| 摘要 |
An aluminum alloy having a composition represented by the general formula:<paragraph lvl="0"><in-line-formula>AlbalCUaMb or AlbalCUaMbTMc</in-line-formula>wherein M represents one or two elements selected between Mn and Cr; TM represents at least one element selected from the group consisting of Ti, V, Fe, Co, Ni and Zr; and a, b and c each represent an atomic percentage of 0<a<=3, 2<b<=5 and 0<c<=2, containing quasi-crystals in the structure thereof, and having an elongation of at least 10% and a Young's modulus of at least 85 GPa. The aluminum alloy excellent in mechanical properties such as high-temperature strength, ductility, impact strength and tensile strength and is provided as a rapidly-solidified material, a heat-treated material obtained by heat-treating the rapidly-solidified material, or a consolidated and compacted material obtained by consolidating and compacting the rapidly-solidified material.
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