Texture evolution and anisotropy of TA18 titanium alloy strip under rolling and heat treatment conditions
Texture and anisotropy control of rolled strip have always been a technical problem in titanium alloy industry, especially for near-alpha titanium alloys. In order to solve the above problems, we innovatively propose a process method for efficiently preparing weakly anisotropic alloy strips. In this...
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424029454 |
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| author | Bobo Li Jiangkun Fan Wenyuan Zhang Jiaxing Zhao Ding Zhao Huifa Tao Xiaobo Hao Fei Wang Peng Jiang Hongchao Kou Jinshan Li |
| author_facet | Bobo Li Jiangkun Fan Wenyuan Zhang Jiaxing Zhao Ding Zhao Huifa Tao Xiaobo Hao Fei Wang Peng Jiang Hongchao Kou Jinshan Li |
| author_sort | Bobo Li |
| collection | DOAJ |
| description | Texture and anisotropy control of rolled strip have always been a technical problem in titanium alloy industry, especially for near-alpha titanium alloys. In order to solve the above problems, we innovatively propose a process method for efficiently preparing weakly anisotropic alloy strips. In this paper, the texture evolution and anisotropy of TA18 titanium alloy strip under various rolling and heat treatment conditions were systematically studied by EBSD and other technical means. The results have showed that the hot-rolled TA18 titanium alloy has a distinct band microstructure along the RD. The obvious tensile properties anisotropy of hot-rolled TA18 titanium alloy is mainly due to the non-uniform microstructure formed and strong T-type micro-texture. The hot-rolled TA18 titanium alloy after 700 °C/3h heat treatment occurred complete recrystallization process, which formed the fine and uniform equiaxed grains. Texture components distribution of the titanium alloy changed from typical bimodal texture to the tendency of <0001>//normal direction (ND) base plane texture. The hot-rolled TA18 titanium alloy after heat treatment at 700 °C/3h, followed by rolling to 4.8 mm at room temperature and annealing at 730 °C/1h, could effectively reduce the anisotropy of titanium alloys. Finally, the formation of anisotropy of yield strength was considered as the different slip activation behaviors due to the influence of micro-texture orientation. This study innovatively proposes an efficient method for fabricating alloy strips with reduced anisotropy forTA18 titanium alloy strips. |
| format | Article |
| id | doaj-art-e56eb47c49ab41b1bf905e8c8fb195e4 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-e56eb47c49ab41b1bf905e8c8fb195e42025-01-19T06:25:36ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013415821590Texture evolution and anisotropy of TA18 titanium alloy strip under rolling and heat treatment conditionsBobo Li0Jiangkun Fan1Wenyuan Zhang2Jiaxing Zhao3Ding Zhao4Huifa Tao5Xiaobo Hao6Fei Wang7Peng Jiang8Hongchao Kou9Jinshan Li10State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China; Luoyang Shuangrui Precision Casting Titanium Industry Co., Ltd., Luoyang, Henan, 471000, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China; National & Local Joint Engineering Research Center for Precision Thermoforming Technology of Advanced Metal Materials, Xi'an, 710072, China; Chongqing Innovation Center, Northwestern Polytechnical University, Chongqing, 401135, China; Corresponding author. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaLuoyang Shuangrui Precision Casting Titanium Industry Co., Ltd., Luoyang, Henan, 471000, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China; Luoyang Shuangrui Precision Casting Titanium Industry Co., Ltd., Luoyang, Henan, 471000, ChinaLuoyang Shuangrui Precision Casting Titanium Industry Co., Ltd., Luoyang, Henan, 471000, ChinaLuoyang Ship Material Research Institute, Luoyang, 471000, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China; National & Local Joint Engineering Research Center for Precision Thermoforming Technology of Advanced Metal Materials, Xi'an, 710072, China; Chongqing Innovation Center, Northwestern Polytechnical University, Chongqing, 401135, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China; National & Local Joint Engineering Research Center for Precision Thermoforming Technology of Advanced Metal Materials, Xi'an, 710072, China; Chongqing Innovation Center, Northwestern Polytechnical University, Chongqing, 401135, ChinaTexture and anisotropy control of rolled strip have always been a technical problem in titanium alloy industry, especially for near-alpha titanium alloys. In order to solve the above problems, we innovatively propose a process method for efficiently preparing weakly anisotropic alloy strips. In this paper, the texture evolution and anisotropy of TA18 titanium alloy strip under various rolling and heat treatment conditions were systematically studied by EBSD and other technical means. The results have showed that the hot-rolled TA18 titanium alloy has a distinct band microstructure along the RD. The obvious tensile properties anisotropy of hot-rolled TA18 titanium alloy is mainly due to the non-uniform microstructure formed and strong T-type micro-texture. The hot-rolled TA18 titanium alloy after 700 °C/3h heat treatment occurred complete recrystallization process, which formed the fine and uniform equiaxed grains. Texture components distribution of the titanium alloy changed from typical bimodal texture to the tendency of <0001>//normal direction (ND) base plane texture. The hot-rolled TA18 titanium alloy after heat treatment at 700 °C/3h, followed by rolling to 4.8 mm at room temperature and annealing at 730 °C/1h, could effectively reduce the anisotropy of titanium alloys. Finally, the formation of anisotropy of yield strength was considered as the different slip activation behaviors due to the influence of micro-texture orientation. This study innovatively proposes an efficient method for fabricating alloy strips with reduced anisotropy forTA18 titanium alloy strips.http://www.sciencedirect.com/science/article/pii/S2238785424029454TA18 titanium alloyRolling processingHeat treatmentAnisotropy |
| spellingShingle | Bobo Li Jiangkun Fan Wenyuan Zhang Jiaxing Zhao Ding Zhao Huifa Tao Xiaobo Hao Fei Wang Peng Jiang Hongchao Kou Jinshan Li Texture evolution and anisotropy of TA18 titanium alloy strip under rolling and heat treatment conditions Journal of Materials Research and Technology TA18 titanium alloy Rolling processing Heat treatment Anisotropy |
| title | Texture evolution and anisotropy of TA18 titanium alloy strip under rolling and heat treatment conditions |
| title_full | Texture evolution and anisotropy of TA18 titanium alloy strip under rolling and heat treatment conditions |
| title_fullStr | Texture evolution and anisotropy of TA18 titanium alloy strip under rolling and heat treatment conditions |
| title_full_unstemmed | Texture evolution and anisotropy of TA18 titanium alloy strip under rolling and heat treatment conditions |
| title_short | Texture evolution and anisotropy of TA18 titanium alloy strip under rolling and heat treatment conditions |
| title_sort | texture evolution and anisotropy of ta18 titanium alloy strip under rolling and heat treatment conditions |
| topic | TA18 titanium alloy Rolling processing Heat treatment Anisotropy |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424029454 |
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