In-situ X-ray radiography of twinned crystal growth of primary Al13Fe4
The faceted growth of primary Al13Fe4 intermetallic compounds was studied using in-situ X-ray radiography in a solidifying Al-3Fe alloy. Microscopic twins were frequently observed in the growing intermetallics and were confirmed by post-solidification electron backscatter diffraction. A twin plane r...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
Elsevier
2020
|
| _version_ | 1797105102132084736 |
|---|---|
| author | Feng, S Cui, Y Liotti, E Lui, A Gourlay, C Grant, P |
| author_facet | Feng, S Cui, Y Liotti, E Lui, A Gourlay, C Grant, P |
| author_sort | Feng, S |
| collection | OXFORD |
| description | The faceted growth of primary Al13Fe4 intermetallic compounds was studied using in-situ X-ray radiography in a solidifying Al-3Fe alloy. Microscopic twins were frequently observed in the growing intermetallics and were confirmed by post-solidification electron backscatter diffraction. A twin plane re-entrant growth mechanism was suggested, where repeated formation of re-entrant corners facilitated crystal growth along a preferential direction, forming elongated plates. In contrast, for intermetallics where this preferential growth was constrained by surrounding crystals, formation of layered twins perpendicular to the preferential direction was promoted and led to lower aspect ratios, known to be less deleterious to tensile properties. |
| first_indexed | 2024-03-07T06:42:44Z |
| format | Journal article |
| id | oxford-uuid:f9d52722-e1de-4924-9090-08295f4683bd |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:42:44Z |
| publishDate | 2020 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:f9d52722-e1de-4924-9090-08295f4683bd2022-03-27T13:01:05ZIn-situ X-ray radiography of twinned crystal growth of primary Al13Fe4Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f9d52722-e1de-4924-9090-08295f4683bdEnglishSymplectic ElementsElsevier2020Feng, SCui, YLiotti, ELui, AGourlay, CGrant, PThe faceted growth of primary Al13Fe4 intermetallic compounds was studied using in-situ X-ray radiography in a solidifying Al-3Fe alloy. Microscopic twins were frequently observed in the growing intermetallics and were confirmed by post-solidification electron backscatter diffraction. A twin plane re-entrant growth mechanism was suggested, where repeated formation of re-entrant corners facilitated crystal growth along a preferential direction, forming elongated plates. In contrast, for intermetallics where this preferential growth was constrained by surrounding crystals, formation of layered twins perpendicular to the preferential direction was promoted and led to lower aspect ratios, known to be less deleterious to tensile properties. |
| spellingShingle | Feng, S Cui, Y Liotti, E Lui, A Gourlay, C Grant, P In-situ X-ray radiography of twinned crystal growth of primary Al13Fe4 |
| title | In-situ X-ray radiography of twinned crystal growth of primary Al13Fe4 |
| title_full | In-situ X-ray radiography of twinned crystal growth of primary Al13Fe4 |
| title_fullStr | In-situ X-ray radiography of twinned crystal growth of primary Al13Fe4 |
| title_full_unstemmed | In-situ X-ray radiography of twinned crystal growth of primary Al13Fe4 |
| title_short | In-situ X-ray radiography of twinned crystal growth of primary Al13Fe4 |
| title_sort | in situ x ray radiography of twinned crystal growth of primary al13fe4 |
| work_keys_str_mv | AT fengs insituxrayradiographyoftwinnedcrystalgrowthofprimaryal13fe4 AT cuiy insituxrayradiographyoftwinnedcrystalgrowthofprimaryal13fe4 AT liottie insituxrayradiographyoftwinnedcrystalgrowthofprimaryal13fe4 AT luia insituxrayradiographyoftwinnedcrystalgrowthofprimaryal13fe4 AT gourlayc insituxrayradiographyoftwinnedcrystalgrowthofprimaryal13fe4 AT grantp insituxrayradiographyoftwinnedcrystalgrowthofprimaryal13fe4 |