Effect of Creep Deformation on the Crystallographic Orientation Distribution in Ni Base Superalloy
The crystallographic orientation distribution, and its change as a function of creep deformation in Ni-based single crystal superalloys have been investigated by X-ray diffractometry. The distribution of the crystallographic orientation has significantly broadened by creep deformations. Directional broadening of the distribution agrees with creep dislocations having the burgers vector of 1/2<101>. High temperature creep strain of superalloys can be estimated by a non-destractive test where the width of rocking curve of a diffraction peak is measured.
Young Won Chang, Nack J. Kim and Chong Soo Lee
T. Inoue et al., "Effect of Creep Deformation on the Crystallographic Orientation Distribution in Ni Base Superalloy", Advanced Materials Research, Vols. 26-28, pp. 213-216, 2007