Aluminium alloy, a method of making it and an application of the alloy
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United States of America Patent
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Nov 26, 1991
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N/A
app pub date -
Apr 5, 1989
filing date -
Jun 20, 1986
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Abstract
Aluminium alloy and a method of making it, whereby the alloy contains Zr and from 0 to 1% of one or more of the elements Mg, Si, Ag, Ni and Cu, the balance being mainly Al, the alloy being made on the basis of a melt which contains 0.5 to 2% by weight of Zr and which has been cast into particles by being cooled with such a high velocity that the Zr mainly is present in a supersaturated solution. The particles are consolidated and the Zr is precipitated as finely distributed dispersoids after a heat treatment at 300.degree. to 450.degree. C., and the alloy has an electrical conductivity of at least 58% IACS and a 10% softening temperature of at least 400.degree. C. The consolidation may for instance be carried out by extrusion.
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