Evolution mechanism of microstructure and microhardness of Ti–6Al–4V alloy during ultrasonic elliptical vibration assisted ultra-precise cutting
The ultra-precision Ti–6Al–4V alloy parts are growing used in medical and aerospace industries, and which always work in the extreme working conditions such as high temperature, high pressure, and variable load. Thus, the requirements for machining accuracy and surface quality of parts are getting h...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424007439 |
| _version_ | 1827216670720000000 |
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| author | Rongkai Tan Shijing Jin Shuangquan Wei Jiacheng Wang Xuesen Zhao Zhanfeng Wang Qi Liu Tao Sun |
| author_facet | Rongkai Tan Shijing Jin Shuangquan Wei Jiacheng Wang Xuesen Zhao Zhanfeng Wang Qi Liu Tao Sun |
| author_sort | Rongkai Tan |
| collection | DOAJ |
| description | The ultra-precision Ti–6Al–4V alloy parts are growing used in medical and aerospace industries, and which always work in the extreme working conditions such as high temperature, high pressure, and variable load. Thus, the requirements for machining accuracy and surface quality of parts are getting higher and higher. The ultrasonic elliptical vibration assisted cutting (UEVC) technology has been proved to be an effective method for the ultra-precision machining of Ti–6Al–4V alloy. However, in the UEVC process, the evolution mechanism of microstructure and microhardness, which directly affect the service performance and life, is unrevealed. In this paper, the comprehensive investigations of microstructural plastic deformation, grain refinement, phase transformation and microhardness of machined surface layer under conventional cutting (CC) and UEVC processes are carried out. The experimental results indicated that, due to the effects of UEVC technology, the plastic deformation area show obvious compression deformation, the depth of plastic deformation is less than 10 μm, there is no obvious phase transformation on the machined surface layer material, and the hardening rate of machined surface is more than 20%. These findings show the UEVC technology has a unique influence on the microstructure and microhardness of Ti–6Al–4V alloy, which have important implications for the cutting parameter design of ultra-precision Ti–6Al–4V alloy parts. |
| first_indexed | 2024-04-24T16:25:44Z |
| format | Article |
| id | doaj.art-5cb8056c094549b9af3cb6d01850a30e |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2025-03-21T15:06:49Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-5cb8056c094549b9af3cb6d01850a30e2024-06-20T06:53:06ZengElsevierJournal of Materials Research and Technology2238-78542024-05-013016411649Evolution mechanism of microstructure and microhardness of Ti–6Al–4V alloy during ultrasonic elliptical vibration assisted ultra-precise cuttingRongkai Tan0Shijing Jin1Shuangquan Wei2Jiacheng Wang3Xuesen Zhao4Zhanfeng Wang5Qi Liu6Tao Sun7Key Laboratory of Conveyance and Equipment of Ministry of Education, East China Jiaotong University, Nanchang, 330013, PR China; Jiangxi Province Engineering Research Center of Drug and Medical Device Qualit, NMPA Key Laboratory of Quality Evaluation of Traditional Chinese Patent Medicine, Jiangxi Institute for Drug Control, Nanchang, 330029, PR China; Corresponding author. Key Laboratory of Conveyance and Equipment of Ministry of Education, East China Jiaotong University, Nanchang, 330013, PR China.Key Laboratory of Conveyance and Equipment of Ministry of Education, East China Jiaotong University, Nanchang, 330013, PR ChinaKey Laboratory of Conveyance and Equipment of Ministry of Education, East China Jiaotong University, Nanchang, 330013, PR ChinaKey Laboratory of Conveyance and Equipment of Ministry of Education, East China Jiaotong University, Nanchang, 330013, PR ChinaCenter for Precision Engineering, Harbin Institute of Technology, Harbin, 150001, PR ChinaSchool of Mechanical and Electrical Engineering, Suqian University, Suqian, 223800, PR ChinaDepartment of Design, Manufacturing and Engineering Management, University of Strathclyde, Glasgow, G1 1XQ, UKCenter for Precision Engineering, Harbin Institute of Technology, Harbin, 150001, PR ChinaThe ultra-precision Ti–6Al–4V alloy parts are growing used in medical and aerospace industries, and which always work in the extreme working conditions such as high temperature, high pressure, and variable load. Thus, the requirements for machining accuracy and surface quality of parts are getting higher and higher. The ultrasonic elliptical vibration assisted cutting (UEVC) technology has been proved to be an effective method for the ultra-precision machining of Ti–6Al–4V alloy. However, in the UEVC process, the evolution mechanism of microstructure and microhardness, which directly affect the service performance and life, is unrevealed. In this paper, the comprehensive investigations of microstructural plastic deformation, grain refinement, phase transformation and microhardness of machined surface layer under conventional cutting (CC) and UEVC processes are carried out. The experimental results indicated that, due to the effects of UEVC technology, the plastic deformation area show obvious compression deformation, the depth of plastic deformation is less than 10 μm, there is no obvious phase transformation on the machined surface layer material, and the hardening rate of machined surface is more than 20%. These findings show the UEVC technology has a unique influence on the microstructure and microhardness of Ti–6Al–4V alloy, which have important implications for the cutting parameter design of ultra-precision Ti–6Al–4V alloy parts.http://www.sciencedirect.com/science/article/pii/S2238785424007439MicrostructureMicrohardnessTi–6Al–4V alloyUltra-precision cuttingUltrasonic elliptical vibration assisted cutting |
| spellingShingle | Rongkai Tan Shijing Jin Shuangquan Wei Jiacheng Wang Xuesen Zhao Zhanfeng Wang Qi Liu Tao Sun Evolution mechanism of microstructure and microhardness of Ti–6Al–4V alloy during ultrasonic elliptical vibration assisted ultra-precise cutting Journal of Materials Research and Technology Microstructure Microhardness Ti–6Al–4V alloy Ultra-precision cutting Ultrasonic elliptical vibration assisted cutting |
| title | Evolution mechanism of microstructure and microhardness of Ti–6Al–4V alloy during ultrasonic elliptical vibration assisted ultra-precise cutting |
| title_full | Evolution mechanism of microstructure and microhardness of Ti–6Al–4V alloy during ultrasonic elliptical vibration assisted ultra-precise cutting |
| title_fullStr | Evolution mechanism of microstructure and microhardness of Ti–6Al–4V alloy during ultrasonic elliptical vibration assisted ultra-precise cutting |
| title_full_unstemmed | Evolution mechanism of microstructure and microhardness of Ti–6Al–4V alloy during ultrasonic elliptical vibration assisted ultra-precise cutting |
| title_short | Evolution mechanism of microstructure and microhardness of Ti–6Al–4V alloy during ultrasonic elliptical vibration assisted ultra-precise cutting |
| title_sort | evolution mechanism of microstructure and microhardness of ti 6al 4v alloy during ultrasonic elliptical vibration assisted ultra precise cutting |
| topic | Microstructure Microhardness Ti–6Al–4V alloy Ultra-precision cutting Ultrasonic elliptical vibration assisted cutting |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424007439 |
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