Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106523
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | - |
dc.creator | Wu, K | en_US |
dc.creator | Guo, X | en_US |
dc.creator | Ruan, H | en_US |
dc.creator | Zhu, L | en_US |
dc.date.accessioned | 2024-05-09T00:54:02Z | - |
dc.date.available | 2024-05-09T00:54:02Z | - |
dc.identifier.issn | 0921-5093 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/106523 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier BV | en_US |
dc.rights | © 2017 Elsevier B.V. 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 Wu, K., Guo, X., Ruan, H., & Zhu, L. (2017). Micromechanical modeling for mechanical properties of gradient-nanotwinned metals with a composite microstructure. Materials Science and Engineering: A, 703, 180-186 is available at https://doi.org/10.1016/j.msea.2017.07.012. | en_US |
dc.subject | Bimodal grain size distribution | en_US |
dc.subject | Ductility | en_US |
dc.subject | Flow stress | en_US |
dc.subject | Gradient nanostructures | en_US |
dc.subject | Micromechanical modeling | en_US |
dc.subject | Nanotwins | en_US |
dc.subject | Yield strength | en_US |
dc.title | Micromechanical modeling for mechanical properties of gradient-nanotwinned metals with a composite microstructure | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 180 | en_US |
dc.identifier.epage | 186 | en_US |
dc.identifier.volume | 703 | en_US |
dc.identifier.doi | 10.1016/j.msea.2017.07.012 | en_US |
dcterms.abstract | Nanotwinned metals with a gradient microstructure have attracted a great deal of attention due to their excellent mechanical performance of combining high strength and high ductility. In this work, a micromechanical model is developed to describe the stress-strain response of gradient-nanotwinned metals with a composite microstructure. The deformation mechanisms originated from bimodal grain size distribution in nanostructured materials and nanoscale twin lamellae in a grain are involved in derivation of flow stress. The contributions from the gradient distribution of microstructural size and the microcracks during plastic deformation are taken into account in simulating the mechanical properties such as the yield strength and ductility. Using the proposed model, we figure out the stress-strain relation of gradient nanostructured metals and analyze the quantitative relation between the mechanical properties and the geometrical/physical parameters related to the gradient-nanotwinned composite copper. Numerical results show that, the strength and ductility of the gradient-nanotwinned bimodal metals are both improved as twins spacing decreases. With the volume fraction of coarse-grained phase decreased, the strength is improved significantly accompanied by slight reduction of the ductility. In addition, the simulated results are in a good agreement with experimental results. The present work could be helpful to describe and predict the elastic-plastic deformation behavior of gradient nanostructured composite -metals. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Materials science and engineering. A, Structural materials : properties, microstructure and processing, 4 Aug. 2017, v. 703, p. 180-186 | en_US |
dcterms.isPartOf | Materials science and engineering. A, Structural materials : properties, microstructure and processing | en_US |
dcterms.issued | 2017-08-04 | - |
dc.identifier.scopus | 2-s2.0-85025641387 | - |
dc.identifier.eissn | 1873-4936 | en_US |
dc.description.validate | 202405 bcch | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0786 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Natural Science Foundation of China; Ministry of Education of China; The Hong Kong Polytechnic University | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 6764530 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Ruan_Micromechanical_Modeling_Mechanical.pdf | Pre-Published version | 1.99 MB | Adobe PDF | View/Open |
Page views
11
Citations as of Jun 30, 2024
Downloads
3
Citations as of Jun 30, 2024
SCOPUSTM
Citations
12
Citations as of Jul 4, 2024
WEB OF SCIENCETM
Citations
11
Citations as of Jul 4, 2024
![](/image/google_scholar.jpg)
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.