%0 journal article
%@ 1022-6680
%A Gilles, R., Mukherji, D., Eckerlebe, H., Strunz, P., Roesler, J.

%D 2011
%J Advanced Materials Research, EURO Superalloys 2010

%P 42-47 
%R doi:10.4028/www.scientific.net/AMR.278.42
%T In Situ Investigation with Neutrons on the Evolution of Gamma' Precipitates at High Temperatures in a Single Crystal Ni-Base Superalloy
%U https://doi.org/10.4028/www.scientific.net/AMR.278.42
 
%X Single crystal Ni-base superalloys based on the g / g`m system are widely used in gas turbine applications. To understand the formation of  precipitates, including size distribution and growth, we performed in situ small-angle neutron scattering (SANS) measurements at elevated temperatures and - together with TEM as well as SEM imaging - studied changes in the precipitates in short and long time scale. In the early stages, a bimodal precipitate size distribution is observed, which (depending on the annealing temperature) changes to a cuboidal or nearly spherical morphology with nearly unimodal size distribution.