Rapidly solidified and worked high strength magnesium alloy containing strontium
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United States of America Patent
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Sep 15, 1992
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N/A
app pub date -
May 23, 1991
filing date -
Jun 1, 1990
priority date (Note) -
Expired
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Abstract
An alloy based on magnesium with a load at rupture of at least 290 MPa and an elongation at rupture of at least 5%, the alloy comprising by weight, 2 to 11% aluminum, 0 to 1% manganese, 0.1 to 6% strontium, various possible impurities, and the remainder magnesium. The alloy has a structure including a matrix of fine grains of magnesium of a mean size below 3 .mu.m reinforced by intermetallic compounds dispersed homogeneously at the grain boundairies and having a mean size less than 1 .mu.m, the structure remaining unchanged if kept for more than 24 hours at a temperature up to 300.degree. C.
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