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Mechanical and tribological behaviors of copper metal matrix composites for brake pads used in high-speed trains.
- Source :
-
Tribology International . Mar2018, Vol. 119, p585-592. 8p. - Publication Year :
- 2018
-
Abstract
- As one of the most important components in high-speed trains, demands are improved on the mechanical and tribological properties of materials for brake pads. In this study, a newly developed copper metal matrix composite (Cu-MMC) for the aforementioned brake pads was fabricated by powder metallurgy route. The microstructure and mechanical properties of Cu-MMC were investigated. Cu-MMC was tribo-evaluated by a full-scale dynamometer, and special attention was paid on the braking performances during emergency stop-braking at initial speeds from 300 to 380 km/h. Examination and analysis of the worn surface and subsurface corroborated the wear mechanism. The results indicate that Cu-MMC exhibits excellent properties and can meet the technical requirements, so it holds great promise for applications in high-speed trains. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0301679X
- Volume :
- 119
- Database :
- Academic Search Index
- Journal :
- Tribology International
- Publication Type :
- Academic Journal
- Accession number :
- 127792339
- Full Text :
- https://doi.org/10.1016/j.triboint.2017.11.038