Hierarchical features infused heterogeneous grain structure for extraordinary strength-ductility synergy
A synergistic balance of strength and ductility was achieved in a prototypical fcc-based Al0.3CoCrFeNi complex concentrated alloy by incorporating hierarchical microstructural features into heterogeneous grain structure. Microstructural hierarchy was composed of different morphologies and size-scale...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2018-12-01
|
| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21663831.2018.1538023 |
| _version_ | 1818565661193928704 |
|---|---|
| author | Shivakant Shukla Deep Choudhuri Tianhao Wang Kaimiao Liu Robert Wheeler Sarah Williams Bharat Gwalani Rajiv S. Mishra |
| author_facet | Shivakant Shukla Deep Choudhuri Tianhao Wang Kaimiao Liu Robert Wheeler Sarah Williams Bharat Gwalani Rajiv S. Mishra |
| author_sort | Shivakant Shukla |
| collection | DOAJ |
| description | A synergistic balance of strength and ductility was achieved in a prototypical fcc-based Al0.3CoCrFeNi complex concentrated alloy by incorporating hierarchical microstructural features into heterogeneous grain structure. Microstructural hierarchy was composed of different morphologies and size-scales of B2 precipitates and nano-twins that were incorporated in parent fcc matrix, which, additionally, was comprised of domains of fine and coarse grains. Strain partitioning between refined and coarse grains produced geometrically necessary dislocations during plastic deformation. This facilitated long-range back stresses during further deformation leading to simultaneous enhancement of strength and ductility. Furthermore, B2 precipitates complemented back stress and increased inherent matrix strength. |
| first_indexed | 2024-12-14T01:44:07Z |
| format | Article |
| id | doaj.art-afcf8ff617cf49debd922711618b44e5 |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-12-14T01:44:07Z |
| publishDate | 2018-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-afcf8ff617cf49debd922711618b44e52022-12-21T23:21:38ZengTaylor & Francis GroupMaterials Research Letters2166-38312018-12-0161267668210.1080/21663831.2018.15380231538023Hierarchical features infused heterogeneous grain structure for extraordinary strength-ductility synergyShivakant Shukla0Deep Choudhuri1Tianhao Wang2Kaimiao Liu3Robert Wheeler4Sarah Williams5Bharat Gwalani6Rajiv S. Mishra7University of North TexasUniversity of North TexasUniversity of North TexasUniversity of North TexasUniversity of North TexasUniversity of North TexasUniversity of North TexasUniversity of North TexasA synergistic balance of strength and ductility was achieved in a prototypical fcc-based Al0.3CoCrFeNi complex concentrated alloy by incorporating hierarchical microstructural features into heterogeneous grain structure. Microstructural hierarchy was composed of different morphologies and size-scales of B2 precipitates and nano-twins that were incorporated in parent fcc matrix, which, additionally, was comprised of domains of fine and coarse grains. Strain partitioning between refined and coarse grains produced geometrically necessary dislocations during plastic deformation. This facilitated long-range back stresses during further deformation leading to simultaneous enhancement of strength and ductility. Furthermore, B2 precipitates complemented back stress and increased inherent matrix strength.http://dx.doi.org/10.1080/21663831.2018.1538023Hierarchical featuresheterogeneous grain structurehigh-entropy alloycomplex concentrated alloysloading-unloading-reloading |
| spellingShingle | Shivakant Shukla Deep Choudhuri Tianhao Wang Kaimiao Liu Robert Wheeler Sarah Williams Bharat Gwalani Rajiv S. Mishra Hierarchical features infused heterogeneous grain structure for extraordinary strength-ductility synergy Materials Research Letters Hierarchical features heterogeneous grain structure high-entropy alloy complex concentrated alloys loading-unloading-reloading |
| title | Hierarchical features infused heterogeneous grain structure for extraordinary strength-ductility synergy |
| title_full | Hierarchical features infused heterogeneous grain structure for extraordinary strength-ductility synergy |
| title_fullStr | Hierarchical features infused heterogeneous grain structure for extraordinary strength-ductility synergy |
| title_full_unstemmed | Hierarchical features infused heterogeneous grain structure for extraordinary strength-ductility synergy |
| title_short | Hierarchical features infused heterogeneous grain structure for extraordinary strength-ductility synergy |
| title_sort | hierarchical features infused heterogeneous grain structure for extraordinary strength ductility synergy |
| topic | Hierarchical features heterogeneous grain structure high-entropy alloy complex concentrated alloys loading-unloading-reloading |
| url | http://dx.doi.org/10.1080/21663831.2018.1538023 |
| work_keys_str_mv | AT shivakantshukla hierarchicalfeaturesinfusedheterogeneousgrainstructureforextraordinarystrengthductilitysynergy AT deepchoudhuri hierarchicalfeaturesinfusedheterogeneousgrainstructureforextraordinarystrengthductilitysynergy AT tianhaowang hierarchicalfeaturesinfusedheterogeneousgrainstructureforextraordinarystrengthductilitysynergy AT kaimiaoliu hierarchicalfeaturesinfusedheterogeneousgrainstructureforextraordinarystrengthductilitysynergy AT robertwheeler hierarchicalfeaturesinfusedheterogeneousgrainstructureforextraordinarystrengthductilitysynergy AT sarahwilliams hierarchicalfeaturesinfusedheterogeneousgrainstructureforextraordinarystrengthductilitysynergy AT bharatgwalani hierarchicalfeaturesinfusedheterogeneousgrainstructureforextraordinarystrengthductilitysynergy AT rajivsmishra hierarchicalfeaturesinfusedheterogeneousgrainstructureforextraordinarystrengthductilitysynergy |