Efficacy of zinc and tourmaline in mitigating corrosion of carbon steel in non-flow mode

Publisher:
SP Versita
Publication Type:
Journal Article
Citation:
Chemical Papers, 2013, 67 (10), pp. 1304 - 1310
Issue Date:
2013
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Laboratory corrosion immersion tests were carried out to investigate the effectiveness of a physical water treatment (PWT) using zinc and ceramic tourmaline-based catalytic materials for the control of carbon steel corrosion in acidic still water (i.e., pH 4.5–5). The tests were carried out at different water temperatures over 168 h. Our results showed a maximum of 22 % reduction in the corrosion rate using PWT in comparison with the control case. Furthermore, the corrosion products depicted more agglomerated particles after the PWT treatment. In both cases, differences were observed in the crystal structures, showing in general lower corrosion activity when PWT was used. The present results could find potential applications in water distribution systems and where metallic materials are exposed to stagnant acidic water.
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