RT info:eu-repo/semantics/article
T1 Characterization of the corrosive action of mineral waters from thermal sources: A case study at Azores Archipelago, Portugal
A1 Souto, Ricardo Manuel
A1 Vasconcelos, H. Cristina
A1 Fernández Pérez, Bibiana María
A1 González, Sergio
A1 Santana, Juan José
K1 mineral waters
K1 thermal sources
K1 corrosivity
K1 encrusting power
K1 analytical modelling
K1 electrochemical testing
AB Waters from natural sources of the São Miguel Island in the Azores archipelagohave been investigated regarding their corrosive action on metallic materials. The corrosiveand encrusting characteristics of the waters have been established in terms of relevantchemical parameters (namely pH, conductivity, total dissolved solids (TDS), andconcentrations of bicarbonate, calcium, magnesium, chloride, and sulfate ions) and theirtemperature by using Langelier, Ryznar, Puckorius and Larson–Skold indexes. The validityof this methodology has been tested by measuring the corrosion rates of various metalsexposed to various waters using electrochemical methods. The materials of industrial interest under investigation were carbon and galvanized steel, zinc, 304 and 316L gradestainless steels, brass, and Cr–Ni alloys. The greater aggressiveness of these waters wasfound for the less noble materials, and they experienced high corrosion rates.
YR 2015
FD 2015
LK http://riull.ull.es/xmlui/handle/915/19017
UL http://riull.ull.es/xmlui/handle/915/19017
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 18-may-2024