Rotors of high power engines

A system, in particular suited to high power engines, comprising at least a rotor and means comprising active sections suitable for making rotate the rotor(s) due to their synchronised deformation, wherein the material of the rotor is chosen from:

• an Al—Fe—V—Si alloy, with between 0.1 and 15% in weight in Fe, between 0.3 and 15% in weight in V, between 0.1 and 5% in weight in Si, the remainder being Al and/or
• an Al—Fe—Ce alloy, with between 0.1 and 15% in weight in Fe, between 0.1 and 9% in weight in Ce, the remainder being Al;
• and/or
• an Al—Fe—Mo alloy, with between 0.1 and 15% in weight in Fe, between 0.3 and 9% in weight in Mo, the remainder being Al;
• and/or
• an Al—Yb/Gd-TR alloy, with between 1.0 and 20% in weight in Yb or Gd and between 0.1 and 1.0% in weight in rare earths;
• and/or
• an Al—Fe—Cr—Ti alloy with between 0.5 and 10% atoms of Fe, between 0.4 and 8% atoms of Cr, between 0.3 and 5% atoms of Ti, the remainder being Al and/or
• an Al—Fe—V alloy with between 0.1 and 15% in weight in Fe, between 0.1 and 5% in weight in V, the remainder being Al, the alloy comprising fine homogeneous grains and comprising a quantity of less than 0.3% in weight in relation to the overall weight of the Mg, Zr, Ce and/or Sr (inoculation) alloy and/or a quantity below 0.05% in weight of Ni, the alloy being preferably Al-12Fe-3V.