Discontinous and continuous dynamic recrystallization of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy during hot deformation
The hot deformation behavior and microstructure of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy were studied under conditions of 800 °C–1200 °C/0.01 s−1∼10 s−1 using a combination of hot compression experiments, EBSD and TEM characterization. The results indicate that the deformation temperature and strain...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423031150 |
| _version_ | 1797338318708408320 |
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| author | Zhe Liu Wenbo Liu Wei Luo Peinan Du Xinmin Wang Jingyuan Pei Ruiqian Zhang Huiqun Liu |
| author_facet | Zhe Liu Wenbo Liu Wei Luo Peinan Du Xinmin Wang Jingyuan Pei Ruiqian Zhang Huiqun Liu |
| author_sort | Zhe Liu |
| collection | DOAJ |
| description | The hot deformation behavior and microstructure of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy were studied under conditions of 800 °C–1200 °C/0.01 s−1∼10 s−1 using a combination of hot compression experiments, EBSD and TEM characterization. The results indicate that the deformation temperature and strain rate have a significant impact on the flow stress and microstructure of the alloy, especially the deformation temperature. The constitutive equation constructed in this paper can reflect the hot deformation process and accurately calculate flow stress value of the FeCrAl alloy in corresponding states. The FeCrAl alloy undergoes DRV and DRX during hot deformation. DDRX grains distributed along the original grain boundaries mainly formed at low deformation temperatures and high strain rates, while CDRX grains mainly formed at high deformation temperatures and low strain rates and characterized by the internal distribution of the original grains. Moreover, the orientation of DDRX grains is mostly different from that of adjacent original grains, while the orientation of CDRX grains is relatively close to that of the original grains. |
| first_indexed | 2024-03-08T09:29:18Z |
| format | Article |
| id | doaj.art-dc3b252bf01d4ad1bf73f39995001908 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-08T09:29:18Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-dc3b252bf01d4ad1bf73f399950019082024-01-31T05:43:26ZengElsevierJournal of Materials Research and Technology2238-78542024-01-0128831843Discontinous and continuous dynamic recrystallization of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy during hot deformationZhe Liu0Wenbo Liu1Wei Luo2Peinan Du3Xinmin Wang4Jingyuan Pei5Ruiqian Zhang6Huiqun Liu7School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, PR ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi, 530004, PR ChinaSchool of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, PR ChinaScience and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, Sichuan, 610213, PR ChinaScience and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, Sichuan, 610213, PR ChinaScience and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, Sichuan, 610213, PR ChinaScience and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, Sichuan, 610213, PR ChinaSchool of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, PR China; State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, 410083, PR China; Corresponding author. School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, PR China.The hot deformation behavior and microstructure of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy were studied under conditions of 800 °C–1200 °C/0.01 s−1∼10 s−1 using a combination of hot compression experiments, EBSD and TEM characterization. The results indicate that the deformation temperature and strain rate have a significant impact on the flow stress and microstructure of the alloy, especially the deformation temperature. The constitutive equation constructed in this paper can reflect the hot deformation process and accurately calculate flow stress value of the FeCrAl alloy in corresponding states. The FeCrAl alloy undergoes DRV and DRX during hot deformation. DDRX grains distributed along the original grain boundaries mainly formed at low deformation temperatures and high strain rates, while CDRX grains mainly formed at high deformation temperatures and low strain rates and characterized by the internal distribution of the original grains. Moreover, the orientation of DDRX grains is mostly different from that of adjacent original grains, while the orientation of CDRX grains is relatively close to that of the original grains.http://www.sciencedirect.com/science/article/pii/S2238785423031150FeCrAl alloyHot deformationFlow stressMicrostructureDynamic recrystallization |
| spellingShingle | Zhe Liu Wenbo Liu Wei Luo Peinan Du Xinmin Wang Jingyuan Pei Ruiqian Zhang Huiqun Liu Discontinous and continuous dynamic recrystallization of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy during hot deformation Journal of Materials Research and Technology FeCrAl alloy Hot deformation Flow stress Microstructure Dynamic recrystallization |
| title | Discontinous and continuous dynamic recrystallization of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy during hot deformation |
| title_full | Discontinous and continuous dynamic recrystallization of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy during hot deformation |
| title_fullStr | Discontinous and continuous dynamic recrystallization of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy during hot deformation |
| title_full_unstemmed | Discontinous and continuous dynamic recrystallization of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy during hot deformation |
| title_short | Discontinous and continuous dynamic recrystallization of Fe-12.5Cr–4Al–2Mo-0.03Nb-0.08Y alloy during hot deformation |
| title_sort | discontinous and continuous dynamic recrystallization of fe 12 5cr 4al 2mo 0 03nb 0 08y alloy during hot deformation |
| topic | FeCrAl alloy Hot deformation Flow stress Microstructure Dynamic recrystallization |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423031150 |
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