Abstract:
In the last years, AC corrosion in cathodically protected pipelines has attracted the attention of many professionals and researches. Many studies have shown that the occurrence of AC corrosion depends on the AC current density; the AC frequency; the degree of cathodic protection and on the soil characteristics. In the literature, some criteria have been established in order to access the probability of occurrence of this type of corrosion, but these criteria are not agreed with each other. Moreover, there is no consensus regarding the mechanisms of AC corrosion. The goal of the present work is to understand the mechanisms of AC corrosion and to establish a new criterion for the probability of AC corrosion occurrence.
Reference:
PANOSSIAN, Z.; ABUD FILHO, S.E.; ALMEIDA, N.L, PEREIRA FILHO, M.L.; SILVA, D.L.; LAURINO, E.W.; PAULO, J.; PIMENTA, G.S.C.; ALBERTINI, J.A. Proposição de um mecanismo e de um critério de previsão de corrosão por corrente alternada em dutos enterrados. Petro & Química, v. 326, p. 43-47, ago. 2010.
PANOSSIAN, Z.; ABUD FILHO, S.E. ; ALMEIDA, N.L.; PEREIRA FILHO, M.L; SILVA, D.L; LAURINO, E.W.; OLIVER, J.H.L; PIMENTA, G.S.; ALBERTINI, J.A.C. Proposição de um mecanismo e de um critério de previsão de corrosão por corrente alternada em dutos enterrados. In: CONGRESSO BRASILEIRO DE CORROSÃO, INTERCORR, 28., 2008, Recife. Anais…
Access to the article on the ABRACO website:
https://abraco.org.br/src/uploads/intercorr/2008/INTERCORR2008_106.pdf
In the last years, AC corrosion in cathodically protected pipelines has attracted the attention of many professionals and researches. Many studies have shown that the occurrence of AC corrosion depends on the AC current density; the AC frequency; the degree of cathodic protection and on the soil characteristics. In the literature, some criteria have been established in order to access the probability of occurrence of this type of corrosion, but these criteria are not agreed with each other. Moreover, there is no consensus regarding the mechanisms of AC corrosion. The goal of the present work is to understand the mechanisms of AC corrosion and to establish a new criterion for the probability of AC corrosion occurrence.
Reference:
PANOSSIAN, Z.; ABUD FILHO, S.E.; ALMEIDA, N.L, PEREIRA FILHO, M.L.; SILVA, D.L.; LAURINO, E.W.; PAULO, J.; PIMENTA, G.S.C.; ALBERTINI, J.A. Proposição de um mecanismo e de um critério de previsão de corrosão por corrente alternada em dutos enterrados. Petro & Química, v. 326, p. 43-47, ago. 2010.
PANOSSIAN, Z.; ABUD FILHO, S.E. ; ALMEIDA, N.L.; PEREIRA FILHO, M.L; SILVA, D.L; LAURINO, E.W.; OLIVER, J.H.L; PIMENTA, G.S.; ALBERTINI, J.A.C. Proposição de um mecanismo e de um critério de previsão de corrosão por corrente alternada em dutos enterrados. In: CONGRESSO BRASILEIRO DE CORROSÃO, INTERCORR, 28., 2008, Recife. Anais…
Access to the article on the ABRACO website:
https://abraco.org.br/src/uploads/intercorr/2008/INTERCORR2008_106.pdf
