〈1 0 0〉 Dislocations in nickel-base superalloys: Formation and role in creep deformation

Creep deformation accelerates when the a〈1 0 0〉 interfacial dislocations enter the γ′ phase. During their climb towards the opposite interface, they attain a characteristic rectangular shape. This shape and the importance of the a〈1 0 0〉 super dislocations for creep deformation are discussed.