Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation
Comparison on the kinetics of two different phase transformations, including phase transformation after deformation and phase transformation during deformation (i.e. dynamic transformation, DT), reveals a new discovery that the transformation kinetics can be significantly enhanced in DT even under l...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2018-11-01
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| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21663831.2018.1527787 |
| _version_ | 1818042655990349824 |
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| author | Lijia Zhao Nokeun Park Yanzhong Tian Akinobu Shibata Nobuhiro Tsuji |
| author_facet | Lijia Zhao Nokeun Park Yanzhong Tian Akinobu Shibata Nobuhiro Tsuji |
| author_sort | Lijia Zhao |
| collection | DOAJ |
| description | Comparison on the kinetics of two different phase transformations, including phase transformation after deformation and phase transformation during deformation (i.e. dynamic transformation, DT), reveals a new discovery that the transformation kinetics can be significantly enhanced in DT even under low driving forces. DT enables continuous generation of defects (e.g. dislocations) near the phase boundary, which can act as short-circuiting diffusion paths for atoms. The diffusivity of atoms is enhanced and the activation energy for the atom jump across the phase boundary is lowered under stress during DT, resulting in more pronounced grain growth as well as accelerated transformation kinetics. |
| first_indexed | 2024-12-10T08:49:47Z |
| format | Article |
| id | doaj.art-a9f9ef85ff9341bf9563237287da0556 |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-12-10T08:49:47Z |
| publishDate | 2018-11-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-a9f9ef85ff9341bf9563237287da05562022-12-22T01:55:38ZengTaylor & Francis GroupMaterials Research Letters2166-38312018-11-0161164164710.1080/21663831.2018.15277871527787Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformationLijia Zhao0Nokeun Park1Yanzhong Tian2Akinobu Shibata3Nobuhiro Tsuji4Kyoto UniversityKyoto UniversityKyoto UniversityKyoto UniversityKyoto UniversityComparison on the kinetics of two different phase transformations, including phase transformation after deformation and phase transformation during deformation (i.e. dynamic transformation, DT), reveals a new discovery that the transformation kinetics can be significantly enhanced in DT even under low driving forces. DT enables continuous generation of defects (e.g. dislocations) near the phase boundary, which can act as short-circuiting diffusion paths for atoms. The diffusivity of atoms is enhanced and the activation energy for the atom jump across the phase boundary is lowered under stress during DT, resulting in more pronounced grain growth as well as accelerated transformation kinetics.http://dx.doi.org/10.1080/21663831.2018.1527787Dynamic phase transformationdeformationdiffusionkineticsgrain growth |
| spellingShingle | Lijia Zhao Nokeun Park Yanzhong Tian Akinobu Shibata Nobuhiro Tsuji Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation Materials Research Letters Dynamic phase transformation deformation diffusion kinetics grain growth |
| title | Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation |
| title_full | Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation |
| title_fullStr | Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation |
| title_full_unstemmed | Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation |
| title_short | Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation |
| title_sort | deformation assisted diffusion for the enhanced kinetics of dynamic phase transformation |
| topic | Dynamic phase transformation deformation diffusion kinetics grain growth |
| url | http://dx.doi.org/10.1080/21663831.2018.1527787 |
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