TY - JOUR
T1 - Atmospheric corrosion of copper exposed to different environments in the region of Valparaiso, Chile
AU - Vera, R.
AU - Araya, R.
AU - Bagnara, M.
AU - Díaz-Gómez, A.
AU - Ossandón, S.
N1 - Publisher Copyright:
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2017/3/1
Y1 - 2017/3/1
N2 - This article presents the results obtained for the atmospheric corrosion of copper after 3 years of exposure at different sites within the region of Valparaiso, Chile. Frames were installed with samples at seven sites located close to the coast and inland. They were accompanied by devices to measure atmospheric chloride and sulphur dioxide content and weather stations to obtain data on temperature, humidity, amount of rainfall and wind speed. The results show a correlation between corrosion rate and the environmental and meteorological conditions in the area, and with the morphology and electrochemical properties of the corrosion product formed on the copper surface. The sites gave corrosivity categories of C5, C4, C3 and C2. The behaviour of corrosion rate was modelled using power function models and neural networks. The main corrosion products were cuprite, posnjankite, covelite and atacamite.
AB - This article presents the results obtained for the atmospheric corrosion of copper after 3 years of exposure at different sites within the region of Valparaiso, Chile. Frames were installed with samples at seven sites located close to the coast and inland. They were accompanied by devices to measure atmospheric chloride and sulphur dioxide content and weather stations to obtain data on temperature, humidity, amount of rainfall and wind speed. The results show a correlation between corrosion rate and the environmental and meteorological conditions in the area, and with the morphology and electrochemical properties of the corrosion product formed on the copper surface. The sites gave corrosivity categories of C5, C4, C3 and C2. The behaviour of corrosion rate was modelled using power function models and neural networks. The main corrosion products were cuprite, posnjankite, covelite and atacamite.
KW - SEM
KW - XRD
KW - atmospheric corrosion
KW - copper
KW - industrial environments
KW - marine environments
KW - patinas
KW - weight loss
UR - http://www.scopus.com/inward/record.url?scp=84985905725&partnerID=8YFLogxK
U2 - 10.1002/maco.201609139
DO - 10.1002/maco.201609139
M3 - Article
AN - SCOPUS:84985905725
VL - 68
SP - 316
EP - 328
JO - Materials and Corrosion
JF - Materials and Corrosion
SN - 0947-5117
IS - 3
ER -