A multi-technique study of "barrier layer" nano-porosity in Zr oxides during corrosion and hydrogen pickup using (S)TEM, TKD, APT and NanoSIMS
We have used (S)TEM, TKD, NanoSIMS and APT to study nano-porosity in the oxide grown on deuterated Zr-1.0Nb and Zr-2.5Nb alloys. A detailed analysis of “barrier layer” nano-porosity by TEM and TKD has revealed that the oxide grain structure is much more disorganised and the nano-porosity network bet...
| मुख्य लेखकों: | , , , , , , , , , |
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| स्वरूप: | Journal article |
| भाषा: | English |
| प्रकाशित: |
Elsevier
2019
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| _version_ | 1826274917650268160 |
|---|---|
| author | Hu, J Aarholt, T Setiadinata, B Li, K Garner, A Lozano-Perez, S Moody, M Frankel, P Preuss, M Grovenor, C |
| author_facet | Hu, J Aarholt, T Setiadinata, B Li, K Garner, A Lozano-Perez, S Moody, M Frankel, P Preuss, M Grovenor, C |
| author_sort | Hu, J |
| collection | OXFORD |
| description | We have used (S)TEM, TKD, NanoSIMS and APT to study nano-porosity in the oxide grown on deuterated Zr-1.0Nb and Zr-2.5Nb alloys. A detailed analysis of “barrier layer” nano-porosity by TEM and TKD has revealed that the oxide grain structure is much more disorganised and the nano-porosity network better developed in the rapidly oxidising post-transition alloy. Direct observations of the trapped deuterium (D) distributions from NanoSIMS analysis also shows much more penetration of the oxide layer post-transition. APT analysis shows that there is Fe and D segregation to some of the oxide grain boundaries with occasional evidence of porosity containing trapped D and H. We conclude that interconnected porosity would offer a dominant pathway for the transport of hydrogenic species to the metal substrate during the aqueous corrosion of zirconium alloys in service. |
| first_indexed | 2024-03-06T22:50:47Z |
| format | Journal article |
| id | oxford-uuid:5eb4a491-d5b5-4f8c-b385-b1cb094c0617 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:50:47Z |
| publishDate | 2019 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:5eb4a491-d5b5-4f8c-b385-b1cb094c06172022-03-26T17:42:20ZA multi-technique study of "barrier layer" nano-porosity in Zr oxides during corrosion and hydrogen pickup using (S)TEM, TKD, APT and NanoSIMSJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5eb4a491-d5b5-4f8c-b385-b1cb094c0617EnglishSymplectic ElementsElsevier2019Hu, JAarholt, TSetiadinata, BLi, KGarner, ALozano-Perez, SMoody, MFrankel, PPreuss, MGrovenor, CWe have used (S)TEM, TKD, NanoSIMS and APT to study nano-porosity in the oxide grown on deuterated Zr-1.0Nb and Zr-2.5Nb alloys. A detailed analysis of “barrier layer” nano-porosity by TEM and TKD has revealed that the oxide grain structure is much more disorganised and the nano-porosity network better developed in the rapidly oxidising post-transition alloy. Direct observations of the trapped deuterium (D) distributions from NanoSIMS analysis also shows much more penetration of the oxide layer post-transition. APT analysis shows that there is Fe and D segregation to some of the oxide grain boundaries with occasional evidence of porosity containing trapped D and H. We conclude that interconnected porosity would offer a dominant pathway for the transport of hydrogenic species to the metal substrate during the aqueous corrosion of zirconium alloys in service. |
| spellingShingle | Hu, J Aarholt, T Setiadinata, B Li, K Garner, A Lozano-Perez, S Moody, M Frankel, P Preuss, M Grovenor, C A multi-technique study of "barrier layer" nano-porosity in Zr oxides during corrosion and hydrogen pickup using (S)TEM, TKD, APT and NanoSIMS |
| title | A multi-technique study of "barrier layer" nano-porosity in Zr oxides during corrosion and hydrogen pickup using (S)TEM, TKD, APT and NanoSIMS |
| title_full | A multi-technique study of "barrier layer" nano-porosity in Zr oxides during corrosion and hydrogen pickup using (S)TEM, TKD, APT and NanoSIMS |
| title_fullStr | A multi-technique study of "barrier layer" nano-porosity in Zr oxides during corrosion and hydrogen pickup using (S)TEM, TKD, APT and NanoSIMS |
| title_full_unstemmed | A multi-technique study of "barrier layer" nano-porosity in Zr oxides during corrosion and hydrogen pickup using (S)TEM, TKD, APT and NanoSIMS |
| title_short | A multi-technique study of "barrier layer" nano-porosity in Zr oxides during corrosion and hydrogen pickup using (S)TEM, TKD, APT and NanoSIMS |
| title_sort | multi technique study of barrier layer nano porosity in zr oxides during corrosion and hydrogen pickup using s tem tkd apt and nanosims |
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