In the selective electron beam melting approach an is used to partially melt material powder. Based on local high energy input, solidification conditions and likewise microstructures strongly deviate from conventional investment casting processes. The repeated input into during processing leads partial remelting of already existing microstructure. To closer investigative this effect remelting, ...

Single crystal material, of CMSX-4® alloy composition, was cast and secondary orientation controlled at the machining stage, to produce c-ring cross-section tubes with known crystallographic orientations. The were coated NaCl before being subject loading up 700MPa heated for durations 2 hrs 550°C in flowing environments containing air SO2.No cracking observed short term tests that run absence e...

The elastic properties of the single-crystal nickel-base superalloy CMSX-4 used as a blade material in gas turbines were investigated by sonic resonance method temperature interval between room and 1300 °C. Elastic constants at such high temperatures are needed to model mechanical behavior during manufacturing (hot isostatic pressing) well technical accidents which may happen service (overheati...

A Crystal Plasticity Finite Element (CPFE) framework is proposed for modeling the non-Schmid yield behavior of L12 type Ni3Al crystals and Ni-based superalloys. This relies on estimation model parameters directly from orientation- temperature-dependent experimental stress data. The inelastic deformation extended to precipitate phase superalloys in a homogenized dislocation density based crystal...

We present a new approach for the quantitative study of high-temperature diffusion in compositionally complex superalloys on nano-scale. As key element, utilizes ?/?'-microstructure itself as intrinsic nano-diffusion-couple (NDC). By establishing equilibrium at one temperature followed by annealing different temperature, well-defined transient states are generated which studied using STEM-EDXS....