Using a Combined FE-CA Approach to Investigate Abnormally Large Grains Formed by the Limited Recrystallization Mechanism in a Powder Metallurgy Nickel-Based Superalloy
Powder nickel-based superalloy is the key material for hot-end components such as turbine disks and gas engine disks in aeroengines, and its microstructure uniformity has an important influence on the disks’ service performance. However, thermomechanical treatments make it easy to produce abnormally...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/15/1/91 |
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| author | Yanhui Yang Boyan Zhang Xiuquan Chen Xiaoxuan Wang Yankai Feng Lidong Su Zhengfei Liang Yifan Liu |
| author_facet | Yanhui Yang Boyan Zhang Xiuquan Chen Xiaoxuan Wang Yankai Feng Lidong Su Zhengfei Liang Yifan Liu |
| author_sort | Yanhui Yang |
| collection | DOAJ |
| description | Powder nickel-based superalloy is the key material for hot-end components such as turbine disks and gas engine disks in aeroengines, and its microstructure uniformity has an important influence on the disks’ service performance. However, thermomechanical treatments make it easy to produce abnormally large grains (ALGs) in powder superalloy disks. In order to investigate the relationship between the hot deformation conditions and ALGs of powder superalloys, isothermal compression experiments under various deformation conditions were carried out and a FE-CA method was constructed to investigate the ALGs formed by the limited recrystallization mechanism. The results indicate a close relationship between the ALGs formed after the supersolvus treatment of this alloy and the equivalent stress after thermal deformation, and the local dissolution of the γ′ phase in supersolvus heat treatment does not produce ALGs. |
| format | Article |
| id | doaj-art-502b9448cc41435e84d40c4ed98bf618 |
| institution | Kabale University |
| issn | 2073-4352 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj-art-502b9448cc41435e84d40c4ed98bf6182025-01-24T13:28:16ZengMDPI AGCrystals2073-43522025-01-011519110.3390/cryst15010091Using a Combined FE-CA Approach to Investigate Abnormally Large Grains Formed by the Limited Recrystallization Mechanism in a Powder Metallurgy Nickel-Based SuperalloyYanhui Yang0Boyan Zhang1Xiuquan Chen2Xiaoxuan Wang3Yankai Feng4Lidong Su5Zhengfei Liang6Yifan Liu7School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, ChinaShanghai Kingfa Technology Development Company Ltd., Shanghai 201713, ChinaXi’an Aerospace Power Machinery Company Ltd., Xi’an 710038, ChinaSchool of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, ChinaPowder nickel-based superalloy is the key material for hot-end components such as turbine disks and gas engine disks in aeroengines, and its microstructure uniformity has an important influence on the disks’ service performance. However, thermomechanical treatments make it easy to produce abnormally large grains (ALGs) in powder superalloy disks. In order to investigate the relationship between the hot deformation conditions and ALGs of powder superalloys, isothermal compression experiments under various deformation conditions were carried out and a FE-CA method was constructed to investigate the ALGs formed by the limited recrystallization mechanism. The results indicate a close relationship between the ALGs formed after the supersolvus treatment of this alloy and the equivalent stress after thermal deformation, and the local dissolution of the γ′ phase in supersolvus heat treatment does not produce ALGs.https://www.mdpi.com/2073-4352/15/1/91powder metallurgy nickel-based superalloyabnormally large grainscellular automatahot deformation |
| spellingShingle | Yanhui Yang Boyan Zhang Xiuquan Chen Xiaoxuan Wang Yankai Feng Lidong Su Zhengfei Liang Yifan Liu Using a Combined FE-CA Approach to Investigate Abnormally Large Grains Formed by the Limited Recrystallization Mechanism in a Powder Metallurgy Nickel-Based Superalloy Crystals powder metallurgy nickel-based superalloy abnormally large grains cellular automata hot deformation |
| title | Using a Combined FE-CA Approach to Investigate Abnormally Large Grains Formed by the Limited Recrystallization Mechanism in a Powder Metallurgy Nickel-Based Superalloy |
| title_full | Using a Combined FE-CA Approach to Investigate Abnormally Large Grains Formed by the Limited Recrystallization Mechanism in a Powder Metallurgy Nickel-Based Superalloy |
| title_fullStr | Using a Combined FE-CA Approach to Investigate Abnormally Large Grains Formed by the Limited Recrystallization Mechanism in a Powder Metallurgy Nickel-Based Superalloy |
| title_full_unstemmed | Using a Combined FE-CA Approach to Investigate Abnormally Large Grains Formed by the Limited Recrystallization Mechanism in a Powder Metallurgy Nickel-Based Superalloy |
| title_short | Using a Combined FE-CA Approach to Investigate Abnormally Large Grains Formed by the Limited Recrystallization Mechanism in a Powder Metallurgy Nickel-Based Superalloy |
| title_sort | using a combined fe ca approach to investigate abnormally large grains formed by the limited recrystallization mechanism in a powder metallurgy nickel based superalloy |
| topic | powder metallurgy nickel-based superalloy abnormally large grains cellular automata hot deformation |
| url | https://www.mdpi.com/2073-4352/15/1/91 |
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