Effect of Fe and Cr on the Macro/Micro Tribological Behaviours of Copper-Based Composites
Fe and Cr are regarded as two of the most important friction components in Cu-based composites (Cu–BCs). In this study, the microstructural detection and micro- and macro-tribology evaluation of Cu–BCs containing Fe and Cr were performed. The results indicated that both Fe and Cr formed diffusion in...
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MDPI AG
2021-06-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/12/3417 |
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| author | Zhongyi Zhang Haibin Zhou Pingping Yao Kunyang Fan Yongqiang Liu Lin Zhao Yelong Xiao Taimin Gong Minwen Deng |
| author_facet | Zhongyi Zhang Haibin Zhou Pingping Yao Kunyang Fan Yongqiang Liu Lin Zhao Yelong Xiao Taimin Gong Minwen Deng |
| author_sort | Zhongyi Zhang |
| collection | DOAJ |
| description | Fe and Cr are regarded as two of the most important friction components in Cu-based composites (Cu–BCs). In this study, the microstructural detection and micro- and macro-tribology evaluation of Cu–BCs containing Fe and Cr were performed. The results indicated that both Fe and Cr formed diffusion interfaces with the copper matrix. Because of the generation of a defect interface layer, the Cr/Cu interface exhibited a low bonding strength. Owing to the excellent binding interface between Fe and Cu, the high coefficient of friction (COF) of Fe, and the formation of a mechanical mixing layer promoted by Fe, the Cu–BCs containing Fe presented better friction performance under all braking energy per unit area (BEPUA) values. The main wear mechanism of Cu–BCs containing Fe and Cr changed from abrasion to delamination with an increase in BEPUA, and the delamination of Cu–BCs containing Fe was induced by breaks in the mechanical mixed layer (MML). |
| first_indexed | 2024-03-10T10:14:58Z |
| format | Article |
| id | doaj.art-b5954a438ae848ffb2f59d1e8e21e544 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T10:14:58Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b5954a438ae848ffb2f59d1e8e21e5442023-11-22T00:56:44ZengMDPI AGMaterials1996-19442021-06-011412341710.3390/ma14123417Effect of Fe and Cr on the Macro/Micro Tribological Behaviours of Copper-Based CompositesZhongyi Zhang0Haibin Zhou1Pingping Yao2Kunyang Fan3Yongqiang Liu4Lin Zhao5Yelong Xiao6Taimin Gong7Minwen Deng8State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaSchool of Mechanical Engineering, Chengdu University, Chengdu 610106, ChinaAerospace System Engineering Shanghai, Shanghai 200000, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaFe and Cr are regarded as two of the most important friction components in Cu-based composites (Cu–BCs). In this study, the microstructural detection and micro- and macro-tribology evaluation of Cu–BCs containing Fe and Cr were performed. The results indicated that both Fe and Cr formed diffusion interfaces with the copper matrix. Because of the generation of a defect interface layer, the Cr/Cu interface exhibited a low bonding strength. Owing to the excellent binding interface between Fe and Cu, the high coefficient of friction (COF) of Fe, and the formation of a mechanical mixing layer promoted by Fe, the Cu–BCs containing Fe presented better friction performance under all braking energy per unit area (BEPUA) values. The main wear mechanism of Cu–BCs containing Fe and Cr changed from abrasion to delamination with an increase in BEPUA, and the delamination of Cu–BCs containing Fe was induced by breaks in the mechanical mixed layer (MML).https://www.mdpi.com/1996-1944/14/12/3417abrasion componentinterfacetribological performanceCu-based composites |
| spellingShingle | Zhongyi Zhang Haibin Zhou Pingping Yao Kunyang Fan Yongqiang Liu Lin Zhao Yelong Xiao Taimin Gong Minwen Deng Effect of Fe and Cr on the Macro/Micro Tribological Behaviours of Copper-Based Composites Materials abrasion component interface tribological performance Cu-based composites |
| title | Effect of Fe and Cr on the Macro/Micro Tribological Behaviours of Copper-Based Composites |
| title_full | Effect of Fe and Cr on the Macro/Micro Tribological Behaviours of Copper-Based Composites |
| title_fullStr | Effect of Fe and Cr on the Macro/Micro Tribological Behaviours of Copper-Based Composites |
| title_full_unstemmed | Effect of Fe and Cr on the Macro/Micro Tribological Behaviours of Copper-Based Composites |
| title_short | Effect of Fe and Cr on the Macro/Micro Tribological Behaviours of Copper-Based Composites |
| title_sort | effect of fe and cr on the macro micro tribological behaviours of copper based composites |
| topic | abrasion component interface tribological performance Cu-based composites |
| url | https://www.mdpi.com/1996-1944/14/12/3417 |
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