Influence of Contacting Pressure on Current Stability and Tribological Properties of CPMM Collector Materials against Cu/Cr Alloy under High Sliding Speed with Electric Current

Jian Li; Yong Zhen Zhang; Peng Li; Bao Shangguan; San Ming Du

doi:10.4028/www.scientific.net/AMR.51.99

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Influence of Contacting Pressure on Current Stability and Tribological Properties of CPMM Collector Materials against Cu/Cr Alloy under High Sliding Speed with Electric Current
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Influence of Contacting Pressure on Current Stability and Tribological Properties of CPMM Collector Materials against Cu/Cr Alloy under High Sliding Speed with Electric Current

Abstract:

Dry sliding tests with electric current were carried out on a pin-on-disc system tribometer in this study, where copper-base powder metallurgy material and copper alloy QCr0.5 were used as the pin and the disc respectively. The researches were aimed at exploring relation between tribological properties and current stability of the couple under different loads. The results indicate that the current stability and friction coefficient increases with current and load. Moreover, co-effect between the current stability and tribological behavior has been found, which behaves in the way that the higher the current stability, the higher dynamic current collection capability and tribological properties.