Electrochemical concepts and techniques in the study of stainless steel Ennoblement

被引:19
作者
Dickinson, WH
Lewandowski, Z
机构
[1] Montana State Univ, Dept Chem, Bozeman, MT 59717 USA
[2] Montana State Univ, Dept Civil Engn, Bozeman, MT 59717 USA
[3] Montana State Univ, Ctr Biofilm Engn, Bozeman, MT 59717 USA
基金
美国国家科学基金会;
关键词
capacitance; corrosion potential; coulometric analysis; Ennoblement; manganese-oxidizing bacteria; stainless steel;
D O I
10.1023/A:1008223930984
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Electrochemical theory and technique used to investigate microbially influenced corrosion is discussed with a focus on methods used to demonstrate the manganic-oxide mechanism of stainless steel Ennoblement. The concept of mixed potential and its relationship to the current-voltage behavior of stainless steel is developed. This concept is used to interpret microbially induced changes in corrosion potential, polarization behavior, surface-oxide abundance, and the redox environment at submerged metal surfaces. Microelectrode, capacitance, and coulometric methods are described that can be used to discriminate electrochemical effects caused by changes in solution properties from those caused by mineral deposition at the metal surface. The variety of electrochemical, wet-chemical, microbiological, and surface analytical techniques used to demonstrate the effect of biomineralized manganese dioxide on the electrochemical behavior of stainless steel are summarized.
引用
收藏
页码:11 / 21
页数:11
相关论文
共 43 条
[1]   ELECTROCATALYSIS AT REDOX POLYMER ELECTRODES WITH SEPARATION OF THE CATALYTIC AND CHARGE PROPAGATION ROLES - REDUCTION OF O-2 TO H2O2 AS CATALYZED BY COBALT(II) TETRAKIS(4-N-METHYLPYRIDYL)PORPHYRIN [J].
ANSON, FC ;
NI, CL ;
SAVEANT, JM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (12) :3442-3450
[2]  
Bard A. J., 1980, ELECTROCHEMICAL METH
[3]   MODIFICATION OF THE STANDARD EPIFLUORESCENCE MICROSCOPIC METHOD FOR TOTAL BACTERIAL COUNTS IN ENVIRONMENTAL-SAMPLES [J].
BITTON, G ;
KOOPMAN, B ;
JUNG, KH ;
VOILAND, G ;
KOTOB, M .
WATER RESEARCH, 1993, 27 (07) :1109-1112
[4]   COLORIMETRIC DETERMINATION OF MANGANESE IN ANOXIC WATERS [J].
BREWER, PG ;
SPENCER, DW .
LIMNOLOGY AND OCEANOGRAPHY, 1971, 16 (01) :107-&
[5]  
CROLET JL, 1991, P 2 EUR FED CORR WOR, P50
[6]  
Dexter Stephen C., 1995, V1, P129
[7]   Evidence for surface changes during ennoblement of type 316L stainless steel: Dissolved oxidant and capacitance measurements [J].
Dickinson, WH ;
Lewandowski, Z ;
Geer, RD .
CORROSION, 1996, 52 (12) :910-920
[8]   Ennoblement of stainless steel by the manganese-depositing bacterium Leptothrix discophora [J].
Dickinson, WH ;
Caccavo, F ;
Olesen, B ;
Lewandowski, Z .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1997, 63 (07) :2502-2506
[9]   The ennoblement of stainless steel by manganic oxide biofouling [J].
Dickinson, WH ;
Caccavo, F ;
Lewandowski, Z .
CORROSION SCIENCE, 1996, 38 (08) :1407-1422
[10]  
DUQUETTE D, 1986, BIOL INDUCED CORROSI, P121