Topologically inverse microstructure in single-crystal superalloys: microstructural stability and properties at ultrahigh temperature
Topological phase inversion, in which γ'-precipitate becomes topological matrix phase, is a typical ‘detrimental’ microstructural degradation in Ni-based single-crystal superalloys. Here, a topologically inverse structure without service-induced damages is proposed. This structure exhibits exce...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2021-12-01
|
| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21663831.2021.1982785 |
| _version_ | 1819261600707641344 |
|---|---|
| author | Yi Ru Bin Hu Wenyue Zhao Heng Zhang Yanling Pei Shusuo Li Shengkai Gong Huibin Xu |
| author_facet | Yi Ru Bin Hu Wenyue Zhao Heng Zhang Yanling Pei Shusuo Li Shengkai Gong Huibin Xu |
| author_sort | Yi Ru |
| collection | DOAJ |
| description | Topological phase inversion, in which γ'-precipitate becomes topological matrix phase, is a typical ‘detrimental’ microstructural degradation in Ni-based single-crystal superalloys. Here, a topologically inverse structure without service-induced damages is proposed. This structure exhibits excellent stress rupture properties at 1200°C and great microstructural stability, characterized by high, steady two-phase interface density. The relationship of the interface density to microscopic dislocation motion and macroscopic plastic deformation has been established, which reveals possible strengthening effect. These results will help understanding the benefit from this ‘degraded’ but quite stable microstructure and guide microstructure tuning against long-termed heat-resisted service. |
| first_indexed | 2024-12-23T19:44:23Z |
| format | Article |
| id | doaj.art-97d75ed99ec74246987cd73dc3d24090 |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-12-23T19:44:23Z |
| publishDate | 2021-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-97d75ed99ec74246987cd73dc3d240902022-12-21T17:33:35ZengTaylor & Francis GroupMaterials Research Letters2166-38312021-12-0191249750610.1080/21663831.2021.19827851982785Topologically inverse microstructure in single-crystal superalloys: microstructural stability and properties at ultrahigh temperatureYi Ru0Bin Hu1Wenyue Zhao2Heng Zhang3Yanling Pei4Shusuo Li5Shengkai Gong6Huibin Xu7Beihang UniversityBeihang UniversityBeihang UniversityBeihang UniversityBeihang UniversityBeihang UniversityBeihang UniversityBeihang UniversityTopological phase inversion, in which γ'-precipitate becomes topological matrix phase, is a typical ‘detrimental’ microstructural degradation in Ni-based single-crystal superalloys. Here, a topologically inverse structure without service-induced damages is proposed. This structure exhibits excellent stress rupture properties at 1200°C and great microstructural stability, characterized by high, steady two-phase interface density. The relationship of the interface density to microscopic dislocation motion and macroscopic plastic deformation has been established, which reveals possible strengthening effect. These results will help understanding the benefit from this ‘degraded’ but quite stable microstructure and guide microstructure tuning against long-termed heat-resisted service.http://dx.doi.org/10.1080/21663831.2021.1982785single-crystal superalloytopological phase inversionultrahigh temperature propertymicrostructural stabilitytwo-phase interface |
| spellingShingle | Yi Ru Bin Hu Wenyue Zhao Heng Zhang Yanling Pei Shusuo Li Shengkai Gong Huibin Xu Topologically inverse microstructure in single-crystal superalloys: microstructural stability and properties at ultrahigh temperature Materials Research Letters single-crystal superalloy topological phase inversion ultrahigh temperature property microstructural stability two-phase interface |
| title | Topologically inverse microstructure in single-crystal superalloys: microstructural stability and properties at ultrahigh temperature |
| title_full | Topologically inverse microstructure in single-crystal superalloys: microstructural stability and properties at ultrahigh temperature |
| title_fullStr | Topologically inverse microstructure in single-crystal superalloys: microstructural stability and properties at ultrahigh temperature |
| title_full_unstemmed | Topologically inverse microstructure in single-crystal superalloys: microstructural stability and properties at ultrahigh temperature |
| title_short | Topologically inverse microstructure in single-crystal superalloys: microstructural stability and properties at ultrahigh temperature |
| title_sort | topologically inverse microstructure in single crystal superalloys microstructural stability and properties at ultrahigh temperature |
| topic | single-crystal superalloy topological phase inversion ultrahigh temperature property microstructural stability two-phase interface |
| url | http://dx.doi.org/10.1080/21663831.2021.1982785 |
| work_keys_str_mv | AT yiru topologicallyinversemicrostructureinsinglecrystalsuperalloysmicrostructuralstabilityandpropertiesatultrahightemperature AT binhu topologicallyinversemicrostructureinsinglecrystalsuperalloysmicrostructuralstabilityandpropertiesatultrahightemperature AT wenyuezhao topologicallyinversemicrostructureinsinglecrystalsuperalloysmicrostructuralstabilityandpropertiesatultrahightemperature AT hengzhang topologicallyinversemicrostructureinsinglecrystalsuperalloysmicrostructuralstabilityandpropertiesatultrahightemperature AT yanlingpei topologicallyinversemicrostructureinsinglecrystalsuperalloysmicrostructuralstabilityandpropertiesatultrahightemperature AT shusuoli topologicallyinversemicrostructureinsinglecrystalsuperalloysmicrostructuralstabilityandpropertiesatultrahightemperature AT shengkaigong topologicallyinversemicrostructureinsinglecrystalsuperalloysmicrostructuralstabilityandpropertiesatultrahightemperature AT huibinxu topologicallyinversemicrostructureinsinglecrystalsuperalloysmicrostructuralstabilityandpropertiesatultrahightemperature |