An experimental study was made of interfaces and dislocation sub-structures in a Nb-Ti-based alloy which had been subjected to creep deformation at various stress levels. Particular attention was paid to the orientation relationship between the body-centered cubic structured matrix and the face-centered cubic structured precipitate. A specific orientation relationship, [100]/(110)M||[220](111)P, was observed in samples which had been subjected to the highest stress level. Although the coincident site lattice model predicted a (100)/(100) - 45° relationship, the orientation relationship which developed was more consistent with the lock-in and invariant line models.

Interfaces and Dislocation Sub-Structures in a Nb-Ti Based Alloy - Influence of Creep Deformation. S.M.Allameh, R.W.Hayes, E.A.Loria, W.O.Soboyejo: Journal of Materials Science, 2002, 37[14], 2857-64