Effect of matrix strengthening on sliding wear properties of SiC_p/2024Al composites

摘要

The sliding wear tests on the SiC_p/2024Al composites fabricated by the powder metallurgy technique were carried out. It was indicated that both the reinforcement size and matrix strengthening have a significant effect on the wear properties of the composites. The wear resistance of the composites increases with increasing SiC particulate size and is improved considerably after the T6-treatment; the effect of the ma- trix strengthening on the wear resistance of the composites increases with decreasing SiC particulate size. For the composites containing various particulate sizes, the wear properties of the composites cannot the directly correlated to the bulk hardness (HRB) of the composites.