A study was made of the diffusion-controlled deformation of 2-phase alloys. Transmission electron microscopic in situ heating experiments were used to investigate diffusion-controlled dislocation climb. The climb velocities were analyzed in terms of the diffusion coefficients and vacancy supersaturations which were required for the operation of diffusion-assisted dislocation sources.

Diffusion Assisted Dislocation Climb in Intermetallic Gamma TiAl. F.Appel: Materials Science and Engineering A, 2001, 317[1-2], 115-27