Effect of particle size and ratio of B4C reinforcement on properties and morphology of nanocrystalline Al2024-B4C composite powders

In this study, two new milling models based on the size of reinforcement materials were developed. Al2024-B4C nanostructured composite powders containing 0, 5, 10 and 20 weight percentage (wt.%) of B4C particles with two different particle sizes (d50 = 49 μm and d50 = 5 μm) as reinforcement material were produced by mechanical milling. The milling was carried out in a planetary ball mill for 10 h with a rotating speed of 400 rpm and ball to...