| 摘要 |
High strength aluminum magnesium alloys that can be used at temperatures from about - 420°F (-251°C) up to about 650°F (343°C) are described. The alloys are strengthened by dispersion of particles based on the L1 2 intermetallic compound Al 3 X. These alloys comprise aluminum, magnesium, at least one of scandium, erbium, thulium, ytterbium, and lutetium; and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, and niobium. These alloys may also optionally contain zinc, copper, lithium and silicon. |
