemical impedance spectra, polarization curves, and so on. Experimental results showed that the corrosion potential of carbon steel moved in a negative direction in the unpurified marine microorganism solution, and the polarization style of the cathodic process did not change. The electrochemical impedance spectra showed that the impedance value of the electrode decreased in the medium with bacteria, which indicated that the existence of microorganism could accelerate the corrosion progress of carbon steel.The corrosion behavior of carbon steel in the medium of marine microorganisms was investigated by electrochemical impedance spectra, polarization curves, and so on. Experimental results showed that the corrosion potential of carbon steel moved in a negative direction in the unpurified marine microorganism solution, and the polarization style of the cathodic process did not change. The electrochemical impedance spectra showed that the impedance value of the electrode decreased in the medium with bacteria, which indicated that the existence of microorganism could accelerate the corrosion progress of carbon steel.

关 键 词：carbon steel microbiological influenced corrosion polarization curve electrochemical impedance spectroscopy 

分 类 号：TG142.31[一般工业技术—材料科学与工程]