Abstract
The effect of thermomechanical treatment (TMT) on the structures, precipitation behaviour, and mechanical properties of commercial-grade aluminium 2036 alloy has been investigated. In both the solutiontreated and aged and the TM-treated conditions, the main strengthening phase was observed to be θ′ Prestraining of the material accelerates the precipitation of θ′-phase and reduces the ageing time required to achieve maximum strength. By raising the temperature of deformation, the distribution of dislocations changes from cellular to uniform and also causes a finer and more uniform distribution of θ′-precipitates. The combined effect of uniform dislocation and θ′-precipitate distribution results in increased strength without any significant loss in ductility.
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