STUDY ON FRICTION AND WEAR PROPERTIES OF SILVER MATRIX BRUSH MATERIAL WITH DIFFERENT ADDITIVES
Keyword(s):
Friction and wear processes of AgCuX ( G , CF and AlN ) composites- CuAgV alloy friction pair and effects of different additive content in silver based composite on friction and wear behavior are studied in this paper. The microstructure of the brush wear surface is observed by SEM. The results show that when graphite content is up to 9 wt.%, Ag - Cu - CF - G composite exhibits the best wear properties; when the content of aluminum nitride is up to 0.5 wt.%, Ag - Cu - AlN - G composites has the most comprehensive performance. The wear loss of both composites arises with the increase of both pressure and speed, but when speed reaches a critical value, the increased amplitude of wear loss tends to be steady.
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