No Cover Image

Journal article 1257 views 331 downloads

The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding

Ronald N. Clark, Justin Searle Orcid Logo, Tomas L. Martin, W.S. Walters, Geraint Williams Orcid Logo

Corrosion Science, Volume: 165, Start page: 108365

Swansea University Authors: Justin Searle Orcid Logo, Geraint Williams Orcid Logo

Check full text

DOI (Published version): 10.1016/j.corsci.2019.108365

Abstract

The role of niobium carbide (NbC) inclusions in directing the initiation of localised corrosion in sensitised 20Cr-25Ni-Nb stainless steel is investigated using a range of in-situ scanning techniques, allowing visualisation of corrosion behaviour over multiple length scales. Volta potential mapping...

Full description

Published in: Corrosion Science
ISSN: 0010-938X 1879-0496
Published: Elsevier BV 2020
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa52970
first_indexed 2019-12-05T13:16:14Z
last_indexed 2025-04-09T03:57:26Z
id cronfa52970
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2025-04-08T12:14:16.7806195</datestamp><bib-version>v2</bib-version><id>52970</id><entry>2019-12-05</entry><title>The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding</title><swanseaauthors><author><sid>0e3f2c3812f181eaed11c45554d4cdd0</sid><ORCID>0000-0003-1101-075X</ORCID><firstname>Justin</firstname><surname>Searle</surname><name>Justin Searle</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>0d8fc8d44e2a3c88ce61832f66f20d82</sid><ORCID>0000-0002-3399-5142</ORCID><firstname>Geraint</firstname><surname>Williams</surname><name>Geraint Williams</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2019-12-05</date><deptcode>EAAS</deptcode><abstract>The role of niobium carbide (NbC) inclusions in directing the initiation of localised corrosion in sensitised 20Cr-25Ni-Nb stainless steel is investigated using a range of in-situ scanning techniques, allowing visualisation of corrosion behaviour over multiple length scales. Volta potential mapping shows NbC inclusions are up to 30&#x2009;mV noble to the matrix, while chromium-depleted grain boundaries are up to 65&#x2009;mV less noble. Corrosion initiation, shown by scanning vibrating electrode technique to comprise highly localised anode sites, is observed at grain boundaries, adjacent to the location of NbC inclusion clusters which remain unaffected by anodic dissolution of the surrounding matrix.</abstract><type>Journal Article</type><journal>Corrosion Science</journal><volume>165</volume><journalNumber/><paginationStart>108365</paginationStart><paginationEnd/><publisher>Elsevier BV</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>0010-938X</issnPrint><issnElectronic>1879-0496</issnElectronic><keywords>A Stainless steel; B AFM; B SEM; C Intergranular corrosion; C Pitting corrosion; C Inclusion</keywords><publishedDay>1</publishedDay><publishedMonth>4</publishedMonth><publishedYear>2020</publishedYear><publishedDate>2020-04-01</publishedDate><doi>10.1016/j.corsci.2019.108365</doi><url/><notes/><college>COLLEGE NANME</college><department>Engineering and Applied Sciences School</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>EAAS</DepartmentCode><institution>Swansea University</institution><apcterm>Not Required</apcterm><funders>We would like to acknowledge the Nuclear Decommissioning Authority for providing PhD funding. Financial support is also acknowledged from EPSRC and the European Social Fund through the Materials and Manufacturing Academy Centre for Doctoral Training at Swansea University. Westing house are thanked for supplying the sample material.</funders><projectreference/><lastEdited>2025-04-08T12:14:16.7806195</lastEdited><Created>2019-12-05T11:12:11.2956680</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Materials Science and Engineering</level></path><authors><author><firstname>Ronald N.</firstname><surname>Clark</surname><order>1</order></author><author><firstname>Justin</firstname><surname>Searle</surname><orcid>0000-0003-1101-075X</orcid><order>2</order></author><author><firstname>Tomas L.</firstname><surname>Martin</surname><order>3</order></author><author><firstname>W.S.