%0 Journal Article
%T Phase transformation and liquid density redistribution during solidification of Ni-based superalloy Inconel 718
%A Wang Ling
%A Gong He
%A Zhao Haofeng
%J China Foundry
%D 2012
%I Foundry Journal Agency
%X The influences of chemical segregation and phase transformation on liquid density variation during solidification of Ni-based supperalloy Inconel 718 were investigated using SEM and EDS. It was found that significant segregation in liquid prompts high Nb phase to precipitate directly from liquid, which results in the redistribution of alloy elements and liquid density in their vicinity. The term ˇ°inter-precipitate liquid densityˇ± is therefore proposed and this concept should be applied to determine the solidification behavior of superalloy Inconel 718.
%K Inconel 718
%K Nb segregation
%K phase transformation
%K inter-precipitate density inversion
%U http://www.foundryworld.com/uploadfile/2012082742867057.pdf