Deformation behavior and microstructural evolution of pure Ti produced by hot compressing
As a component layer of layered composites, pure Ti renders the advantages of high specific strength, low density, low elastic modulus, high-temperature corrosion resistance and excellent biocompatibility. Accordingly, it has broad application prospects in the field of layered composites. In order t...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422016118 |
| _version_ | 1811196755909279744 |
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| author | Tianli Zhao Bing Zhang Zhijuan Zhang Le Chen Yi Xu Jun Cai Kuaishe Wang |
| author_facet | Tianli Zhao Bing Zhang Zhijuan Zhang Le Chen Yi Xu Jun Cai Kuaishe Wang |
| author_sort | Tianli Zhao |
| collection | DOAJ |
| description | As a component layer of layered composites, pure Ti renders the advantages of high specific strength, low density, low elastic modulus, high-temperature corrosion resistance and excellent biocompatibility. Accordingly, it has broad application prospects in the field of layered composites. In order to study the hot deformation behavior and microstructural evolution of pure Ti during roll bonding processing, hot compression tests were carried out at temperatures of 550–700 °C and strain rates of 0.01–10 s−1 with a true strain of 0.91 on the Gleeble-3500 thermal simulation machine. Arrhenius constitutive model was used to predict the flow behavior of pure Ti, and the correlation coefficient between the experimental and predicted values reached 0.92313. Based on the hot processing maps, it was found that the peak efficiency of power dissipation (η) region occurs at 650–700 °C/0.01–0.02 s−1. At a strain of 0.9, the optimal processing region is found to be 650–680 °C/0.01–0.015 s−1 with the power dissipation value about 0.59–0.62. At high temperature/low strain rate (650 °C/0.01 s−1), the dynamic recrystallization (DRX) phenomenon is obvious in pure Ti. With the increase of strain rate or the decrease of temperature, the discontinuous dynamic recrystallization (DDRX) nucleates at the original grain boundary in the form of grain boundary bow out, and gradually grows by consuming the original deformed grains, forming a typical “necklace” structure. |
| first_indexed | 2024-04-12T01:04:23Z |
| format | Article |
| id | doaj.art-47622b8419ef4e4d8e581a74473d4d2f |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-12T01:04:23Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj.art-47622b8419ef4e4d8e581a74473d4d2f2022-12-22T03:54:20ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012123832399Deformation behavior and microstructural evolution of pure Ti produced by hot compressingTianli Zhao0Bing Zhang1Zhijuan Zhang2Le Chen3Yi Xu4Jun Cai5Kuaishe Wang6College of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, ChinaCollege of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; National & Local Engineering Researching Center for Functional Materials Processing, Xi'an 710055, China; Corresponding author. College of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China. Tel:13991363825.College of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, ChinaCollege of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, ChinaCollege of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, ChinaCollege of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; National & Local Engineering Researching Center for Functional Materials Processing, Xi'an 710055, ChinaCollege of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; National & Local Engineering Researching Center for Functional Materials Processing, Xi'an 710055, ChinaAs a component layer of layered composites, pure Ti renders the advantages of high specific strength, low density, low elastic modulus, high-temperature corrosion resistance and excellent biocompatibility. Accordingly, it has broad application prospects in the field of layered composites. In order to study the hot deformation behavior and microstructural evolution of pure Ti during roll bonding processing, hot compression tests were carried out at temperatures of 550–700 °C and strain rates of 0.01–10 s−1 with a true strain of 0.91 on the Gleeble-3500 thermal simulation machine. Arrhenius constitutive model was used to predict the flow behavior of pure Ti, and the correlation coefficient between the experimental and predicted values reached 0.92313. Based on the hot processing maps, it was found that the peak efficiency of power dissipation (η) region occurs at 650–700 °C/0.01–0.02 s−1. At a strain of 0.9, the optimal processing region is found to be 650–680 °C/0.01–0.015 s−1 with the power dissipation value about 0.59–0.62. At high temperature/low strain rate (650 °C/0.01 s−1), the dynamic recrystallization (DRX) phenomenon is obvious in pure Ti. With the increase of strain rate or the decrease of temperature, the discontinuous dynamic recrystallization (DDRX) nucleates at the original grain boundary in the form of grain boundary bow out, and gradually grows by consuming the original deformed grains, forming a typical “necklace” structure.http://www.sciencedirect.com/science/article/pii/S2238785422016118Deformation behaviorMicrostructural evolutionCritical strain for recrystallizationDeformation mechanism |
| spellingShingle | Tianli Zhao Bing Zhang Zhijuan Zhang Le Chen Yi Xu Jun Cai Kuaishe Wang Deformation behavior and microstructural evolution of pure Ti produced by hot compressing Journal of Materials Research and Technology Deformation behavior Microstructural evolution Critical strain for recrystallization Deformation mechanism |
| title | Deformation behavior and microstructural evolution of pure Ti produced by hot compressing |
| title_full | Deformation behavior and microstructural evolution of pure Ti produced by hot compressing |
| title_fullStr | Deformation behavior and microstructural evolution of pure Ti produced by hot compressing |
| title_full_unstemmed | Deformation behavior and microstructural evolution of pure Ti produced by hot compressing |
| title_short | Deformation behavior and microstructural evolution of pure Ti produced by hot compressing |
| title_sort | deformation behavior and microstructural evolution of pure ti produced by hot compressing |
| topic | Deformation behavior Microstructural evolution Critical strain for recrystallization Deformation mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422016118 |
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