Simultaneously improved strength and ductility of low-cost Ti-Al-V-Fe alloy with TiB2 addition and thermomechanical processing
To obtain the low-cost titanium alloys with simultaneously improved strength and ductility by thermomechanical processing, 0.1 wt% of boron was added to the Ti-4Al-2.5V-1.5Fe alloy using titanium diboride (TiB2) as a boron source. The deformation mechanisms and microstructure evolution were systemat...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127523005361 |
| _version_ | 1797736224707837952 |
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| author | Guanghua Xu Jieyan Tao Yuqin Zhang Junsheng Wang Yehua Jiang |
| author_facet | Guanghua Xu Jieyan Tao Yuqin Zhang Junsheng Wang Yehua Jiang |
| author_sort | Guanghua Xu |
| collection | DOAJ |
| description | To obtain the low-cost titanium alloys with simultaneously improved strength and ductility by thermomechanical processing, 0.1 wt% of boron was added to the Ti-4Al-2.5V-1.5Fe alloy using titanium diboride (TiB2) as a boron source. The deformation mechanisms and microstructure evolution were systematically studied by comparative investigation of Ti-4Al-2.5V-1.5Fe alloys with and without boron. The results indicated that the addition of boride had a significant effect on the material parameters. Furthermore, TiB greatly improved the spheroidization and recrystallization of the alloy, and it can effectively limit grain growth during thermal exposure. Consequently, both high-temperature forging and further thermal deformation facilitated the generation and retention of the fine grain structure, dramatically improving the processibility of Ti alloys. For bare alloys, severe plastic deformation often leads to inhomogeneous microstructures and flow instability, which is harmful to mechanical integrity. In contrast, the addition of borides can significantly mitigate flow localization. In this study, boron-modified titanium alloys exhibited improved processibility and beneficial mechanical properties attributed to beneficial effects due to the addition of borides, which may enable new strategies for manufacturing high-strength titanium alloys in a more cost-effective way. |
| first_indexed | 2024-03-12T13:10:34Z |
| format | Article |
| id | doaj.art-b9c388c38922482daec07e25c756135d |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-03-12T13:10:34Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-b9c388c38922482daec07e25c756135d2023-08-28T04:22:22ZengElsevierMaterials & Design0264-12752023-08-01232112121Simultaneously improved strength and ductility of low-cost Ti-Al-V-Fe alloy with TiB2 addition and thermomechanical processingGuanghua Xu0Jieyan Tao1Yuqin Zhang2Junsheng Wang3Yehua Jiang4School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650031, PR China; National-local Joint Engineering Laboratory of Metal Advanced Solidification Forming and Equipment Technology, Kunming 650093, PR ChinaSchool of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650031, PR China; Engineering Technology Research Center of Titanium Products and Application of Yunnan Province, Chuxiong 651209, PR ChinaSchool of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650031, PR China; National-local Joint Engineering Laboratory of Metal Advanced Solidification Forming and Equipment Technology, Kunming 650093, PR China; Engineering Technology Research Center of Titanium Products and Application of Yunnan Province, Chuxiong 651209, PR China; Corresponding authors at: School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650031, PR China (Y. Zhang).Engineering Technology Research Center of Titanium Products and Application of Yunnan Province, Chuxiong 651209, PR China; Corresponding authors at: School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650031, PR China (Y. Zhang).School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650031, PR China; National-local Joint Engineering Laboratory of Metal Advanced Solidification Forming and Equipment Technology, Kunming 650093, PR ChinaTo obtain the low-cost titanium alloys with simultaneously improved strength and ductility by thermomechanical processing, 0.1 wt% of boron was added to the Ti-4Al-2.5V-1.5Fe alloy using titanium diboride (TiB2) as a boron source. The deformation mechanisms and microstructure evolution were systematically studied by comparative investigation of Ti-4Al-2.5V-1.5Fe alloys with and without boron. The results indicated that the addition of boride had a significant effect on the material parameters. Furthermore, TiB greatly improved the spheroidization and recrystallization of the alloy, and it can effectively limit grain growth during thermal exposure. Consequently, both high-temperature forging and further thermal deformation facilitated the generation and retention of the fine grain structure, dramatically improving the processibility of Ti alloys. For bare alloys, severe plastic deformation often leads to inhomogeneous microstructures and flow instability, which is harmful to mechanical integrity. In contrast, the addition of borides can significantly mitigate flow localization. In this study, boron-modified titanium alloys exhibited improved processibility and beneficial mechanical properties attributed to beneficial effects due to the addition of borides, which may enable new strategies for manufacturing high-strength titanium alloys in a more cost-effective way.http://www.sciencedirect.com/science/article/pii/S0264127523005361Titanium alloyBoron additionThermomechanical processingDeformation mechanismsMechanical properties |
| spellingShingle | Guanghua Xu Jieyan Tao Yuqin Zhang Junsheng Wang Yehua Jiang Simultaneously improved strength and ductility of low-cost Ti-Al-V-Fe alloy with TiB2 addition and thermomechanical processing Materials & Design Titanium alloy Boron addition Thermomechanical processing Deformation mechanisms Mechanical properties |
| title | Simultaneously improved strength and ductility of low-cost Ti-Al-V-Fe alloy with TiB2 addition and thermomechanical processing |
| title_full | Simultaneously improved strength and ductility of low-cost Ti-Al-V-Fe alloy with TiB2 addition and thermomechanical processing |
| title_fullStr | Simultaneously improved strength and ductility of low-cost Ti-Al-V-Fe alloy with TiB2 addition and thermomechanical processing |
| title_full_unstemmed | Simultaneously improved strength and ductility of low-cost Ti-Al-V-Fe alloy with TiB2 addition and thermomechanical processing |
| title_short | Simultaneously improved strength and ductility of low-cost Ti-Al-V-Fe alloy with TiB2 addition and thermomechanical processing |
| title_sort | simultaneously improved strength and ductility of low cost ti al v fe alloy with tib2 addition and thermomechanical processing |
| topic | Titanium alloy Boron addition Thermomechanical processing Deformation mechanisms Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S0264127523005361 |
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