Dynamic recrystallization behavior and transformation mechanism in β-phase region of TB17 titanium alloy
The thermal compression experiment of TB17 titanium alloy in the β phase region was carried out by Gleeble-3800 hot compression simulator. The dynamic recrystallization behavior and transformation mechanism in the β phase region of the TB17 titanium alloy were studied. The results show that the dyna...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2019-02-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://html.rhhz.net/CHXB/html/2020-2-108.htm |
| _version_ | 1797966966668918784 |
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| author | ZHU Hong-chang LUO Jun-ming ZHU Zhi-shou |
| author_facet | ZHU Hong-chang LUO Jun-ming ZHU Zhi-shou |
| author_sort | ZHU Hong-chang |
| collection | DOAJ |
| description | The thermal compression experiment of TB17 titanium alloy in the β phase region was carried out by Gleeble-3800 hot compression simulator. The dynamic recrystallization behavior and transformation mechanism in the β phase region of the TB17 titanium alloy were studied. The results show that the dynamic recovery (DRV) and dynamic recrystallization (DRX) occur in the β-phase region during deformation process of the TB17 titanium alloy. There are two dynamic recrystallization nucleation sites at different strain rates. At low strain rate, it mainly nucleates inside the grains, and at high strain rate, it is near the grain boundary. According to EBSD and TEM analyses, the main mechanism happened at low strain rate is continuous dynamic recrystallization (CDRX) which mainly is controlled by sub-grain rotation. Discontinuous dynamic recrystallization (DDRX) occurs at high strain rates, the main form of deformation is grain boundary shear accompanied by sub-grain rotation. Although the two dynamic recrystallizations are transformed in different ways, the essence is to form new dynamic recrystallized grains through the propagation, slip and cell structure evolution of dislocations. |
| first_indexed | 2024-04-11T02:23:42Z |
| format | Article |
| id | doaj.art-6416d49d4fe941d39856daee99d57dc6 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:23:42Z |
| publishDate | 2019-02-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-6416d49d4fe941d39856daee99d57dc62023-01-02T23:08:42ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812019-02-0148210811320200215Dynamic recrystallization behavior and transformation mechanism in β-phase region of TB17 titanium alloyZHU Hong-chang0LUO Jun-ming1ZHU Zhi-shou2School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China;School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China;Aviation Key Laboratory of Science and Technology on Advanced Titanium Alloys, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaThe thermal compression experiment of TB17 titanium alloy in the β phase region was carried out by Gleeble-3800 hot compression simulator. The dynamic recrystallization behavior and transformation mechanism in the β phase region of the TB17 titanium alloy were studied. The results show that the dynamic recovery (DRV) and dynamic recrystallization (DRX) occur in the β-phase region during deformation process of the TB17 titanium alloy. There are two dynamic recrystallization nucleation sites at different strain rates. At low strain rate, it mainly nucleates inside the grains, and at high strain rate, it is near the grain boundary. According to EBSD and TEM analyses, the main mechanism happened at low strain rate is continuous dynamic recrystallization (CDRX) which mainly is controlled by sub-grain rotation. Discontinuous dynamic recrystallization (DDRX) occurs at high strain rates, the main form of deformation is grain boundary shear accompanied by sub-grain rotation. Although the two dynamic recrystallizations are transformed in different ways, the essence is to form new dynamic recrystallized grains through the propagation, slip and cell structure evolution of dislocations.http://html.rhhz.net/CHXB/html/2020-2-108.htmtb17 titanium alloyβ thermal deformationdynamic recoverycontinuous dynamic recrys-tallizationdiscontinuous dynamic recrystallization |
| spellingShingle | ZHU Hong-chang LUO Jun-ming ZHU Zhi-shou Dynamic recrystallization behavior and transformation mechanism in β-phase region of TB17 titanium alloy Cailiao gongcheng tb17 titanium alloy β thermal deformation dynamic recovery continuous dynamic recrys-tallization discontinuous dynamic recrystallization |
| title | Dynamic recrystallization behavior and transformation mechanism in β-phase region of TB17 titanium alloy |
| title_full | Dynamic recrystallization behavior and transformation mechanism in β-phase region of TB17 titanium alloy |
| title_fullStr | Dynamic recrystallization behavior and transformation mechanism in β-phase region of TB17 titanium alloy |
| title_full_unstemmed | Dynamic recrystallization behavior and transformation mechanism in β-phase region of TB17 titanium alloy |
| title_short | Dynamic recrystallization behavior and transformation mechanism in β-phase region of TB17 titanium alloy |
| title_sort | dynamic recrystallization behavior and transformation mechanism in β phase region of tb17 titanium alloy |
| topic | tb17 titanium alloy β thermal deformation dynamic recovery continuous dynamic recrys-tallization discontinuous dynamic recrystallization |
| url | http://html.rhhz.net/CHXB/html/2020-2-108.htm |
| work_keys_str_mv | AT zhuhongchang dynamicrecrystallizationbehaviorandtransformationmechanisminbphaseregionoftb17titaniumalloy AT luojunming dynamicrecrystallizationbehaviorandtransformationmechanisminbphaseregionoftb17titaniumalloy AT zhuzhishou dynamicrecrystallizationbehaviorandtransformationmechanisminbphaseregionoftb17titaniumalloy |