High temperature resistant magnesium alloys
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United States of America Patent
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Jul 27, 2004
Grant Date -
Jul 10, 2003
app pub date -
Mar 14, 2002
filing date -
Jan 10, 2002
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Abstract
A magnesium-based alloy containing at least 92 wt % magnesium, 2.7 to 3.3 wt % neodymium, 0.0 to 2.6 wt % yttrium, 0.2 to 0.8 wt % zirconium, 0.2 to 0.8 wt % zinc, 0.03 to 0.25 wt % calcium, and 0.00 to 0.001 wt % beryllium. The alloy may additionally contain up to 0.007 wt % iron, up to 0.002 wt % nickel, up to 0.003 wt % copper, and up to 0.01 wt % silicon, and incidental impurities. The alloy may contain from 0.2 to 0.5 wt % Zn, and from 0.03 to 0.15 wt % Ca, and 2.9-3.2 wt % Nd, 1.9-2.1 wt % Y, 0.3-0.5 wt % Zr, 0.2-0.4 wt % Zn, and 0.03-0.12 wt % Ca.
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