Nano-structures at martensite macrotwin interfaces in Ni65Al35
The atomic configurations at macrotwin interfaces between microtwinned martensite plates in Ni65Al35 material are investigated using transmission electron microscopy. The observed structures are interpreted in view of possible formation mechanisms for these interfaces. A distinction is made between...
| 主要な著者: | , , |
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| フォーマット: | Journal article |
| 言語: | English |
| 出版事項: |
2003
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| _version_ | 1826286127104917504 |
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| author | Boullay, P Schryvers, D Ball, J |
| author_facet | Boullay, P Schryvers, D Ball, J |
| author_sort | Boullay, P |
| collection | OXFORD |
| description | The atomic configurations at macrotwin interfaces between microtwinned martensite plates in Ni65Al35 material are investigated using transmission electron microscopy. The observed structures are interpreted in view of possible formation mechanisms for these interfaces. A distinction is made between cases in which the microtwins, originating from mutually perpendicular {110} austenite planes, enclose a final angle larger or smaller than 90°. Two different configurations, a crossing and a step type are described. Depending on the actual case, tapering, bending and tip splitting of the smaller microtwin variants are observed. The most reproducible deformations occur in a region of approximately 5-10 nm width around the interface while a variety of structural defects are observed further away from the interface. These structures and deformations are interpreted in terms of the coalescence of two separately nucleated microtwinned martensite plates and the need to accommodate remaining stresses. © 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved. |
| first_indexed | 2024-03-07T01:39:09Z |
| format | Journal article |
| id | oxford-uuid:963d04b6-a25a-4b14-a12d-4967144fa0fa |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:39:09Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:963d04b6-a25a-4b14-a12d-4967144fa0fa2022-03-26T23:51:37ZNano-structures at martensite macrotwin interfaces in Ni65Al35Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:963d04b6-a25a-4b14-a12d-4967144fa0faEnglishSymplectic Elements at Oxford2003Boullay, PSchryvers, DBall, JThe atomic configurations at macrotwin interfaces between microtwinned martensite plates in Ni65Al35 material are investigated using transmission electron microscopy. The observed structures are interpreted in view of possible formation mechanisms for these interfaces. A distinction is made between cases in which the microtwins, originating from mutually perpendicular {110} austenite planes, enclose a final angle larger or smaller than 90°. Two different configurations, a crossing and a step type are described. Depending on the actual case, tapering, bending and tip splitting of the smaller microtwin variants are observed. The most reproducible deformations occur in a region of approximately 5-10 nm width around the interface while a variety of structural defects are observed further away from the interface. These structures and deformations are interpreted in terms of the coalescence of two separately nucleated microtwinned martensite plates and the need to accommodate remaining stresses. © 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved. |
| spellingShingle | Boullay, P Schryvers, D Ball, J Nano-structures at martensite macrotwin interfaces in Ni65Al35 |
| title | Nano-structures at martensite macrotwin interfaces in Ni65Al35 |
| title_full | Nano-structures at martensite macrotwin interfaces in Ni65Al35 |
| title_fullStr | Nano-structures at martensite macrotwin interfaces in Ni65Al35 |
| title_full_unstemmed | Nano-structures at martensite macrotwin interfaces in Ni65Al35 |
| title_short | Nano-structures at martensite macrotwin interfaces in Ni65Al35 |
| title_sort | nano structures at martensite macrotwin interfaces in ni65al35 |
| work_keys_str_mv | AT boullayp nanostructuresatmartensitemacrotwininterfacesinni65al35 AT schryversd nanostructuresatmartensitemacrotwininterfacesinni65al35 AT ballj nanostructuresatmartensitemacrotwininterfacesinni65al35 |