Industry wishes to develop more efficient materials for use in severe and complex conditions. Thus, not only are new materials continually developed, but also a better understanding of these materials is sought. In the car-making industry, any reduction in the weight of moving parts lowers the level of vibration and fuel consumption, leading eventually to a more efficient vehicle. The properties of metal matrix composites (MMCs), such as increased wear and temperature resistance, as well as low density, have been the subject of many studies. In the study presented, the coupling of MMCs with hypereutectic alloys composing brake disks / brake pads has been investigated. Brake disks are usually made of cast iron and are one of the moving parts that can gain in efficiency if they are lightened. A characterization methodology to identify the wear mechanisms of the tribological couple, and to evaluate the behaviour of these new materials has been defined. One of the features of the couple is the constitution of a transfer layer on the disk, because that has an important effect on the behaviour of the couple.
Characterization methodology of a tribological couple: metal matrix composite/brake pads
Methodik zur Charakterisierung eines tribologischen Paares: Metallmatrixverbundwerkstoff/Bremsscheibe (Bremsbelag)
Materials Characterization ; 40 , 3 ; 169-188
1998
20 Seiten, 27 Bilder, 7 Tabellen, 8 Quellen
Aufsatz (Zeitschrift)
Englisch
Bremse , Fahrzeugbauteil , Verschleißmechanismus , Verschleißfestigkeit , Verschleißversuch , Siliciumcarbid , dispersionsgehärteter Werkstoff , Aluminiumlegierung , Siliciumzusatz , optische Mikroskopie , Abrasivverschleiß , Verschleißteilchen , Rasterelektronenmikroskopie , energiedispersive Spektrometrie , ESCA-Spektroskopie , Mikrohärte , Adhäsion , Bremsscheibe , Bremsbelag , Aluminiumsiliciumlegierung
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