| Abstract Scope |
High-temperature alloys, so-called superalloys, are characterized by high heat resistance, mechanical strength (even at high temperatures), and excellent corrosion and oxidation resistance. Neutron (diffraction, small-angle neutron scattering, prompt gamma activation analysis) and complementary methods (SEM/TEM and atom probe tomography) are ideal tools for further improving and ultimately optimizing the microstructure of industrially relevant superalloys as VDM Alloy 780. This contribution provides an overview of how high-temperature neutron measurements supported byother techniques and special developed sample environment (e.g. a testing machine [1]) enable the in-situ monitoring of phase transformations and precipitation behavior [2]. In addition, the influence of hydrogen loading on superalloys is investigated. Resulting changes in lattice parameters as well as mechanical properties are discussed [3].
References:
[1] F. Kümmel et al., Metals, 2021, 11, 719
[2] C. Solis et al., J. Alloys Compd, 2022, 928, 167203
[3] O. Nagel et al., Script. Mater., 2025, 260, 1165994 |