Experimental Examination of the Predicting Method Proposed for High Temperature Deformation Behavior of Solution Hardened Alloys

For examining the general applicability of the prediction method proposed in our previous paper (1991) for the flow behavior of solution hardened alloys, experimental stress-strain and creep curves obtained for Al-Mg alloys with various solute concentrations (3.0∼6.9 at%Mg) at various temperatures (573∼723 K) were used. It is suggested that all of the four parameters used for the prediction should be almost independent of solute concentration, and among them the three parameters concerning recovery and dislocation multiplication should depend on temperature. The stress-strain curves and creep curves predicted by considering the temperature dependence can well reproduce all of the experimental curves used, so long as the solute atmosphere drag mechanism should operate.