The Effects of Applied Pressure and Die Temperature on the Structure and Mechanical Properties of Squeeze Cast Al–4.8Cu–1.2Mg Wrought Alloy

Abstract

The work deals with studying the effects of the die temperature from 200 to 400°C and the pressure from 105 to 705 MPa applied to the liquid melt, on the structure transformation and mechanical properties of a wrought Al–4.8Cu–1.2Mg alloy processed by squeeze casting. Complex study of the structure was carried out. It was shown that the optimum alloy mechanical properties (YS=365 MPa, UTS=455 MPa, δ=5%) were achieved at the applied pressure of 420 MPa, when the alloy exhibited the strength that corresponds to the hot-deformed alloy condition.