| 摘要 |
<p>First aluminum alloy which comprises 0.3 to 6 mass% of Mg, 0.3 to 10 mass% of Si, 0.05 to 1 mass% of Zn, 0.001 to 0.3 mass% of Sr and the balanced amount of Al and impurities; a second aluminum alloy which comprises the elements contained in the first alloy in amounts described above and further comprise one or more selected from among Cu, Fe, Mn, Cr, Zr, Ti, Na and Ca; A third aluminum alloy comprising 0.1 to 6 mass% of Mg, 0.3 to 12.5 mass% of Si, 0.01 mass% or more and less than 1 mass% of Cu, 0.01 to 3 mass% of Zn, 0.001 to 0.5 mass% of Sr and the balanced amount of Al and impurities; and a forth aluminum alloy which comprises the elements contained in the third alloy in amounts described above and further comprises one or more selected from among Ti, B, C, Fe, Cr, Mn, Zr, V, Sc, Ni, Na, Sb, Ca, Sn, Bi, and In.</p> |
