Exploring failure modes of alumina scales on FeCrAl and FeNiCrAl alloys in a nitriding environment
dc.contributor.author | Mortazavi, A.N. | |
dc.contributor.author | Esmaily, M | |
dc.contributor.author | Geers, C | |
dc.contributor.author | Birbilis, Nick | |
dc.contributor.author | Svensson, Jan-Erik | |
dc.contributor.author | Halvarsson, M | |
dc.contributor.author | Chandrasekaran, D | |
dc.contributor.author | Johansson, L.G. | |
dc.date.accessioned | 2023-03-15T01:03:14Z | |
dc.date.available | 2023-03-15T01:03:14Z | |
dc.date.issued | 2020 | |
dc.date.updated | 2022-01-09T07:17:44Z | |
dc.description.abstract | Two high-temperature FeCrAl and FeNiCrAl alloys were exposed in a strongly nitriding environment at 900C and the morphology of nitridation was studied. Quasi-in-situ experiments revealed that nitridation started at specific surface sites directly related to the alloy microstructure where the alumina scale was permeable to nitrogen. FeCrAl alloy grains with (112) orientation formed outward-growing alumina scales and were susceptible to nitridation. Outward-growing scales and substrate nitridation was also observed at chromium carbide precipitates in the FeNiCrAl alloy. Both alloys suffered nitridation at reactive element-rich (Y and Zr) inclusions larger than a certain critical size. The latter type of attack is caused by cracks and pores in the scale. The findings open new avenues of research for developing the next generation of high temperature alloys with superior properties | en_AU |
dc.format.mimetype | application/pdf | en_AU |
dc.identifier.issn | 1359-6454 | en_AU |
dc.identifier.uri | http://hdl.handle.net/1885/287066 | |
dc.language.iso | en_AU | en_AU |
dc.provenance | This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) | en_AU |
dc.publisher | Pergamon Press | en_AU |
dc.rights | © 2020 The Authors. Published by Elsevier Ltd on behalf of Acta Materialia Inc. | en_AU |
dc.rights.license | Creative Commons Attribution-NonCommercial-NoDerivs License | en_AU |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | en_AU |
dc.source | Acta Materialia | en_AU |
dc.subject | High temperature oxidation | en_AU |
dc.subject | NitridationAlumina scale failure | en_AU |
dc.subject | Crystallographic orientation | en_AU |
dc.subject | Reactive elements | en_AU |
dc.title | Exploring failure modes of alumina scales on FeCrAl and FeNiCrAl alloys in a nitriding environment | en_AU |
dc.type | Journal article | en_AU |
dcterms.accessRights | Open Access | en_AU |
local.bibliographicCitation.lastpage | 146 | en_AU |
local.bibliographicCitation.startpage | 131 | en_AU |
local.contributor.affiliation | Mortazavi, A.N. , Harvard University | en_AU |
local.contributor.affiliation | Esmaily, M, Massachusetts Institute of Technology | en_AU |
local.contributor.affiliation | Geers , C, Chalmers University of Technology | en_AU |
local.contributor.affiliation | Birbilis, Nick, College of Engineering and Computer Science, ANU | en_AU |
local.contributor.affiliation | Svensson, Jan-Erik, Chalmers University of Technology | en_AU |
local.contributor.affiliation | Halvarsson, M, Chalmers University of Technology | en_AU |
local.contributor.affiliation | Chandrasekaran, D, Kanthal AB | en_AU |
local.contributor.affiliation | Johansson, L.G. , Chalmers University of Technology | en_AU |
local.contributor.authoremail | u1066695@anu.edu.au | en_AU |
local.contributor.authoruid | Birbilis, Nick, u1066695 | en_AU |
local.description.notes | Imported from ARIES | en_AU |
local.identifier.absfor | 401600 - Materials engineering | en_AU |
local.identifier.ariespublication | a383154xPUB14822 | en_AU |
local.identifier.citationvolume | 201 | en_AU |
local.identifier.doi | 10.1016/j.actamat.2020.09.058 | en_AU |
local.identifier.scopusID | 2-s2.0-85092306899 | |
local.identifier.uidSubmittedBy | a383154 | en_AU |
local.publisher.url | https://www.elsevier.com/en-au | en_AU |
local.type.status | Published Version | en_AU |
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