Oil-Retention and Oil-Bearing Tribological Properties of Nanoporous Copper Prepared Using a Chemical Dealloying Method
The nanoporous structure of oil-impregnated porous copper is closely related to its tribological and oil-retention properties, which are essential for its anti-friction and anti-wear, and long-lasting lubrication. In this study, different component Cu-Al precursors were obtained via plasma-activated...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-07-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/13/7/1232 |
| _version_ | 1797588254317346816 |
|---|---|
| author | Fei Chen Jiahao Zhao Hao Wang Honglin Li Guanchao Yin Meirong Cai Yangwei Wang Qiang Shen |
| author_facet | Fei Chen Jiahao Zhao Hao Wang Honglin Li Guanchao Yin Meirong Cai Yangwei Wang Qiang Shen |
| author_sort | Fei Chen |
| collection | DOAJ |
| description | The nanoporous structure of oil-impregnated porous copper is closely related to its tribological and oil-retention properties, which are essential for its anti-friction and anti-wear, and long-lasting lubrication. In this study, different component Cu-Al precursors were obtained via plasma-activated sintering, followed by a dealloying method to obtain bulk nanoporous copper with different porosities. The effect of the nanoporous structure on oil-retention capacity and tribological properties was investigated. The results showed that as the porosity increased from 47.48% to 67.69%, the oil content increased from 8.01% to 20.18%, while the oil-retention capacity decreased from 97.12% to 33.92% at 7000 r/min centrifugal speed. With the storage of oil, the average friction coefficient was reduced by 68.2–85.9%. The self-lubricating effect can be ascribed to an oil film formed on the surface, and the main wear forms were abrasive wear and fatigue wear. This study may provide guidance for the development of high-performance oil-impregnated lubricating nanoporous copper. |
| first_indexed | 2024-03-11T00:49:32Z |
| format | Article |
| id | doaj.art-15ffccbb11ef4000a101f7e9e6d9ac06 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T00:49:32Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-15ffccbb11ef4000a101f7e9e6d9ac062023-11-18T20:29:47ZengMDPI AGMetals2075-47012023-07-01137123210.3390/met13071232Oil-Retention and Oil-Bearing Tribological Properties of Nanoporous Copper Prepared Using a Chemical Dealloying MethodFei Chen0Jiahao Zhao1Hao Wang2Honglin Li3Guanchao Yin4Meirong Cai5Yangwei Wang6Qiang Shen7State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, ChinaState Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, ChinaState Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, ChinaState Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaBeijing Institute of Technology, Beijing 100081, ChinaState Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, ChinaThe nanoporous structure of oil-impregnated porous copper is closely related to its tribological and oil-retention properties, which are essential for its anti-friction and anti-wear, and long-lasting lubrication. In this study, different component Cu-Al precursors were obtained via plasma-activated sintering, followed by a dealloying method to obtain bulk nanoporous copper with different porosities. The effect of the nanoporous structure on oil-retention capacity and tribological properties was investigated. The results showed that as the porosity increased from 47.48% to 67.69%, the oil content increased from 8.01% to 20.18%, while the oil-retention capacity decreased from 97.12% to 33.92% at 7000 r/min centrifugal speed. With the storage of oil, the average friction coefficient was reduced by 68.2–85.9%. The self-lubricating effect can be ascribed to an oil film formed on the surface, and the main wear forms were abrasive wear and fatigue wear. This study may provide guidance for the development of high-performance oil-impregnated lubricating nanoporous copper.https://www.mdpi.com/2075-4701/13/7/1232oil-impregnated nanoporous copperoil retentiontribological propertieschemical dealloying |
| spellingShingle | Fei Chen Jiahao Zhao Hao Wang Honglin Li Guanchao Yin Meirong Cai Yangwei Wang Qiang Shen Oil-Retention and Oil-Bearing Tribological Properties of Nanoporous Copper Prepared Using a Chemical Dealloying Method Metals oil-impregnated nanoporous copper oil retention tribological properties chemical dealloying |
| title | Oil-Retention and Oil-Bearing Tribological Properties of Nanoporous Copper Prepared Using a Chemical Dealloying Method |
| title_full | Oil-Retention and Oil-Bearing Tribological Properties of Nanoporous Copper Prepared Using a Chemical Dealloying Method |
| title_fullStr | Oil-Retention and Oil-Bearing Tribological Properties of Nanoporous Copper Prepared Using a Chemical Dealloying Method |
| title_full_unstemmed | Oil-Retention and Oil-Bearing Tribological Properties of Nanoporous Copper Prepared Using a Chemical Dealloying Method |
| title_short | Oil-Retention and Oil-Bearing Tribological Properties of Nanoporous Copper Prepared Using a Chemical Dealloying Method |
| title_sort | oil retention and oil bearing tribological properties of nanoporous copper prepared using a chemical dealloying method |
| topic | oil-impregnated nanoporous copper oil retention tribological properties chemical dealloying |
| url | https://www.mdpi.com/2075-4701/13/7/1232 |
| work_keys_str_mv | AT feichen oilretentionandoilbearingtribologicalpropertiesofnanoporouscopperpreparedusingachemicaldealloyingmethod AT jiahaozhao oilretentionandoilbearingtribologicalpropertiesofnanoporouscopperpreparedusingachemicaldealloyingmethod AT haowang oilretentionandoilbearingtribologicalpropertiesofnanoporouscopperpreparedusingachemicaldealloyingmethod AT honglinli oilretentionandoilbearingtribologicalpropertiesofnanoporouscopperpreparedusingachemicaldealloyingmethod AT guanchaoyin oilretentionandoilbearingtribologicalpropertiesofnanoporouscopperpreparedusingachemicaldealloyingmethod AT meirongcai oilretentionandoilbearingtribologicalpropertiesofnanoporouscopperpreparedusingachemicaldealloyingmethod AT yangweiwang oilretentionandoilbearingtribologicalpropertiesofnanoporouscopperpreparedusingachemicaldealloyingmethod AT qiangshen oilretentionandoilbearingtribologicalpropertiesofnanoporouscopperpreparedusingachemicaldealloyingmethod |