The effect of the hardness of a counterface on the sliding wear behavior of SiC whisker or of SiC particle reinforced aluminum matrix composites (designated as MMCw. MMCp) was investigated by pin-on-disk tests. The counterface materials were 0. 45% carbon steel and tool steel with a hardness range (HV=180-1000) obtained by different heat treatment. https://lecoureures.shop/product-category/ski-de-fond-equipement-batons/