Improvement in bending formability of rolled magnesium alloy through precompression and subsequent annealing

A remarkable improvement in the bending formability of a rolled magnesium alloy at room temperature is achieved through application of precompression and subsequent annealing. This combined treatment results in the formation of a new grain structure with two texture components whose basal poles are oriented nearly along the rolling direction and normal direction. The tensile deformation occurring in the outer region of the samples during bending is effectively accommodated by the activated {10–12} twinning and promoted basal slip, which consequently results in a significant improvement in the bending formability of the alloy.