Abstract
Experience shows that corrosion is the prevailing phenomenon responsible for the degradation of nuclear power plant equipment. Stress corrosion is definitely the main cause, but other forms of localized corrosion can occur, due either to underestimation of factors inducing unexpected behaviour in a selected material, or to the unforeseen formation of an aggressive environment for the material chosen or again to the aftermath of an operation which had not been adequately provided for. These situations are illustrated by describing a few cases of localized corrosion encountered during plant operation or during maintenance work unrelated to the normal operation of the equipment considered. The approach adopted to deal with these problems is defined, against the background of the diversity of the cases examined and the variety of corrosion mechanisms involved. The paper mainly focuses on the most common generic damage modes affecting equipment, these being, apart from stress corrosion, intergranular corrosion and pitting corrosion. Two other forms of localized corrosion are also mentioned, galvanic corrosion and flow-assisted corrosion, with a view to demonstrating that the purpose of expertizing is not simply to analyze an incident and define a remedy, but also to implement in-depth studies providing insight into the phenomena involved
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Citation Formats
Gras, J M.
Examples of expertizing methodologies for localized corrosion in nuclear power plants; Exemples de methodologies d`expertise de cas de corrosion localisee. Rencontres sur les centrales nucleaires.
France: N. p.,
1992.
Web.
Gras, J M.
Examples of expertizing methodologies for localized corrosion in nuclear power plants; Exemples de methodologies d`expertise de cas de corrosion localisee. Rencontres sur les centrales nucleaires.
France.
Gras, J M.
1992.
"Examples of expertizing methodologies for localized corrosion in nuclear power plants; Exemples de methodologies d`expertise de cas de corrosion localisee. Rencontres sur les centrales nucleaires."
France.
@misc{etde_10127160,
title = {Examples of expertizing methodologies for localized corrosion in nuclear power plants; Exemples de methodologies d`expertise de cas de corrosion localisee. Rencontres sur les centrales nucleaires}
author = {Gras, J M}
abstractNote = {Experience shows that corrosion is the prevailing phenomenon responsible for the degradation of nuclear power plant equipment. Stress corrosion is definitely the main cause, but other forms of localized corrosion can occur, due either to underestimation of factors inducing unexpected behaviour in a selected material, or to the unforeseen formation of an aggressive environment for the material chosen or again to the aftermath of an operation which had not been adequately provided for. These situations are illustrated by describing a few cases of localized corrosion encountered during plant operation or during maintenance work unrelated to the normal operation of the equipment considered. The approach adopted to deal with these problems is defined, against the background of the diversity of the cases examined and the variety of corrosion mechanisms involved. The paper mainly focuses on the most common generic damage modes affecting equipment, these being, apart from stress corrosion, intergranular corrosion and pitting corrosion. Two other forms of localized corrosion are also mentioned, galvanic corrosion and flow-assisted corrosion, with a view to demonstrating that the purpose of expertizing is not simply to analyze an incident and define a remedy, but also to implement in-depth studies providing insight into the phenomena involved and enabling types of corrosion likely to occur to be anticipated.}
place = {France}
year = {1992}
month = {Sep}
}
title = {Examples of expertizing methodologies for localized corrosion in nuclear power plants; Exemples de methodologies d`expertise de cas de corrosion localisee. Rencontres sur les centrales nucleaires}
author = {Gras, J M}
abstractNote = {Experience shows that corrosion is the prevailing phenomenon responsible for the degradation of nuclear power plant equipment. Stress corrosion is definitely the main cause, but other forms of localized corrosion can occur, due either to underestimation of factors inducing unexpected behaviour in a selected material, or to the unforeseen formation of an aggressive environment for the material chosen or again to the aftermath of an operation which had not been adequately provided for. These situations are illustrated by describing a few cases of localized corrosion encountered during plant operation or during maintenance work unrelated to the normal operation of the equipment considered. The approach adopted to deal with these problems is defined, against the background of the diversity of the cases examined and the variety of corrosion mechanisms involved. The paper mainly focuses on the most common generic damage modes affecting equipment, these being, apart from stress corrosion, intergranular corrosion and pitting corrosion. Two other forms of localized corrosion are also mentioned, galvanic corrosion and flow-assisted corrosion, with a view to demonstrating that the purpose of expertizing is not simply to analyze an incident and define a remedy, but also to implement in-depth studies providing insight into the phenomena involved and enabling types of corrosion likely to occur to be anticipated.}
place = {France}
year = {1992}
month = {Sep}
}