Tribological properties of TC4 titanium alloy treated by plasma nitriding at different temperatures
The wear resistance of TC4 titanium alloy was improved by plasma nitriding and the optimum nitriding temperature was investigated. TC4 titanium alloy was nitrided at 650, 700, 750, 800, 850℃ and 900℃ with LDM1-100 plasma nitriding equipment respectively,the temperature holding time is 10 h for each...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2019-02-01
|
| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://html.rhhz.net/CHXB/html/2020-2-156.htm |
| _version_ | 1797968154013466624 |
|---|---|
| author | YUAN Yun-gang KANG Jia-jie YUE Wen FU Zhi-qiang ZHU Li-na SHE Ding-shun WANG Cheng-biao |
| author_facet | YUAN Yun-gang KANG Jia-jie YUE Wen FU Zhi-qiang ZHU Li-na SHE Ding-shun WANG Cheng-biao |
| author_sort | YUAN Yun-gang |
| collection | DOAJ |
| description | The wear resistance of TC4 titanium alloy was improved by plasma nitriding and the optimum nitriding temperature was investigated. TC4 titanium alloy was nitrided at 650, 700, 750, 800, 850℃ and 900℃ with LDM1-100 plasma nitriding equipment respectively,the temperature holding time is 10 h for each nitriding treatment. The microstructure, surface morphology, surface roughness, phase structure and hardness of nitrided samples at different temperatures were characterized by optical microscope, scanning electron microscope, white light three-dimensional topography instrument and microhardness tester. The tribological properties of TC4 titanium alloy after plasma nitriding were tested by CETR UMT-3 multifunctional friction and wear tester. The results show that the surface microhardness and roughness of TC4 titanium alloy increase with the increase of temperature. After nitriding at 900℃, the surface microhardness of TC4 titanium alloy reaches 1318HV<sub>0.05</sub>, which is about 4 times as high as that of the substrate (360HV<sub>0.05</sub>). The increase of hardness is due to the formation of hard nitride phases (TiN and Ti<sub>2</sub>N phases) on the surface of nitrided sample and the nitride content increases with the increase of nitriding temperature. The load-carrying capacity of nitrided samples at 800℃ and 900℃ is significantly higher than that of nitriding samples at low temperatures (below 750℃). Compared with the original TC4 sample, the wear volume of the nitrided sample significantly reduces. When nitriding temperature is 850℃, the wear volume of the nitrided sample is 1.2% (1 N), 3.0% (3 N) and 62.2% (5 N) of that of the untreated sample, and the improvement of wear resistance of the sample is the most obvious. |
| first_indexed | 2024-04-11T02:42:28Z |
| format | Article |
| id | doaj.art-a309f3bf870d484c81be05b8654610ce |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:42:28Z |
| publishDate | 2019-02-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-a309f3bf870d484c81be05b8654610ce2023-01-02T18:50:38ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812019-02-0148215616220200221Tribological properties of TC4 titanium alloy treated by plasma nitriding at different temperaturesYUAN Yun-gang0KANG Jia-jie1YUE Wen2FU Zhi-qiang3ZHU Li-na4SHE Ding-shun5WANG Cheng-biao6School of Engineering and Technology, China University of Geosciences(Beijing), Beijing 100083, China;School of Engineering and Technology, China University of Geosciences(Beijing), Beijing 100083, China;School of Engineering and Technology, China University of Geosciences(Beijing), Beijing 100083, China;School of Engineering and Technology, China University of Geosciences(Beijing), Beijing 100083, China;School of Engineering and Technology, China University of Geosciences(Beijing), Beijing 100083, China;School of Engineering and Technology, China University of Geosciences(Beijing), Beijing 100083, China;Zhengzhou Institute, China University of Geosciences(Beijing), Zhengzhou 451283, China;The wear resistance of TC4 titanium alloy was improved by plasma nitriding and the optimum nitriding temperature was investigated. TC4 titanium alloy was nitrided at 650, 700, 750, 800, 850℃ and 900℃ with LDM1-100 plasma nitriding equipment respectively,the temperature holding time is 10 h for each nitriding treatment. The microstructure, surface morphology, surface roughness, phase structure and hardness of nitrided samples at different temperatures were characterized by optical microscope, scanning electron microscope, white light three-dimensional topography instrument and microhardness tester. The tribological properties of TC4 titanium alloy after plasma nitriding were tested by CETR UMT-3 multifunctional friction and wear tester. The results show that the surface microhardness and roughness of TC4 titanium alloy increase with the increase of temperature. After nitriding at 900℃, the surface microhardness of TC4 titanium alloy reaches 1318HV<sub>0.05</sub>, which is about 4 times as high as that of the substrate (360HV<sub>0.05</sub>). The increase of hardness is due to the formation of hard nitride phases (TiN and Ti<sub>2</sub>N phases) on the surface of nitrided sample and the nitride content increases with the increase of nitriding temperature. The load-carrying capacity of nitrided samples at 800℃ and 900℃ is significantly higher than that of nitriding samples at low temperatures (below 750℃). Compared with the original TC4 sample, the wear volume of the nitrided sample significantly reduces. When nitriding temperature is 850℃, the wear volume of the nitrided sample is 1.2% (1 N), 3.0% (3 N) and 62.2% (5 N) of that of the untreated sample, and the improvement of wear resistance of the sample is the most obvious.http://html.rhhz.net/CHXB/html/2020-2-156.htmtc4 titanium alloyplasma nitridingmicrostructuretribological propertywear resistance |
| spellingShingle | YUAN Yun-gang KANG Jia-jie YUE Wen FU Zhi-qiang ZHU Li-na SHE Ding-shun WANG Cheng-biao Tribological properties of TC4 titanium alloy treated by plasma nitriding at different temperatures Cailiao gongcheng tc4 titanium alloy plasma nitriding microstructure tribological property wear resistance |
| title | Tribological properties of TC4 titanium alloy treated by plasma nitriding at different temperatures |
| title_full | Tribological properties of TC4 titanium alloy treated by plasma nitriding at different temperatures |
| title_fullStr | Tribological properties of TC4 titanium alloy treated by plasma nitriding at different temperatures |
| title_full_unstemmed | Tribological properties of TC4 titanium alloy treated by plasma nitriding at different temperatures |
| title_short | Tribological properties of TC4 titanium alloy treated by plasma nitriding at different temperatures |
| title_sort | tribological properties of tc4 titanium alloy treated by plasma nitriding at different temperatures |
| topic | tc4 titanium alloy plasma nitriding microstructure tribological property wear resistance |
| url | http://html.rhhz.net/CHXB/html/2020-2-156.htm |
| work_keys_str_mv | AT yuanyungang tribologicalpropertiesoftc4titaniumalloytreatedbyplasmanitridingatdifferenttemperatures AT kangjiajie tribologicalpropertiesoftc4titaniumalloytreatedbyplasmanitridingatdifferenttemperatures AT yuewen tribologicalpropertiesoftc4titaniumalloytreatedbyplasmanitridingatdifferenttemperatures AT fuzhiqiang tribologicalpropertiesoftc4titaniumalloytreatedbyplasmanitridingatdifferenttemperatures AT zhulina tribologicalpropertiesoftc4titaniumalloytreatedbyplasmanitridingatdifferenttemperatures AT shedingshun tribologicalpropertiesoftc4titaniumalloytreatedbyplasmanitridingatdifferenttemperatures AT wangchengbiao tribologicalpropertiesoftc4titaniumalloytreatedbyplasmanitridingatdifferenttemperatures |