Effect of Pt-Al bond-coat on the tensile deformation and fracture behaviors of a second-generation SX Ni-based superalloy at elevated temperatures

An investigation was conducted into the influence of applying PtAl bond-coat on the tensile deformation and fracture behavior of second-generation single crystal superalloy substrate with the temperature ranging between room temperature RT and 1100 °C. In the meantime, the development of a two-layer PtAl bond-coat, consisting of an outer layer of single-phase β-(Ni,Pt)Al and an inter-diffusion zone of refractory metal precipitates, has also been...