The effects of initial microstructure on the creep property of a 4th generation single crystal superalloy at mediate temperature and high stress
The creep properties at 800 °C and 735 MPa were examined in Ni-based single crystal superalloys (SCs) with different microstructure characteristics to systematically investigate the effects of initial microstructure on the creep property at mediate temperature and high stress. The creep life decreas...
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| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425001255 |
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| author | Huanchang Duan Yuan Cheng Xinbao Zhao Lijie Qiao Wanshun Xia Quanzhao Yue Jiachen Xu Yuefeng Gu Ze Zhang |
| author_facet | Huanchang Duan Yuan Cheng Xinbao Zhao Lijie Qiao Wanshun Xia Quanzhao Yue Jiachen Xu Yuefeng Gu Ze Zhang |
| author_sort | Huanchang Duan |
| collection | DOAJ |
| description | The creep properties at 800 °C and 735 MPa were examined in Ni-based single crystal superalloys (SCs) with different microstructure characteristics to systematically investigate the effects of initial microstructure on the creep property at mediate temperature and high stress. The creep life decreased monotonically with the increasing primary aging temperature, which increased both the γ channel width and size of γ′ phase. The creep resistance was mainly determined by the γ channel width and stacking fault energy in γ′ phase. Narrow γ channels and low stacking fault energy in γ′ phase enhanced the creep resistance. Additionally, the fine γ′ particles embedded within the γ channel when aging at higher temperatures could not improve the creep performance significantly. The results provided a reference for the design of heat treatment procedure. |
| format | Article |
| id | doaj-art-145a14b9499e4c11a8eba686aa56e198 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-145a14b9499e4c11a8eba686aa56e1982025-01-22T05:42:37ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013513911399The effects of initial microstructure on the creep property of a 4th generation single crystal superalloy at mediate temperature and high stressHuanchang Duan0Yuan Cheng1Xinbao Zhao2Lijie Qiao3Wanshun Xia4Quanzhao Yue5Jiachen Xu6Yuefeng Gu7Ze Zhang8Institute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, ChinaInstitute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, ChinaInstitute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China; State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China; Corresponding author. Institute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China.Institute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China; Huadian Electric Power Research Institute Co., Ltd, Hangzhou, 310030, Zhejiang, ChinaInstitute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, ChinaInstitute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, ChinaInstitute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, ChinaInstitute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China; State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China; Corresponding author. Institute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China.Institute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China; State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, ChinaThe creep properties at 800 °C and 735 MPa were examined in Ni-based single crystal superalloys (SCs) with different microstructure characteristics to systematically investigate the effects of initial microstructure on the creep property at mediate temperature and high stress. The creep life decreased monotonically with the increasing primary aging temperature, which increased both the γ channel width and size of γ′ phase. The creep resistance was mainly determined by the γ channel width and stacking fault energy in γ′ phase. Narrow γ channels and low stacking fault energy in γ′ phase enhanced the creep resistance. Additionally, the fine γ′ particles embedded within the γ channel when aging at higher temperatures could not improve the creep performance significantly. The results provided a reference for the design of heat treatment procedure.http://www.sciencedirect.com/science/article/pii/S2238785425001255Primary aging temperatureCreep propertyγ′/γ microstructureDeformation mechanism |
| spellingShingle | Huanchang Duan Yuan Cheng Xinbao Zhao Lijie Qiao Wanshun Xia Quanzhao Yue Jiachen Xu Yuefeng Gu Ze Zhang The effects of initial microstructure on the creep property of a 4th generation single crystal superalloy at mediate temperature and high stress Journal of Materials Research and Technology Primary aging temperature Creep property γ′/γ microstructure Deformation mechanism |
| title | The effects of initial microstructure on the creep property of a 4th generation single crystal superalloy at mediate temperature and high stress |
| title_full | The effects of initial microstructure on the creep property of a 4th generation single crystal superalloy at mediate temperature and high stress |
| title_fullStr | The effects of initial microstructure on the creep property of a 4th generation single crystal superalloy at mediate temperature and high stress |
| title_full_unstemmed | The effects of initial microstructure on the creep property of a 4th generation single crystal superalloy at mediate temperature and high stress |
| title_short | The effects of initial microstructure on the creep property of a 4th generation single crystal superalloy at mediate temperature and high stress |
| title_sort | effects of initial microstructure on the creep property of a 4th generation single crystal superalloy at mediate temperature and high stress |
| topic | Primary aging temperature Creep property γ′/γ microstructure Deformation mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425001255 |
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