Biocorrosion in a geothermal power plant

被引：0
|
作者：
Navarrete-bedolla, M [1 ]
Ballesteros-Almanza, ML
Sánchez-Yañez, JM
Valdéz-Salas, B
Hernández-Duque, G
机构：
[1] Univ Michoacana, Inst Invest Met, Morelia, Michoacan, Mexico
[2] Univ Michoacana, Inst Invest Quim Biol, Morelia 58240, Michoacan, Mexico
[3] Univ Autonoma Baja California, Inst Ingn, Mexicali 21100, Baja California, Mexico
[4] Univ Mayab, Fac Ingn, Merida, Yucatan, Venezuela
来源：
MATERIALS PERFORMANCE | 1999年 / 38卷 / 04期
关键词：
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Hyperthermophilic archaebacteria (Thermoproteus neutrophilus) promoting the corrosion of type 316 stainless steel (SS) (UNS S31600) in vapor ducts of the Tejamaniles geothermal electric power plant in Los Azufres, Michoacan, Mexico, were isolated from condensed steam. Metallographic analysis and scanning electron microscopy were performed to determine the morphology of microbiological attack on the SS. Electrochemical corrosion tests showed that the bacteria induced corrosion on type 316 SS preferentially at grain boundaries. Large amounts of elemental sulfur and carbon were detected where the bacterial culture was located.
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页码：52 / 56
页数：5
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