Abstract
The erosive-corrosive wear rate of a cast AlSi (LM6) alloy, 10 wt.% SiC particle composite in a slurry consisting of water containing sulphuric acid and hydrochloric acid and 40 wt.% sand (size: 150 ± 10 μm), has been predicted through factorial design of experiments. The wear rate (Y) can be expressed in terms of the coded values of radial distance (x1), angle of inclination of the samples with respect to their direction of rotation in the slurry (x2) and distance traversed (x3) by the following linear regression equation: Y = 21.2 + 14.87 x1 + 3.47 x2 + 4.025 x2 + 2.65x12 + 3.05x1x3 + 1.45x2x3 + 1.375x1x23. where the multiplication factor is 10 15m3/m. This equation suggests that radial distance has the maximum effect on the wear rate and one must take into account the effect of interaction of the parameters for predicting wear rate of composite materials.
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