Abstract
We conducted the study of viscosity liquid alloys AlMg6Li2(Sc) under the heating and subsequent cooling of samples. Results of these measurements allowed defining critical temperatures. The processing melt by heating above the critical temperature cause irreversible destruction of micro-inhomogeneities of hereditary nature. The irreversible destruction of micro-inhomogeneities improves the casting properties of the melts AlMg6Li2(Sc).