Effect of multidirectional forging on the fine-grained structure development in a high-strength aluminum alloy
Mechanical behavior and microstructural evolution in an as-cast coarse-grained aluminum alloy 7475 were investigated during uniaxial compression and multidirectional forging (MDF) carried out at the temperature of 490 оС and the strain rate of ~10 –4 s –1. It has been shown that the deformation route provided by MDF is more suitable for flow softening and grain refinement in the present alloy under high-temperature deformation conditions.