%0 journal article
%@ 1013-9826
%A Rao, K.P.,Bagheripoor, M.,Dieringa, H.,Hort, N.

%D 2017
%J Key Engineering Materials, Advances in Engineering Plasticity and its Application XIII
%N 
%P 232-237 
%R doi:10.4028/www.scientific.net/KEM.725.232
%T High Temperature Deformation of Cast ZW11 Magnesium Alloy with Very Large Grain Size
%U https://doi.org/10.4028/www.scientific.net/KEM.725.232
 
%X Magnesium (Mg) alloys are considered for biomedical applications due to their matching,bone density and biodegradable/abioabsorable nature. Mg-1% Zinc-1% Yttrium (ZW11) alloy was cast using a direct chill slow cooling process to obtain dense ingot with uniform composition.,However, the resultant alloy developed a very coarse grained microstructure with a grain size in the range of 2,600 to 4,000 μm (2.6-4.0 mm). The hot working behavior of ZW11 alloy has been,investigated using compression tests in the temperature and strain rate ranges of 340-540 oC and,0.0003 – 10 s-1 to evaluate the optimum processing parameters. A processing map has been developed on the basis of the flow stress data. The processing map reveals a window of workability in the temperature and strain rate ranges of 460-540 °C and 0.0003-10 s-1 and regimes of flow,instability. The microstructures of the deformed alloy provided support to the processing map.