Double-bent-crystal sans investigation of the creep exposed CMSX2 single crystal

The single crystal superalloy CMSX2 was studied after a creep exposition at high temperature by small-angle neutron scattering and transmission electron microscopy. The anisotropic character of scattering curves displayed the platelet shape of γ′ precipitates. The presence of an interparticle maximum enabled to evaluate the characteristic interparticle distance. Both SANS and TEM results indicate the influence of the creep exposition on the morphology of the precipitates.