Examinations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water.
High-resolution characterizations of intergranular attack in alloy 600 (Ni-17Cr-9Fe) exposed to 325°C simulated pressurized water reactor primary water have been conducted using a combination of scanning electron microscopy, NanoSIMS, analytical transmission electron microscopy, and atom probe tomog...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2013
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| _version_ | 1797072693618540544 |
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| author | Schreiber, D Olszta, M Saxey, D Kruska, K Moore, K Lozano-Perez, S Bruemmer, S |
| author_facet | Schreiber, D Olszta, M Saxey, D Kruska, K Moore, K Lozano-Perez, S Bruemmer, S |
| author_sort | Schreiber, D |
| collection | OXFORD |
| description | High-resolution characterizations of intergranular attack in alloy 600 (Ni-17Cr-9Fe) exposed to 325°C simulated pressurized water reactor primary water have been conducted using a combination of scanning electron microscopy, NanoSIMS, analytical transmission electron microscopy, and atom probe tomography. The intergranular attack exhibited a two-stage microstructure that consisted of continuous corrosion/oxidation to a depth of ~200 nm from the surface followed by discrete Cr-rich sulfides to a further depth of ~500 nm. The continuous oxidation region contained primarily nanocrystalline MO-structure oxide particles and ended at Ni-rich, Cr-depleted grain boundaries with spaced CrS precipitates. Three-dimensional characterization of the sulfidized region using site-specific atom probe tomography revealed extraordinary grain boundary composition changes, including total depletion of Cr across a several nm wide dealloyed zone as a result of grain boundary migration. |
| first_indexed | 2024-03-06T23:11:20Z |
| format | Journal article |
| id | oxford-uuid:65934792-a600-4b80-b12a-582490fb6a6d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:11:20Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:65934792-a600-4b80-b12a-582490fb6a6d2022-03-26T18:26:20ZExaminations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:65934792-a600-4b80-b12a-582490fb6a6dEnglishSymplectic Elements at Oxford2013Schreiber, DOlszta, MSaxey, DKruska, KMoore, KLozano-Perez, SBruemmer, SHigh-resolution characterizations of intergranular attack in alloy 600 (Ni-17Cr-9Fe) exposed to 325°C simulated pressurized water reactor primary water have been conducted using a combination of scanning electron microscopy, NanoSIMS, analytical transmission electron microscopy, and atom probe tomography. The intergranular attack exhibited a two-stage microstructure that consisted of continuous corrosion/oxidation to a depth of ~200 nm from the surface followed by discrete Cr-rich sulfides to a further depth of ~500 nm. The continuous oxidation region contained primarily nanocrystalline MO-structure oxide particles and ended at Ni-rich, Cr-depleted grain boundaries with spaced CrS precipitates. Three-dimensional characterization of the sulfidized region using site-specific atom probe tomography revealed extraordinary grain boundary composition changes, including total depletion of Cr across a several nm wide dealloyed zone as a result of grain boundary migration. |
| spellingShingle | Schreiber, D Olszta, M Saxey, D Kruska, K Moore, K Lozano-Perez, S Bruemmer, S Examinations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water. |
| title | Examinations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water. |
| title_full | Examinations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water. |
| title_fullStr | Examinations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water. |
| title_full_unstemmed | Examinations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water. |
| title_short | Examinations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water. |
| title_sort | examinations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water |
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