The phase equilibria in a commercial aluminum alloy are studied by thermography, particularly, by differential barothermal
analysis, in the pressure range from 10 to 150 MPa at temperatures below 960 K. The liquidus temperature is found to increase
insignificantly with the pressure, and the solidus temperature increases jumpwise at a pressure of 60 MPa. The phase
pT diagram of the aluminum alloy and a eutectic model of the baric dependences of the solidus and liquidus temperatures are
proposed.
PACS numbers 65.60.+a - 65.40.-b
Original Russian Text © A.G. Padalko, A.N. Veselov, G.V. Talanova, 2008, published in Metally, 2008, No. 5, pp. 65–71.