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Carbonate Coatings as Protective Barriers for Pipe Borne Water Transport Material
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作者 Lasisi Ejibunu Umoru abimbola oladipo Oladeji Oluremi Ige 《Journal of Minerals and Materials Characterization and Engineering》 2012年第6期609-617,共9页
This paper presents the report of corrosion prevention study carried out on plain carbon steel lined with calcite, magnesium carbonate and dolomite as coats. Eight samples each of the steel were dipped into solutions ... This paper presents the report of corrosion prevention study carried out on plain carbon steel lined with calcite, magnesium carbonate and dolomite as coats. Eight samples each of the steel were dipped into solutions of CaCO3, CaCO3 and MgCO3, and MgCO3. Pipe borne water obtained from Obafemi Awolowo University, Ile-Ife water works was used as the environment. The corroded sample surfaces were subject to microstructural characterization using optical microscopy technique. The results obtained showed that the steel exhibited minimum corrosion rate of less than 0.5 mm/yr in dolomite, followed by MgCO3 and then by CaCO3 with corrosion rate far above 0.5 mm/yr bench mark. The unlined (control) samples have maximum corrosion rate of 0.8 mm/yr. the microstructures revealed widespread localized attacks and to a uniform corrosion. The dolomite lined samples are recommended for corrosion prevention of plain carbon steel in pipe borne water. 展开更多
关键词 PLAIN carbon steel CALCITE MGCO3 DOLOMITE and Microstructure
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