</firstname><surname>Walters</surname><order>4</order></author><author><firstname>Geraint</firstname><surname>Williams</surname><orcid>0000-0002-3399-5142</orcid><order>5</order></author></authors><documents><document><filename>52970__16044__36f8e5f744a04e6f9654efd988532505.pdf</filename><originalFilename>clark2019(3).pdf</originalFilename><uploaded>2019-12-05T11:16:51.5293598</uploaded><type>Output</type><contentLength>5350028</contentLength><contentType>application/pdf</contentType><version>Accepted Manuscript</version><cronfaStatus>true</cronfaStatus><embargoDate>2020-11-30T00:00:00.0000000</embargoDate><copyrightCorrect>true</copyrightCorrect><licence>&#xA9; 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2025-04-08T12:14:16.7806195 v2 52970 2019-12-05 The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding 0e3f2c3812f181eaed11c45554d4cdd0 0000-0003-1101-075X Justin Searle Justin Searle true false 0d8fc8d44e2a3c88ce61832f66f20d82 0000-0002-3399-5142 Geraint Williams Geraint Williams true false 2019-12-05 EAAS The role of niobium carbide (NbC) inclusions in directing the initiation of localised corrosion in sensitised 20Cr-25Ni-Nb stainless steel is investigated using a range of in-situ scanning techniques, allowing visualisation of corrosion behaviour over multiple length scales. Volta potential mapping shows NbC inclusions are up to 30 mV noble to the matrix, while chromium-depleted grain boundaries are up to 65 mV less noble. Corrosion initiation, shown by scanning vibrating electrode technique to comprise highly localised anode sites, is observed at grain boundaries, adjacent to the location of NbC inclusion clusters which remain unaffected by anodic dissolution of the surrounding matrix. Journal Article Corrosion Science 165 108365 Elsevier BV 0010-938X 1879-0496 A Stainless steel; B AFM; B SEM; C Intergranular corrosion; C Pitting corrosion; C Inclusion 1 4 2020 2020-04-01 10.1016/j.corsci.2019.108365 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University Not Required We would like to acknowledge the Nuclear Decommissioning Authority for providing PhD funding. Financial support is also acknowledged from EPSRC and the European Social Fund through the Materials and Manufacturing Academy Centre for Doctoral Training at Swansea University. Westing house are thanked for supplying the sample material. 2025-04-08T12:14:16.7806195 2019-12-05T11:12:11.2956680 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Ronald N. Clark 1 Justin Searle 0000-0003-1101-075X 2 Tomas L. Martin 3 W.S. Walters 4 Geraint Williams 0000-0002-3399-5142 5 52970__16044__36f8e5f744a04e6f9654efd988532505.pdf clark2019(3).pdf 2019-12-05T11:16:51.5293598 Output 5350028 application/pdf Accepted Manuscript true 2020-11-30T00:00:00.0000000 true © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
title The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding
spellingShingle The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding
Justin Searle
Geraint Williams
title_short The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding
title_full The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding
title_fullStr The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding
title_full_unstemmed The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding
title_sort The role of niobium carbides in the localised corrosion initiation of 20Cr-25Ni-Nb advanced gas-cooled reactor fuel cladding
author_id_str_mv 0e3f2c3812f181eaed11c45554d4cdd0
0d8fc8d44e2a3c88ce61832f66f20d82
author_id_fullname_str_mv 0e3f2c3812f181eaed11c45554d4cdd0_***_Justin Searle
0d8fc8d44e2a3c88ce61832f66f20d82_***_Geraint Williams
author Justin Searle
Geraint Williams
author2 Ronald N. Clark
Justin Searle
Tomas L. Martin
W.S. Walters
Geraint Williams
format Journal article
container_title Corrosion Science
container_volume 165
container_start_page 108365
publishDate 2020
institution Swansea University
issn 0010-938X
1879-0496
doi_str_mv 10.1016/j.corsci.2019.108365
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description The role of niobium carbide (NbC) inclusions in directing the initiation of localised corrosion in sensitised 20Cr-25Ni-Nb stainless steel is investigated using a range of in-situ scanning techniques, allowing visualisation of corrosion behaviour over multiple length scales. Volta potential mapping shows NbC inclusions are up to 30 mV noble to the matrix, while chromium-depleted grain boundaries are up to 65 mV less noble. Corrosion initiation, shown by scanning vibrating electrode technique to comprise highly localised anode sites, is observed at grain boundaries, adjacent to the location of NbC inclusion clusters which remain unaffected by anodic dissolution of the surrounding matrix.
published_date 2020-04-01T04:56:42Z
_version_ 1837864952389435392
score 11.07004

Similar Items