Effect of Fe and Cr on the Macro/Micro Tribological Behaviours of Copper-Based Composites
| Autor: | Yelong Xiao, Haibin Zhou, Zhongyi Zhang, Minwen Deng, Kunyang Fan, Lin Zhao, Taimin Gong, Pingping Yao, Yongqiang Liu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Interface layer
Technology Materials science Diffusion Mixing (process engineering) chemistry.chemical_element 02 engineering and technology Article Abrasion (geology) 0203 mechanical engineering General Materials Science Composite material Microscopy QC120-168.85 abrasion component Delamination QH201-278.5 Tribology 021001 nanoscience & nanotechnology Engineering (General). Civil engineering (General) Copper Cu-based composites TK1-9971 020303 mechanical engineering & transports chemistry Descriptive and experimental mechanics interface tribological performance Electrical engineering. Electronics. Nuclear engineering TA1-2040 0210 nano-technology Layer (electronics) |
| Zdroj: | Materials, Vol 14, Iss 3417, p 3417 (2021) Materials Volume 14 Issue 12 |
| ISSN: | 1996-1944 |
| Popis: | 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). |
| Databáze: | OpenAIRE |
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