Effect of degree of deformation on the structure and properties of naturally aged alloy 1163

Conclusions

• 1. Deformation by rolling of naturally aged alloy 1163 with ε ≥7% leads to a reduction in fracture toughness.

• 2. After deformation with a degree of 11–15%, compared with deformation ε=7% adopted previously for manufacturing alloy D16 sheets, a greater increase in strength properties is achieved with the same levels of ductility, fracture toughness, homogeneous distribution of dislocations, and also low-cycle fatigue indices not lower than in the original naturally aged condition.