Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106530
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | - |
dc.creator | Zhu, L | en_US |
dc.creator | Ruan, H | en_US |
dc.creator | Chen, A | en_US |
dc.creator | Guo, X | en_US |
dc.creator | Lu, J | en_US |
dc.date.accessioned | 2024-05-09T00:54:05Z | - |
dc.date.available | 2024-05-09T00:54:05Z | - |
dc.identifier.issn | 1359-6454 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/106530 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.rights | © 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2017. 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 Zhu, L., Ruan, H., Chen, A., Guo, X., & Lu, J. (2017). Microstructures-based constitutive analysis for mechanical properties of gradient-nanostructured 304 stainless steels. Acta Materialia, 128, 375-390 is available at https://doi.org/10.1016/j.actamat.2017.02.035. | en_US |
dc.subject | Bimodal grain size distribution | en_US |
dc.subject | Gradient-nanograined metals | en_US |
dc.subject | Gradient-nanotwinned metals | en_US |
dc.subject | Mechanical properties | en_US |
dc.subject | Micromechanical model | en_US |
dc.subject | Microstructural size | en_US |
dc.title | Microstructures-based constitutive analysis for mechanical properties of gradient-nanostructured 304 stainless steels | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 375 | en_US |
dc.identifier.epage | 390 | en_US |
dc.identifier.volume | 128 | en_US |
dc.identifier.doi | 10.1016/j.actamat.2017.02.035 | en_US |
dcterms.abstract | Austenite stainless steels with gradient nanostructure exhibit exceptional combination of high yield strength and high ductility. In order to describe their structure-property relation, a theoretical model is proposed in this work, in which the depth-dependent bimodal grain size distribution and nanotwin-nanograin composite structure are taken into account. The micromechanical model and the Voigt rule of mixture are adopted in deriving the constitutive relations. Furthermore, the evolution and influence of the nano/micro cracks/voids are considered for predicting the failure strain. The numerical results based on the theoretical model agree well with experimental results in terms of the yield strength, ductility, and the strain hardening rate, demonstrating that the proposed model can well describe the mechanical properties of gradient-nanostructured austenite stainless steels. We further study the variations of the yield strength and ductility of gradient-nanograined and gradient-nanotwinned 304 stainless steels with different distribution of grain size and twin spacing along the depth, which shows that the present model can be applied to optimize the combination of strength and ductility of the gradient-nanostructured metals by tuning depth-dependent distributions of microstructures. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Acta materialia, 15 Apr. 2017, v. 128, p. 375-390 | en_US |
dcterms.isPartOf | Acta materialia | en_US |
dcterms.issued | 2017-04-15 | - |
dc.identifier.scopus | 2-s2.0-85013759016 | - |
dc.identifier.eissn | 1873-2453 | en_US |
dc.description.validate | 202405 bcch | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0811 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Natural Science Foundation of China; National Key Basic Research Program; Ministry of Education of China; Croucher Fundation; The Hong Kong Polytechnic University | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 6725812 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Ruan_Microstructures-Based_Constitutive_Analysis.pdf | Pre-Published version | 3.22 MB | Adobe PDF | View/Open |
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