Aluminium solid solution extension in Al - Sc - Mn - Cr alloys and effect alloying transition metals on recristallization of aluminium
Using optical microscopy, electrical resistivity and hardness measurements effect of small contents of the transition metals, Sc, Mn and Cr (up to 1 mass %) on the aluminium solid solution extension in the quaternary system Al - Sc - Mn - Cr was studied. Contents of Sc was constant and equals 0.2 mass %. Change of the Al solid solution extension in the quaternary system was compared with that in the respective ternary systems. Along with this effect of small contents of the transition metals on the recrystallization of aluminum was studied, as well. Mn and Cr was established to diminish solubility of each other in Al solid solution in presence of Sc and decrease insignificantly the recrystallization temperature of the Al - Sc alloys with 0.1 and 0.3 % Sc.