Efficiency of inhibitors for chloride-induced crevice corrosion of Alloy 22
ABSTRACT Alloy 22 is considered as a candidate for engineered barriers of nuclear repositories. Chloride is the only species present in groundwater that is able to promote crevice corrosion, if severe conditions such as high temperatures and a tight crevice are present. Other species present in grou...
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2012
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Online Access: | http://dx.doi.org/10.1557/opl.2012.622 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1946427412006227 |
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crspringernat:10.1557/opl.2012.622 2023-05-15T15:52:39+02:00 Efficiency of inhibitors for chloride-induced crevice corrosion of Alloy 22 Rincón Ortíz, Mauricio Rodríguez, Martín A. Carranza, Ricardo M. Rebak, Raul B. 2012 http://dx.doi.org/10.1557/opl.2012.622 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1946427412006227 en eng Springer Science and Business Media LLC https://www.cambridge.org/core/terms MRS Proceedings volume 1475 ISSN 0272-9172 1946-4274 General Engineering journal-article 2012 crspringernat https://doi.org/10.1557/opl.2012.622 2022-01-04T16:49:57Z ABSTRACT Alloy 22 is considered as a candidate for engineered barriers of nuclear repositories. Chloride is the only species present in groundwater that is able to promote crevice corrosion, if severe conditions such as high temperatures and a tight crevice are present. Other species present in groundwater have been shown to be inhibitors or non-detrimental species. The objective of this work was to evaluate the efficiency of different species potentially found in groundwaters as possible inhibitors of crevice corrosion of Alloy 22. The crevice corrosion repassivation potential of Alloy 22 was determined in chloride plus inhibitor solutions at 90ºC. The species tested as inhibitors were nitrate, sulfate, carbonate, bicarbonate, chromate, molybdate and tungstate. Nitrate was the most efficient among tested inhibitors. The carbonate was the only species of the carbonate / bicarbonate / carbonic acid equilibrium able to inhibit the chloride-induced crevice corrosion of Alloy 22. Sulfate, chromate and molybdate were moderately good inhibitors. Article in Journal/Newspaper Carbonic acid Springer Nature (via Crossref) MRS Proceedings 1475 |
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Springer Nature (via Crossref) |
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English |
topic |
General Engineering |
spellingShingle |
General Engineering Rincón Ortíz, Mauricio Rodríguez, Martín A. Carranza, Ricardo M. Rebak, Raul B. Efficiency of inhibitors for chloride-induced crevice corrosion of Alloy 22 |
topic_facet |
General Engineering |
description |
ABSTRACT Alloy 22 is considered as a candidate for engineered barriers of nuclear repositories. Chloride is the only species present in groundwater that is able to promote crevice corrosion, if severe conditions such as high temperatures and a tight crevice are present. Other species present in groundwater have been shown to be inhibitors or non-detrimental species. The objective of this work was to evaluate the efficiency of different species potentially found in groundwaters as possible inhibitors of crevice corrosion of Alloy 22. The crevice corrosion repassivation potential of Alloy 22 was determined in chloride plus inhibitor solutions at 90ºC. The species tested as inhibitors were nitrate, sulfate, carbonate, bicarbonate, chromate, molybdate and tungstate. Nitrate was the most efficient among tested inhibitors. The carbonate was the only species of the carbonate / bicarbonate / carbonic acid equilibrium able to inhibit the chloride-induced crevice corrosion of Alloy 22. Sulfate, chromate and molybdate were moderately good inhibitors. |
format |
Article in Journal/Newspaper |
author |
Rincón Ortíz, Mauricio Rodríguez, Martín A. Carranza, Ricardo M. Rebak, Raul B. |
author_facet |
Rincón Ortíz, Mauricio Rodríguez, Martín A. Carranza, Ricardo M. Rebak, Raul B. |
author_sort |
Rincón Ortíz, Mauricio |
title |
Efficiency of inhibitors for chloride-induced crevice corrosion of Alloy 22 |
title_short |
Efficiency of inhibitors for chloride-induced crevice corrosion of Alloy 22 |
title_full |
Efficiency of inhibitors for chloride-induced crevice corrosion of Alloy 22 |
title_fullStr |
Efficiency of inhibitors for chloride-induced crevice corrosion of Alloy 22 |
title_full_unstemmed |
Efficiency of inhibitors for chloride-induced crevice corrosion of Alloy 22 |
title_sort |
efficiency of inhibitors for chloride-induced crevice corrosion of alloy 22 |
publisher |
Springer Science and Business Media LLC |
publishDate |
2012 |
url |
http://dx.doi.org/10.1557/opl.2012.622 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1946427412006227 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
MRS Proceedings volume 1475 ISSN 0272-9172 1946-4274 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1557/opl.2012.622 |
container_title |
MRS Proceedings |
container_volume |
1475 |
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1766387770167656448 |