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Article: Dislocation-density kinematics: a simple evolution equation for dislocation density involving movement and tilting of dislocations
Title | Dislocation-density kinematics: a simple evolution equation for dislocation density involving movement and tilting of dislocations |
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Authors | |
Issue Date | 2017 |
Publisher | Cambridge University Press. The Journal's web site is located at https://www.cambridge.org/core/journals/mrs-communications |
Citation | MRS Communications, 2017, v. 7 n. 3, p. 583-590 How to Cite? |
Abstract | In this paper, a simple evolution equation for dislocation densities moving on a slip plane is proven. This equation gives the time evolution of dislocation density at a general field point on the slip plane, due to the approach of new dislocations and tilting of dislocations already at the field point. This equation is fully consistent with Acharya's evolution equation and Hochrainer et al.'s 'continuous dislocation dynamics' (CDD) theory. However, it is shown that the variable of dislocation curvature in CDD is unnecessary if one considers one-dimensional flux divergence along the dislocation velocity direction. |
Persistent Identifier | http://hdl.handle.net/10722/260469 |
ISSN | 2023 Impact Factor: 1.8 2023 SCImago Journal Rankings: 0.390 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ngan, AHW | - |
dc.date.accessioned | 2018-09-14T08:42:16Z | - |
dc.date.available | 2018-09-14T08:42:16Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | MRS Communications, 2017, v. 7 n. 3, p. 583-590 | - |
dc.identifier.issn | 2159-6859 | - |
dc.identifier.uri | http://hdl.handle.net/10722/260469 | - |
dc.description.abstract | In this paper, a simple evolution equation for dislocation densities moving on a slip plane is proven. This equation gives the time evolution of dislocation density at a general field point on the slip plane, due to the approach of new dislocations and tilting of dislocations already at the field point. This equation is fully consistent with Acharya's evolution equation and Hochrainer et al.'s 'continuous dislocation dynamics' (CDD) theory. However, it is shown that the variable of dislocation curvature in CDD is unnecessary if one considers one-dimensional flux divergence along the dislocation velocity direction. | - |
dc.language | eng | - |
dc.publisher | Cambridge University Press. The Journal's web site is located at https://www.cambridge.org/core/journals/mrs-communications | - |
dc.relation.ispartof | MRS Communications | - |
dc.rights | This article has been published in a revised form in MRS Communications https://doi.org/10.1557/mrc.2017.66. © Materials Research Society 2017 | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Dislocation-density kinematics: a simple evolution equation for dislocation density involving movement and tilting of dislocations | - |
dc.type | Article | - |
dc.identifier.email | Ngan, AHW: hwngan@hku.hk | - |
dc.identifier.authority | Ngan, AHW=rp00225 | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1557/mrc.2017.66 | - |
dc.identifier.scopus | eid_2-s2.0-85032568306 | - |
dc.identifier.hkuros | 289992 | - |
dc.identifier.volume | 7 | - |
dc.identifier.issue | 3 | - |
dc.identifier.spage | 583 | - |
dc.identifier.epage | 590 | - |
dc.identifier.isi | WOS:000412602400029 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 2159-6867 | - |