Abstract
The shape, size, and microhardness of composite materials based on an Al-2Cu-1.6Mn-0.4Zr alloy (wt %) reinforced with nanodiamond particles in an amount of 0–10 vol % depending on the duration of mechanical alloying (MA) are investigated. The maximal treatment time in a planetary mill is 15 h. It is shown that, as the MA time increases, the average granule size of composite materials fabricated using chips matrix particles of about 1000 μm in size decreases to 30 μm. During MA, the material microhardness increases to 270–320 HV.
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