Effect of heat treatments on the microstructure and mechanical properties of a Ti–5Al–5Mo–5V–1Fe–1Cr alloy
In this work, a duplex-step rolling deformation, comprising single phase region rolling and dual phase region rolling, and three kinds of heat treatments were applied on an as-cast Ti-55511 alloy to enhance the mechanical properties. Tensile testing results show that a high tensile strength (∼1367 M...
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| Format: | Article |
| Language: | English |
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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/S2238785424029697 |
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| author | Changchang Liu Yanghuanzi Li Ji Gu Xiaotao Liu Hao Zhang Hongge Yan Min Song |
| author_facet | Changchang Liu Yanghuanzi Li Ji Gu Xiaotao Liu Hao Zhang Hongge Yan Min Song |
| author_sort | Changchang Liu |
| collection | DOAJ |
| description | In this work, a duplex-step rolling deformation, comprising single phase region rolling and dual phase region rolling, and three kinds of heat treatments were applied on an as-cast Ti-55511 alloy to enhance the mechanical properties. Tensile testing results show that a high tensile strength (∼1367 MPa) coupled with a decent ductility to failure (∼6.5%) can be obtained by the duplex-step heat treatment, including a high temperature heat treatment (930 °C) for a short time (3 min) followed by aging at a lower temperature (600 °C) for 120 min. Microstructure characterizations indicate that the high strength of the alloy can be attributed to the distribution of multi-scale α phase, and the good ductility of the alloy may stem from the existence of the Widmanstätten structure near the grain boundaries, which alleviates the strain localization between the grain boundary and the grain interior. |
| format | Article |
| id | doaj-art-43b275626a3d44a782187ffb71b9b9a9 |
| 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-43b275626a3d44a782187ffb71b9b9a92025-01-19T06:25:41ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013414601467Effect of heat treatments on the microstructure and mechanical properties of a Ti–5Al–5Mo–5V–1Fe–1Cr alloyChangchang Liu0Yanghuanzi Li1Ji Gu2Xiaotao Liu3Hao Zhang4Hongge Yan5Min Song6State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China; Corresponding author.State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, ChinaSchool of Materials Science and Engineering, Ocean University of China, Qingdao, 266100, ChinaSchool of Materials Science and Engineering, Hunan University, Changsha, 410082, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, ChinaIn this work, a duplex-step rolling deformation, comprising single phase region rolling and dual phase region rolling, and three kinds of heat treatments were applied on an as-cast Ti-55511 alloy to enhance the mechanical properties. Tensile testing results show that a high tensile strength (∼1367 MPa) coupled with a decent ductility to failure (∼6.5%) can be obtained by the duplex-step heat treatment, including a high temperature heat treatment (930 °C) for a short time (3 min) followed by aging at a lower temperature (600 °C) for 120 min. Microstructure characterizations indicate that the high strength of the alloy can be attributed to the distribution of multi-scale α phase, and the good ductility of the alloy may stem from the existence of the Widmanstätten structure near the grain boundaries, which alleviates the strain localization between the grain boundary and the grain interior.http://www.sciencedirect.com/science/article/pii/S2238785424029697Ti-55511 alloyMechanical propertiesHeat treatmentMicrostructureRolling |
| spellingShingle | Changchang Liu Yanghuanzi Li Ji Gu Xiaotao Liu Hao Zhang Hongge Yan Min Song Effect of heat treatments on the microstructure and mechanical properties of a Ti–5Al–5Mo–5V–1Fe–1Cr alloy Journal of Materials Research and Technology Ti-55511 alloy Mechanical properties Heat treatment Microstructure Rolling |
| title | Effect of heat treatments on the microstructure and mechanical properties of a Ti–5Al–5Mo–5V–1Fe–1Cr alloy |
| title_full | Effect of heat treatments on the microstructure and mechanical properties of a Ti–5Al–5Mo–5V–1Fe–1Cr alloy |
| title_fullStr | Effect of heat treatments on the microstructure and mechanical properties of a Ti–5Al–5Mo–5V–1Fe–1Cr alloy |
| title_full_unstemmed | Effect of heat treatments on the microstructure and mechanical properties of a Ti–5Al–5Mo–5V–1Fe–1Cr alloy |
| title_short | Effect of heat treatments on the microstructure and mechanical properties of a Ti–5Al–5Mo–5V–1Fe–1Cr alloy |
| title_sort | effect of heat treatments on the microstructure and mechanical properties of a ti 5al 5mo 5v 1fe 1cr alloy |
| topic | Ti-55511 alloy Mechanical properties Heat treatment Microstructure Rolling |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424029697 |
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