| 摘要 |
Disclosed are high-strength, heat resistant aluminum-based alloys having a composition consisting of the following general formula AlaMbXd or Ala'MbQcXd, wherein M is at least one metal element selected from the group consisting of Co, Ni, Cu, Zn and Ag; Q is at least one metal element selected from the group consisting of V, Cr, Mn and Fe; X is at least one metal element selected from the group consisting of Li, Mg, Si, Ca, Ti and Zr; and a, a', b, c and d are, in atomic percentages; 80 </= a </= 94.5, 80</= a' </= 94, 5 </= b </= 15, 0.5 </= c </= 3 and 0.5 </= d </= 10. In the above specified alloys, aluminum intermetallic compounds are finely dispersed throughout an aluminum matrix and, thereby, the mechanical properties, especially strength and heat resistance, are considerably improved. The aluminum-based alloys of the present invention are very useful as light-weight, high-strength materials, namely, high specific strength materials, both at room temperature and elevated temperatures. |
