The constantly growing challenges in the aerospace industry are associated with developments in turbine engine technology for improved materials to maximize the working temperature of turbine blades for higher energy efficiency and durability. Due to mechanical stress during operation, material parameters such as elasticity and mechanical damping is particularly relevant for the simulation and design of turbine blades. The determination of material parameters at highest temperatures places particularly high requirements on the measurement technique. One method for determining elasticity and damping properties is resonance ultrasound spectroscopy. Krieg(2018) was able to develop a measurement setup that enables the elasticity tensor to be determined up to a temperature of 1500°C. In this work, various nickel-base superalloys are examined for their elastic properties up to 900°C and a correlation between the element composition and the decrease behavior of the Young's modulus is established. Also, the influence of different process routes on the microstructure resulting in changes of elastic and ultrasound properties are provided for IN718. Furthermore, monocrystalline Ni-based model alloys were produced and the influence of aluminum and the refractory elements on the activation energy and starting temperature of high-temperature damping were investigated. These results contribute to the further understanding of processing and material selection on material properties.