Intergranular crack tip oxidation in a Ni-base superalloy

  title={Intergranular crack tip oxidation in a Ni-base superalloy},
  author={L. Viskari and Magnus H{\"o}rnqvist and Karren L. Moore and Yuan Guang Cao and Krystyna Stiller},
High temperature intergranular crack tip oxidation under a single 600 s long sustained tensile load at 700 °C was studied for the Ni-base superalloy Allvac 718Plus. High-resolution analytical techniques showed oxidation to take place at and immediately ahead of the tip of an open crack, forming a closed but layered oxide structure about the prior (now… CONTINUE READING