%0 journal article
%@ 0167-577X
%A Prasad, Y.V.R.K.,Rao, K.P.,Hort, N.,Kainer, K.U.

%D 2008
%J Materials Letters
%N 26
%P 4207-4209 
%R doi:10.1016/j.matlet.2008.06.035
%T Hot working parameters and mechanisms in as-cast Mg-3Sn-1Ca alloy
%U https://doi.org/10.1016/j.matlet.2008.06.035
26 
%X The hot working characteristics of as-cast Mg–3Sn–1Ca alloy have been studied using processing-map technique and the kinetic rate equation. The map exhibited two domains; one in the lower strain rate range (0.0003–0.01 s− 1) and the other in the higher strain rate range (0.1–10 s− 1)—both falling in the same temperature range of 350–550 s− 1. Hot extrusion at 500 °C and a speed corresponding to an average strain rate of 3 s− 1 exhibited dynamically recrystallized microstructure. The estimated apparent activation energy values are higher than those for self-diffusion in pure magnesium suggesting that the large volume fraction of MgSnCa intermetallic particles causes significant back stress.