Lattice misfit, precipitate morphology and distribution of Ni-, Co- und Fe-base superalloys
Subject area:
High Temperature Materials
Responsible Employees:
a) Figure of the (002) reflex by using HRXRD and b) microstructure image of a single crystalline Co-base superalloy. c) SANS spectrum and d) microstructure image of a polycrystalline Co-base superalloy.
Different material properties can be determined by using high resolution X-Ray diffraction (HRXRD) and small angle neutron scattering (SANS). These methods are used to analyze the lattice misfit, internal stresses and precipitate sizes. Two-phase alloy systems for high temperature applications are investigated in this project. The influence of temperature and deformation and the resulting precipitate morphology are analyzed in detail. This leads to a better understanding of these alloy systems for high temperature application. The multifunctional X-Ray diffractometer Bruker D8 Discover is available for the HRXRD investigations.
This study is funded by the Federal Ministry of Education and Research (BMBF) and is integrated in the project “An innovative testing machine for heating, quenching, tension, compression and cracking studies of industrial relevant high-temperature alloys – HiMat”.
This project is embedded in the collaborative research center SFB/TR 103 “From Atoms to Turbine Blades – a Scientific Approach for Developing the Next Generation of Single Crystal Superalloys”. The X-ray diffractometer Bruker D8 Discover is financed by the DFG.