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DC Field | Value | Language |
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dc.contributor.author | Wang, S | - |
dc.contributor.author | Wang, Y | - |
dc.contributor.author | Zhang, Y | - |
dc.contributor.author | Wang, F | - |
dc.contributor.author | Hashimoto, T | - |
dc.contributor.author | Zhou, X | - |
dc.contributor.author | Fan, Z | - |
dc.contributor.author | Ramasse, Q | - |
dc.date.accessioned | 2024-08-29T15:11:08Z | - |
dc.date.available | 2024-08-29T15:11:08Z | - |
dc.date.issued | 2024-08-14 | - |
dc.identifier | ORCiD: Shihao Wang https://orcid.org/0000-0003-2645-2075 | - |
dc.identifier | ORCiD: Yun Wang https://orcid.org/0000-0003-2367-7666 | - |
dc.identifier | ORCiD: Feng Wang https://orcid.org/0000-0002-1597-3708 | - |
dc.identifier | ORCiD: Xiaorong Zhou https://orcid.org/0000-0001-9943-3997 | - |
dc.identifier | ORCiD: Zhongyun Fan https://orcid.org/0000-0003-4079-7336 | - |
dc.identifier | ORCiD: Quentin Ramasse https://orcid.org/0000-0001-7466-2283 | - |
dc.identifier | 116310 | - |
dc.identifier.citation | Wang, S. et al. (2024) 'Segregation of Mg at TiB<inf>2</inf>/Al interface mitigating the Zr-poisoning effect', Scripta Materialia, 253, 116310, pp. 1 - 6. doi: 10.1016/j.scriptamat.2024.116310. | en_US |
dc.identifier.issn | 1359-6462 | - |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/29619 | - |
dc.description | Supplementary materials are available online at: https://www.sciencedirect.com/science/article/pii/S1359646224003452?via%3Dihub#sec0003 . | en_US |
dc.description.abstract | Interfacial segregation can modify a substrate's heterogeneous-nucleation potency. In Al alloys inoculated with TiB2, for instance, Zr segregation degrades TiB2’s nucleation potency and causes the loss of grain refinement, a phenomenon termed the Zr-poisoning effect. Here we use grain-refining tests to demonstrate that the addition of Mg can revive grain refinement from the Zr-poisoning effect. Using advanced transmission electron microscopy, we identify the segregation of Mg at the TiB2/Al interface, which causes the disappearance of the poisoning Ti2Zr two-dimensional compound (2DC). In its place, atomic layers of a nature close to the Al solid, which we term “Al-like layers”, develop, rendering the TiB2 potent again to catalyse the nucleation of α-Al. Thereby, Mg-segregation-modified TiB2 particles are reactivated for heterogeneous nucleation of Al grains. Apart from a mitigation of the Zr-poisoning effect, this work may shed further light on the manipulation of heterogeneous nucleation by atomic engineering of the nucleating substrate. | en_US |
dc.description.sponsorship | The SuperSTEM Laboratory is the UK National Research Facility for Advanced Electron Microscopy, supported by EPSRC under grant number EP/W021080/1. EPSRC is gratefully acknowledged for financial support under grant number EP/N007638/1. SHW gratefully acknowledges the experimental techniques centre (ETC) at Brunel University London for providing access to the facilities. | en_US |
dc.format.extent | 1 - 6 | - |
dc.language | English | - |
dc.language.iso | en_US | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Crown Copyright © 2024. Published by Elsevier Ltd on behalf of Acta Materialia Inc. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/). | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | heterogeneous nucleation | en_US |
dc.subject | grain refinement | en_US |
dc.subject | Zr-poisoning | en_US |
dc.subject | elemental segregation | en_US |
dc.subject | TiB2/Al interface | en_US |
dc.subject | electron microscopy | en_US |
dc.title | Segregation of Mg at TiB<inf>2</inf>/Al interface mitigating the Zr-poisoning effect | en_US |
dc.title.alternative | Segregation of Mg at TiB2/Al interface mitigating the Zr-poisoning effect | en_US |
dc.type | Article | en_US |
dc.date.dateAccepted | 2024-08-05 | - |
dc.identifier.doi | https://doi.org/10.1016/j.scriptamat.2024.116310 | - |
dc.relation.isPartOf | Scripta Materialia | - |
pubs.publication-status | Published | - |
pubs.volume | 253 | - |
dc.identifier.eissn | 1872-8456 | - |
dc.rights.license | https://creativecommons.org/licenses/by/4.0/legalcode.en | - |
dc.rights.holder | Crown / The Authors | - |
Appears in Collections: | Brunel Centre for Advanced Solidification Technology (BCAST) |
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FullText.pdf | Crown Copyright © 2024. Published by Elsevier Ltd on behalf of Acta Materialia Inc. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/). | 8.9 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License