The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientation
An interesting phenomenon is found in Nickel-based single crystal superalloy thin-wall specimens which have the same [001] primary orientation and different secondary orientation with [100], [210], and [110] at 850 °C. Generally, the testing of cylindrical samples exhibits similar creep and tensile...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424003338 |
| _version_ | 1827310753172946944 |
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| author | Haibo Wang Xuehang Li Yong Shang Shuangqi Zhang Bin Hu Yanling Pei Shusuo Li Shengkai Gong |
| author_facet | Haibo Wang Xuehang Li Yong Shang Shuangqi Zhang Bin Hu Yanling Pei Shusuo Li Shengkai Gong |
| author_sort | Haibo Wang |
| collection | DOAJ |
| description | An interesting phenomenon is found in Nickel-based single crystal superalloy thin-wall specimens which have the same [001] primary orientation and different secondary orientation with [100], [210], and [110] at 850 °C. Generally, the testing of cylindrical samples exhibits similar creep and tensile properties regardless of their vertical orientation distribution due to the circumferential symmetry of their geometric structure. However, the 850 °C experimental results of thin-wall specimens with the same [001] primary orientation show a significant difference in tensile ductility and creep life when the secondary orientation is different. The mechanism of the secondary orientation effect is completely discussed by combining experiment, digital image correlation (DIC), and finite element modelling (FEM), which result from the strengthening effect of Lomer-Cottrel dislocations and the ability to coordinate plastic deformation in tensile, the shrinkage rate of cross-section caused by the single slip system ({111} <11-2>) and deviation from [001] with a small angle in creep. |
| first_indexed | 2024-03-08T00:23:19Z |
| format | Article |
| id | doaj.art-d7339df6b1024806ad65e41904c00ab2 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-24T20:06:05Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-d7339df6b1024806ad65e41904c00ab22024-03-24T06:58:05ZengElsevierJournal of Materials Research and Technology2238-78542024-03-012932053216The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientationHaibo Wang0Xuehang Li1Yong Shang2Shuangqi Zhang3Bin Hu4Yanling Pei5Shusuo Li6Shengkai Gong7Frontier Research Institute of Innovative Science and Technology, Beihang University, Beijing, 100191, ChinaAerospace Science and Industry Defense Technology Research and Test Center, Beijing, 100854, ChinaFrontier Research Institute of Innovative Science and Technology, Beihang University, Beijing, 100191, China; Tianmushan Laboratory, Zhe Jiang, Hangzhou, 310023, China; Corresponding author. Frontier Research Institute of Innovative Science and Technology, Beihang University, Beijing, 100191, China.School of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaResearch Institute of Aero-Engine, Beihang University, Beijing, 100191, China; Corresponding author.Frontier Research Institute of Innovative Science and Technology, Beihang University, Beijing, 100191, ChinaResearch Institute of Aero-Engine, Beihang University, Beijing, 100191, ChinaFrontier Research Institute of Innovative Science and Technology, Beihang University, Beijing, 100191, ChinaAn interesting phenomenon is found in Nickel-based single crystal superalloy thin-wall specimens which have the same [001] primary orientation and different secondary orientation with [100], [210], and [110] at 850 °C. Generally, the testing of cylindrical samples exhibits similar creep and tensile properties regardless of their vertical orientation distribution due to the circumferential symmetry of their geometric structure. However, the 850 °C experimental results of thin-wall specimens with the same [001] primary orientation show a significant difference in tensile ductility and creep life when the secondary orientation is different. The mechanism of the secondary orientation effect is completely discussed by combining experiment, digital image correlation (DIC), and finite element modelling (FEM), which result from the strengthening effect of Lomer-Cottrel dislocations and the ability to coordinate plastic deformation in tensile, the shrinkage rate of cross-section caused by the single slip system ({111} <11-2>) and deviation from [001] with a small angle in creep.http://www.sciencedirect.com/science/article/pii/S2238785424003338Ni-based single crystal superalloySecondary orientationCreep lifeTensile ductilityPlastic deformation |
| spellingShingle | Haibo Wang Xuehang Li Yong Shang Shuangqi Zhang Bin Hu Yanling Pei Shusuo Li Shengkai Gong The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientation Journal of Materials Research and Technology Ni-based single crystal superalloy Secondary orientation Creep life Tensile ductility Plastic deformation |
| title | The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientation |
| title_full | The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientation |
| title_fullStr | The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientation |
| title_full_unstemmed | The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientation |
| title_short | The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientation |
| title_sort | secondary orientation effect of single crystal superalloy thin wall specimens at 850 °c with 001 primary orientation |
| topic | Ni-based single crystal superalloy Secondary orientation Creep life Tensile ductility Plastic deformation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424003338 |
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