Effect of cold rolling deformation and heat treatment on microstructure and hardness of GH4169 alloy plate
Cold rolling and heat treatment experiments of GH4169 alloy with different deformation were carried out. Effect of different cold rolling deformation and heat treatment state on microstructure and hardness of plate was analyzed. Cold rolling experimental results show that dislocation density is incr...
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| Format: | Article |
| Language: | zho |
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Journal of Aeronautical Materials
2023-04-01
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| Series: | Journal of Aeronautical Materials |
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| Online Access: | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2022.000070 |
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| author | TIAN Wei FU Yu LIU Yanfei HE Aijie ZHONG Yan SHI Zhaoxia |
| author_facet | TIAN Wei FU Yu LIU Yanfei HE Aijie ZHONG Yan SHI Zhaoxia |
| author_sort | TIAN Wei |
| collection | DOAJ |
| description | Cold rolling and heat treatment experiments of GH4169 alloy with different deformation were carried out. Effect of different cold rolling deformation and heat treatment state on microstructure and hardness of plate was analyzed. Cold rolling experimental results show that dislocation density is increased, dislocations are cross slipped, deformation texture are enhanced, twins boundaries are decreased and hardness is improved with the increasing of deformation. Different heat treatment experimental results show that when the cold rolling deformation within 0%-20%, after 980 ℃×10 min solution treatment, the recrystallization is incepted, grains are refined, deformed grains and dislocation are remained in the plate. When the deformation within 0%-20%, deformed grains are remained and recrystallized grain size is refined with the increasing of deformation, thus the hardness of solution treated plate is increased with the increasing of deformation. The recrystallization finished and work hardening is eliminated,thus the hardness of solution treated plate decline to undeformed level and remains unchanged when the deformation larger than 25%. The γ' and γ'' phases are precipitated in the plate after aging heat treatment, and the hardness of the plate is significantly higher than that of the cold rolled and solid solution treatment states, and the hardness is basically not affected by the deformation amount of cold rolling. The threshold value of cold rolling deformation for recrystallization inception of GH4169 alloy is within 5%-10% during 980 ℃ solution treatment. And the cold rolling deformation threshold value of complete recrystallization is about 25%. According to actual production condition, the optimal cold rolling deformation is larger than 25%, and the matched solution treatment is 980 ℃×10 min. |
| first_indexed | 2024-04-09T19:50:14Z |
| format | Article |
| id | doaj.art-c697a348fdfe4eebb383fc7e0b72225d |
| institution | Directory Open Access Journal |
| issn | 1005-5053 |
| language | zho |
| last_indexed | 2024-04-09T19:50:14Z |
| publishDate | 2023-04-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj.art-c697a348fdfe4eebb383fc7e0b72225d2023-04-03T09:47:48ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50532023-04-01432334110.11868/j.issn.1005-5053.2022.0000702022-0070Effect of cold rolling deformation and heat treatment on microstructure and hardness of GH4169 alloy plateTIAN Wei0FU Yu1LIU Yanfei2HE Aijie3ZHONG Yan4SHI Zhaoxia5AECC Sichuan Gas Turbine Establishment，Chengdu 610500, ChinaAECC Sichuan Gas Turbine Establishment，Chengdu 610500, ChinaAECC Sichuan Gas Turbine Establishment，Chengdu 610500, ChinaAECC Sichuan Gas Turbine Establishment，Chengdu 610500, ChinaAECC Sichuan Gas Turbine Establishment，Chengdu 610500, ChinaCentral Iron and Steel Research Institute， Beijing 100081, ChinaCold rolling and heat treatment experiments of GH4169 alloy with different deformation were carried out. Effect of different cold rolling deformation and heat treatment state on microstructure and hardness of plate was analyzed. Cold rolling experimental results show that dislocation density is increased, dislocations are cross slipped, deformation texture are enhanced, twins boundaries are decreased and hardness is improved with the increasing of deformation. Different heat treatment experimental results show that when the cold rolling deformation within 0%-20%, after 980 ℃×10 min solution treatment, the recrystallization is incepted, grains are refined, deformed grains and dislocation are remained in the plate. When the deformation within 0%-20%, deformed grains are remained and recrystallized grain size is refined with the increasing of deformation, thus the hardness of solution treated plate is increased with the increasing of deformation. The recrystallization finished and work hardening is eliminated,thus the hardness of solution treated plate decline to undeformed level and remains unchanged when the deformation larger than 25%. The γ' and γ'' phases are precipitated in the plate after aging heat treatment, and the hardness of the plate is significantly higher than that of the cold rolled and solid solution treatment states, and the hardness is basically not affected by the deformation amount of cold rolling. The threshold value of cold rolling deformation for recrystallization inception of GH4169 alloy is within 5%-10% during 980 ℃ solution treatment. And the cold rolling deformation threshold value of complete recrystallization is about 25%. According to actual production condition, the optimal cold rolling deformation is larger than 25%, and the matched solution treatment is 980 ℃×10 min.http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2022.000070gh4169 alloycold rolled plateheat treatment conditionhardnessrecrystallizationmicrostructure |
| spellingShingle | TIAN Wei FU Yu LIU Yanfei HE Aijie ZHONG Yan SHI Zhaoxia Effect of cold rolling deformation and heat treatment on microstructure and hardness of GH4169 alloy plate Journal of Aeronautical Materials gh4169 alloy cold rolled plate heat treatment condition hardness recrystallization microstructure |
| title | Effect of cold rolling deformation and heat treatment on microstructure and hardness of GH4169 alloy plate |
| title_full | Effect of cold rolling deformation and heat treatment on microstructure and hardness of GH4169 alloy plate |
| title_fullStr | Effect of cold rolling deformation and heat treatment on microstructure and hardness of GH4169 alloy plate |
| title_full_unstemmed | Effect of cold rolling deformation and heat treatment on microstructure and hardness of GH4169 alloy plate |
| title_short | Effect of cold rolling deformation and heat treatment on microstructure and hardness of GH4169 alloy plate |
| title_sort | effect of cold rolling deformation and heat treatment on microstructure and hardness of gh4169 alloy plate |
| topic | gh4169 alloy cold rolled plate heat treatment condition hardness recrystallization microstructure |
| url | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2022.000070 |
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