Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106467
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | - |
dc.creator | Jiao, ZB | - |
dc.creator | Schuh, CA | - |
dc.date.accessioned | 2024-05-09T00:53:43Z | - |
dc.date.available | 2024-05-09T00:53:43Z | - |
dc.identifier.issn | 1359-6454 | - |
dc.identifier.uri | http://hdl.handle.net/10397/106467 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.rights | © 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Jiao, Z. B., & Schuh, C. A. (2018). Nanocrystalline Ag-W alloys lose stability upon solute desegregation from grain boundaries. Acta Materialia, 161, 194-206 is available at https://doi.org/10.1016/j.actamat.2018.09.014. | en_US |
dc.subject | Ag-W alloys | en_US |
dc.subject | Grain boundary segregation | en_US |
dc.subject | Nanocrystalline alloys | en_US |
dc.subject | Stability | en_US |
dc.title | Nanocrystalline Ag-W alloys lose stability upon solute desegregation from grain boundaries | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 194 | - |
dc.identifier.epage | 206 | - |
dc.identifier.volume | 161 | - |
dc.identifier.doi | 10.1016/j.actamat.2018.09.014 | - |
dcterms.abstract | Alloying has proven an enabling strategy to stabilize nanocrystalline materials against grain growth, especially in cases where the solute segregates to grain boundaries and lowers their energy. Among such materials reported to date, most all are stable up to some temperature at which second phases precipitate, depleting solute from the boundaries. Here in contrast we present a system that loses stability by thermal desegregation of solute back into solution in the grains. Specifically, we explore minor additions of W (0, 0.3, 1.3, and 1.9 at.%) on the grain structure, grain boundary segregation, and thermal stability of nanocrystalline Ag using transmission electron microscopy and atom probe tomography. W is shown to segregate at grain boundaries in electrodeposited nanocrystalline Ag, pushing the onset temperature for grain growth from ∼200 °C up to ∼300 °C. Upon such heating we observe the dissolution of W off the grain boundaries and back into the FCC host lattice, at a temperature in line with thermodynamic expectations on the basis of the segregation isotherm. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Acta materialia, Dec. 2018, v. 161, p. 194-206 | - |
dcterms.isPartOf | Acta materialia | - |
dcterms.issued | 2018-12 | - |
dc.identifier.scopus | 2-s2.0-85053494059 | - |
dc.identifier.eissn | 1873-2453 | - |
dc.description.validate | 202405 bcch | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0561 | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | U.S. Army Research Office; U.S. National Science Foundation; The Hong Kong Polytechnic University | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 21627777 | en_US |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
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File | Description | Size | Format | |
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Jiao_Nanocrystalline_Ag-W_Alloys.pdf | Pre-Published version | 3.44 MB | Adobe PDF | View/Open |
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