Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/94232
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | en_US |
dc.creator | Cao, BX | en_US |
dc.creator | Kong, HJ | en_US |
dc.creator | Ding, ZY | en_US |
dc.creator | Wu, SW | en_US |
dc.creator | Luan, JH | en_US |
dc.creator | Jiao, ZB | en_US |
dc.creator | Lu, J | en_US |
dc.creator | Liu, CT | en_US |
dc.creator | Yang, T | en_US |
dc.date.accessioned | 2022-08-11T01:09:29Z | - |
dc.date.available | 2022-08-11T01:09:29Z | - |
dc.identifier.issn | 1359-6462 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/94232 | - |
dc.language.iso | en | en_US |
dc.publisher | Pergamon Press | en_US |
dc.rights | © 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2021. 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 Cao, B. X., Kong, H. J., Ding, Z. Y., Wu, S. W., Luan, J. H., Jiao, Z. B., ... & Yang, T. (2021). A novel L12-strengthened multicomponent Co-rich high-entropy alloy with both high γ′-solvus temperature and superior high-temperature strength. Scripta Materialia, 199, 113826 is available at https://doi.org/10.1016/j.scriptamat.2021.113826. | en_US |
dc.subject | Co-rich high-entropy alloy | en_US |
dc.subject | High-temperature strength | en_US |
dc.subject | Microstructural stability | en_US |
dc.subject | Solute partitioning | en_US |
dc.title | A novel L1₂-strengthened multicomponent Co-rich high-entropy alloy with both high γ′-solvus temperature and superior high-temperature strength | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 199 | en_US |
dc.identifier.doi | 10.1016/j.scriptamat.2021.113826 | en_US |
dcterms.abstract | A L1₂-strengthened multicomponent Co-rich high-entropy alloy with superior microstructural stability was developed in this study. High-density cuboidal γ′ particles were found to embed in the matrix for the alloy subjected to isothermal aging at temperatures ranging from 800 to 1100 °C without the formation of brittle intermetallic phases neither at grain boundaries nor grain interior after long-term thermal exposure. Atom probe analyses indicated that Ta and Nb elements preferentially partitioned to the γ′ intermetallic phase, which is found to be substantially important for stabilizing the L1₂ ordered crystalline structure. More importantly, the present alloy exhibited a good combination of both high γ′-solvus temperature (1125°C) and low mass density (8.28 g cm−3), together with superb high-temperature tensile strength (755 MPa at 800 °C and 664 MPa at 900 °C). The present findings offer an essential paradigm for designing advanced L1₂-strengthened high-temperature alloys with broader temperature capabilities based on Co. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Scripta materialia, 1 July 2021, v. 199, 113826 | en_US |
dcterms.isPartOf | Scripta materialia | en_US |
dcterms.issued | 2021-07-01 | - |
dc.identifier.scopus | 2-s2.0-85102312296 | - |
dc.identifier.eissn | 1872-8456 | en_US |
dc.identifier.artn | 113826 | en_US |
dc.description.validate | 202208 bchy | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0042 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | CityU Shenzhen Research Institute (SRI); The Hong Kong Polytechnic University | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 46271464 | - |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Ding_Novel_L12-Strengthened_Multicomponent.pdf | Pre-Published version | 1.44 MB | Adobe PDF | View/Open |
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