Manufacturing of large size nickel-based single crystal turbine guide vanes by grain continuator technology
Large size nickel-based single crystal twin turbine guide vanes（TGVs）were prepared by grain continuator（GC）technology. Directional solidification was performed in a high-rate-solidification（HRS）Bridgman vacuum furnace. Then, the macro-etching test was carried out to reveal the single crystal integra...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Aeronautical Materials
2023-06-01
|
| Series: | Journal of Aeronautical Materials |
| Subjects: | |
| Online Access: | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2022.000150 |
| _version_ | 1797808095818153984 |
|---|---|
| author | XIAO Jiuhan JIANG Weiguo LI Kaiwen HAN Dongyu WANG Dong WANG Di WANG Hua CHEN Lijia LOU Langhong |
| author_facet | XIAO Jiuhan JIANG Weiguo LI Kaiwen HAN Dongyu WANG Dong WANG Di WANG Hua CHEN Lijia LOU Langhong |
| author_sort | XIAO Jiuhan |
| collection | DOAJ |
| description | Large size nickel-based single crystal twin turbine guide vanes（TGVs）were prepared by grain continuator（GC）technology. Directional solidification was performed in a high-rate-solidification（HRS）Bridgman vacuum furnace. Then, the macro-etching test was carried out to reveal the single crystal integrality of TGVs. Scanning electron microscopy（SEM）, electron backscatter diffraction（EBSD）technology, and high temperature stress rupture experiment were applied to evaluate the actual properties of TGVs. Simultaneously, the professional finite element modeling（FEM）ProCAST software was used to simulate the directional solidification process of single crystal TGVs. The experimental results show that the formation of stray grain（SG）defect can be avoided effectively, and integrity large size single crystal twin TGVs can be prepared successfully by adopting GC technology. However, the low angle grain boundaries（LABs）defects are formed inevitably, and the boundaries angle between primary crystal and GC crystal in Vane 1 are 1.5° and 2.7° respectively. Despite the mechanical performance at high temperature degrades slightly（stress rupture life loss less than 15%, and elongation loss less than 7%）, the service performance of TGVs is still satisfied perfectly. According to the solidification process results of the large size twin TGVs simulated by ProCAST software, it is found that the initial solidification path of TGVs is optimized, meanwhile, and the undercooling condition at the leading edge of TGVs is improved by adding the GC structure. In addition, the nucleation probability of SG defect is reduced significantly, and the formation of SG defects is avoided effectively. |
| first_indexed | 2024-03-13T06:32:25Z |
| format | Article |
| id | doaj.art-e29e7115cd874720bcbe0dd1b0ced366 |
| institution | Directory Open Access Journal |
| issn | 1005-5053 |
| language | zho |
| last_indexed | 2024-03-13T06:32:25Z |
| publishDate | 2023-06-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj.art-e29e7115cd874720bcbe0dd1b0ced3662023-06-09T08:41:54ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50532023-06-01433223110.11868/j.issn.1005-5053.2022.000150a2022-0150Manufacturing of large size nickel-based single crystal turbine guide vanes by grain continuator technologyXIAO Jiuhan0JIANG Weiguo1LI Kaiwen2HAN Dongyu3WANG Dong4WANG Di5WANG Hua6CHEN Lijia7LOU Langhong8State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan 114021, Liaoning, ChinaWeifang University of Science and Technology, Shouguang 262700, Shandong, ChinaSchool of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, ChinaSchool of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaShi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaShi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaState Key Laboratory of Metal Material for Marine Equipment and Application, Anshan 114021, Liaoning, ChinaSchool of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, ChinaShi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaLarge size nickel-based single crystal twin turbine guide vanes（TGVs）were prepared by grain continuator（GC）technology. Directional solidification was performed in a high-rate-solidification（HRS）Bridgman vacuum furnace. Then, the macro-etching test was carried out to reveal the single crystal integrality of TGVs. Scanning electron microscopy（SEM）, electron backscatter diffraction（EBSD）technology, and high temperature stress rupture experiment were applied to evaluate the actual properties of TGVs. Simultaneously, the professional finite element modeling（FEM）ProCAST software was used to simulate the directional solidification process of single crystal TGVs. The experimental results show that the formation of stray grain（SG）defect can be avoided effectively, and integrity large size single crystal twin TGVs can be prepared successfully by adopting GC technology. However, the low angle grain boundaries（LABs）defects are formed inevitably, and the boundaries angle between primary crystal and GC crystal in Vane 1 are 1.5° and 2.7° respectively. Despite the mechanical performance at high temperature degrades slightly（stress rupture life loss less than 15%, and elongation loss less than 7%）, the service performance of TGVs is still satisfied perfectly. According to the solidification process results of the large size twin TGVs simulated by ProCAST software, it is found that the initial solidification path of TGVs is optimized, meanwhile, and the undercooling condition at the leading edge of TGVs is improved by adding the GC structure. In addition, the nucleation probability of SG defect is reduced significantly, and the formation of SG defects is avoided effectively.http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2022.000150nickel-based superalloyturbine guide vanessingle crystal growthgrain continuator technologycrystallographic orientationstray grain defect |
| spellingShingle | XIAO Jiuhan JIANG Weiguo LI Kaiwen HAN Dongyu WANG Dong WANG Di WANG Hua CHEN Lijia LOU Langhong Manufacturing of large size nickel-based single crystal turbine guide vanes by grain continuator technology Journal of Aeronautical Materials nickel-based superalloy turbine guide vanes single crystal growth grain continuator technology crystallographic orientation stray grain defect |
| title | Manufacturing of large size nickel-based single crystal turbine guide vanes by grain continuator technology |
| title_full | Manufacturing of large size nickel-based single crystal turbine guide vanes by grain continuator technology |
| title_fullStr | Manufacturing of large size nickel-based single crystal turbine guide vanes by grain continuator technology |
| title_full_unstemmed | Manufacturing of large size nickel-based single crystal turbine guide vanes by grain continuator technology |
| title_short | Manufacturing of large size nickel-based single crystal turbine guide vanes by grain continuator technology |
| title_sort | manufacturing of large size nickel based single crystal turbine guide vanes by grain continuator technology |
| topic | nickel-based superalloy turbine guide vanes single crystal growth grain continuator technology crystallographic orientation stray grain defect |
| url | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2022.000150 |
| work_keys_str_mv | AT xiaojiuhan manufacturingoflargesizenickelbasedsinglecrystalturbineguidevanesbygraincontinuatortechnology AT jiangweiguo manufacturingoflargesizenickelbasedsinglecrystalturbineguidevanesbygraincontinuatortechnology AT likaiwen manufacturingoflargesizenickelbasedsinglecrystalturbineguidevanesbygraincontinuatortechnology AT handongyu manufacturingoflargesizenickelbasedsinglecrystalturbineguidevanesbygraincontinuatortechnology AT wangdong manufacturingoflargesizenickelbasedsinglecrystalturbineguidevanesbygraincontinuatortechnology AT wangdi manufacturingoflargesizenickelbasedsinglecrystalturbineguidevanesbygraincontinuatortechnology AT wanghua manufacturingoflargesizenickelbasedsinglecrystalturbineguidevanesbygraincontinuatortechnology AT chenlijia manufacturingoflargesizenickelbasedsinglecrystalturbineguidevanesbygraincontinuatortechnology AT loulanghong manufacturingoflargesizenickelbasedsinglecrystalturbineguidevanesbygraincontinuatortechnology |