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ALUMINIUM ALLOY PRODUCTS, AND METHODS OF MAKING SUCH ALLOY PRODUCTS

  • US 20160102388A1
  • Filed: 05/07/2014
  • Published: 04/14/2016
  • Est. Priority Date: 05/07/2013
  • Status: Active Grant
First Claim
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1. A metal powder source material for making an aluminium-based sintered product by a powder metallurgy route, comprising a mixture of first, second and third aluminium-containing powders;

  • wherein the first powder is of a hypereutectic aluminium-silicon-copper-magnesium alloy, the second powder is of a near-eutectic aluminium-silicon alloy containing from 9 to 13 wt % silicon, and the third powder is of aluminium or a hypoeutectic aluminium alloy containing alloying constituents other than silicon and less than 9 wt % silicon;

    the first and second powders are present in relative proportions to one another lying in the range 35;

    65 wt % to 65;

    35 wt %; and

    the third powder is present in a proportion of up to 35 wt % of the total weight of the three said aluminium-containing powders.

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