Tribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopump
Abstract The friction coefficient and wear rate of pretreated graphite with liquid nitrogen were obtained by using a ball-on-disk tester, and the wear of GCr15–graphite seal pairs with the low-temperature time-dependent pretreatment was discussed by comparing the wear morphology. The results show th...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2023-08-01
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| Series: | Friction |
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| Online Access: | https://doi.org/10.1007/s40544-023-0759-1 |
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| _version_ | 1850224252688531456 |
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| author | Yangyang Zhao Guoyuan Zhang Junqian Wang He Wang Weigang Zhao Qunfeng Zeng |
| author_facet | Yangyang Zhao Guoyuan Zhang Junqian Wang He Wang Weigang Zhao Qunfeng Zeng |
| author_sort | Yangyang Zhao |
| collection | DOAJ |
| description | Abstract The friction coefficient and wear rate of pretreated graphite with liquid nitrogen were obtained by using a ball-on-disk tester, and the wear of GCr15–graphite seal pairs with the low-temperature time-dependent pretreatment was discussed by comparing the wear morphology. The results show that liquid nitrogen pretreatment can affect the hardness and interlayer spacing of graphite. The range of the friction coefficients of pretreated graphite changes from 0.17 to 0.22. With the increase of liquid nitrogen pretreatment time, the wear mechanism of graphite would change from dominated three-body wear to adhesion wear. The experimental results of the mechanical seal with liquid nitrogen pretreatment show that the wear rate of stator is less than 0.00165 mm3·N−1·m−1, and the graphite shows a good low-temperature compatibility. |
| format | Article |
| id | doaj-art-51466e12ef284181a248b9ce0f8f5fbe |
| institution | OA Journals |
| issn | 2223-7690 2223-7704 |
| language | English |
| publishDate | 2023-08-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Friction |
| spelling | doaj-art-51466e12ef284181a248b9ce0f8f5fbe2025-08-20T02:05:40ZengTsinghua University PressFriction2223-76902223-77042023-08-0112230531810.1007/s40544-023-0759-1Tribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopumpYangyang Zhao0Guoyuan Zhang1Junqian Wang2He Wang3Weigang Zhao4Qunfeng Zeng5School of Mechano-Electronic Engineering, Xidian UniversitySchool of Mechano-Electronic Engineering, Xidian UniversitySchool of Mechano-Electronic Engineering, Xidian UniversitySchool of Mechano-Electronic Engineering, Xidian UniversityXi’an Aerospace Propulsion InstituteKey Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong UniversityAbstract The friction coefficient and wear rate of pretreated graphite with liquid nitrogen were obtained by using a ball-on-disk tester, and the wear of GCr15–graphite seal pairs with the low-temperature time-dependent pretreatment was discussed by comparing the wear morphology. The results show that liquid nitrogen pretreatment can affect the hardness and interlayer spacing of graphite. The range of the friction coefficients of pretreated graphite changes from 0.17 to 0.22. With the increase of liquid nitrogen pretreatment time, the wear mechanism of graphite would change from dominated three-body wear to adhesion wear. The experimental results of the mechanical seal with liquid nitrogen pretreatment show that the wear rate of stator is less than 0.00165 mm3·N−1·m−1, and the graphite shows a good low-temperature compatibility.https://doi.org/10.1007/s40544-023-0759-1graphitelow-temperature pretreatmentmechanical sealfriction and wear |
| spellingShingle | Yangyang Zhao Guoyuan Zhang Junqian Wang He Wang Weigang Zhao Qunfeng Zeng Tribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopump Friction graphite low-temperature pretreatment mechanical seal friction and wear |
| title | Tribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopump |
| title_full | Tribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopump |
| title_fullStr | Tribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopump |
| title_full_unstemmed | Tribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopump |
| title_short | Tribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopump |
| title_sort | tribological properties of low temperature time dependent pretreated graphite for mechanical seal pairs in high speed turbopump |
| topic | graphite low-temperature pretreatment mechanical seal friction and wear |
| url | https://doi.org/10.1007/s40544-023-0759-1 |
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