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Portugaliae Electrochimica Acta
versión impresa ISSN 0872-1904
Resumen
TRES, G. et al. Online Monitoring of Corrosion in a Liquid-Steam Line Pipe of the Miravalles Geothermal Field. Port. Electrochim. Acta [online]. 2008, vol.26, n.1, pp.101-116. ISSN 0872-1904.
The goal of this study was to evaluate the internal corrosion in a liquid-steam pipeline (type A515 low carbon steel) of the Geothermal Field of Miravalles (CGM) in Costa Rica, and to determine the corrosion thickness for future geothermal fields. The monitoring was carried out using the following techniques: linear polarization resistance (LPR), electrical resistance (ER), and weight loss. The results show for neutral or alkaline pH conditions and slightly free of oxygen, that the corrosion thickness should be 1.8 mm, in order to guarantee the integrity of the pipe over the field lifetime.
Palabras clave : erosion; LPR; ER; gravimetric method; ultrasound.