| 摘要 |
<p>A method for the production of an aluminium component by a powder metallurgy route. The method comprises the steps of producing a first powder which is a near-eutectic aluminium-silicon based alloy containing from 9 to 13 wt % silicon; producing a second powder which is a hypereutectic aluminium-silicon based alloy; producing a powder mixture comprising desired proportions of the first powder, the second powder, and zinc or zinc-based powder. The first powder and the second powder are in relative proportions to one another lying in the range from 25:75 % to 75:25 %, and the zinc forms at least 0.5 wt % of the powder mixture. The method also comprises compacting the powder mixture and sintering the compacted powder.</p> |
