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SURFACE ANALYSIS OF ALUMINUM ALLOYS INFLUENCED BY SULFATE- REDUCING BACTERIA
被引：4
作者：
X L Wu JH Liu and XY Chen Department of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Beijing China
[100083
]
机构：
关键词：
aluminum alloys;
sulfate reducing bacteria;
pitting;
surface analysis;
D O I：
暂无
中图分类号：
TG172.63 [];
学科分类号：
080503 ;
摘要：
The morphology and chemical compositions of surface and corrosion phases for two aluminum alloys(7075 and 2024 ) in the aqueous mediums containing sulfate reducing bacteria(SRB) were studied by the methods of scanning electron microscopy (SEM) and energy dispersive x ray analysis (EDXA). The results showed that serious pitting corrosion took place when aluminum alloys were exposed in the mediums containing SRB, whereas no pitting corrosion were found on the surfaces of aluminum alloys only exposed in blank mediums non containing SRB. It was demonstrated with EDXA that corrosion of aluminum alloys exposed in the solutions containing SRB, whereas the corrosion in the solution non containing microorganisms was attributed to the presence of chloride ions(Cl ).
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页码：867 / 873
页数：7
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