Haynes 282 is a novel Ni-base superalloy, combining excellent weldability and general processability with a moderate cost. As such, it is a very promising material for e.g. industrial gas turbines, aero engines or advanced ultra-supercritical boilers, where increased combustion temperatures are essential to improve the efficiency and reduce emissions. In this experiment, we aim to study the effect of microstructure and temperature on the deformation mechanisms in Haynes 282. In-situ neutron scattering measurements during tensile tests between room temperature and 730°C will be undertaken, and coupled to advanced modelling. The purpose is to allow both optimisation of heat treatment procedures in order to tailor the micro-structure and properties for different industrial applications, and the development of accurate and reliable life prediction models.