Compression of Mg - 0.1Ca (wt.%) 300C - 10 -1, 10 -2, 10 -3 s-1

A key factor in the limited formability is the strong texture that develops during fabrication of wrought Mg alloys by rolling and extrusion. The predominance of the basal slip and extension twinning mechanisms leads to a basal-dominated texture characterized by the basal plane poles oriented parallel to the applied force direction. For Mg alloys with non-rare earth (RE) element additions (e.g. Al, Sn), this basal texture persists even after recrystallization. Select alloying additions (e.g. RE-type and calcium) have demonstrated success in altering the basal texture following recrystallization. Although the determinant mechanism underlying the texture evolution remains unclear, several contributing factors have been identified. The UF team seeks to understand the role of alloying elements Ca and Zn, specifically solutes on the texture evolution in Mg. One of the factors related to solute effects on texture is Dynamic Strain Aging (DSA) which is observed as serrations in compression stress - strain curves at high temperatures. In this case, Mg - 0.1Ca compressed at 300C show no serrations, thus no DSA.