MIC and Cracking of Mild and Stainless Steels
MetadataShow full item record
Microbiologically influenced corrosion (MIC) is basically an electrochemical corrosion in which the extent and severity of the corrosion process is determined by organisms such as, but not limited to, bacteria. This work will discuss both electrochemical and mechanical features of MIC of three types of steels of frequent use, that is, mild, stainless and duplex stainless steels. The bacteria investigated in this study are single-type cultures of marine isolates of sulphate reducing bacteria, iron reducing bacteria as well as their mixed cultures. This is important because in nature, it is the impact of mixed communities of bacteria that can affect corrosion of engineering materials. Also, to the best knowledge of this author, for the first time the stress corrosion cracking of these steels in biotic cultures containing these bacteria have been characterised and compared with abiotic environments. In conducting this research, techniques such as SSRT (for conducting mechanical tests), OCP (as one of the safest electrochemical methods for studying MIC) as well as XRD, EDXA and metallography have been employed.
Showing items related by title, author, creator and subject.
Investigation of the impact of nitrate injection to control sourcing problem in oil reservoir : benefit and side effects on steel materialsHalim, Amalia Yunita (2011)The successful control of reservoir souring by nitrate injection has been well documented in the literature. Recent interest has centred on how nitrate application can increase the corrosion risk in pipelines and metal ...
Short term corrosion monitoring of carbon steel by bio-competitive exclusion of thermophilic sulphate reducing bacteria and nitrate reducing bacteriaHalim, Amalia; Watkin, Elizabeth; Gubner, Rolf (2012)Recent interest has centred on the application of nitrate injection to control reservoir souring. In the present study, the impact of nitrate injection on the corrosion of ASTM A572-50 carbon steel was evaluated. The steel ...
Effect of iron corrosion on the fate of dosed copper to inhibit nitrification in chloraminated water distribution systemZhan, Weixi (2011)Nitrification has been acknowledged as one of the major barriers towards efficient chloramination in water supply distribution systems. Many water utilities employing monochloramine as the final disinfectant have been ...