A transmission electron microscope investigation has been performed on the morphology of dislocations in deformed ${gamma}^{prime}-Ni_3(Al,Ti)$ alloys containing fine dispersion of disordered ${gamma}$ particles. Superlattice dislocations dissociate into fourfold Shockley partial dislocations in a uniform supersaturated solid solution of the ${gamma}^{prime}$ phase. Dislocations are attracted into the disordered ${gamma}$ phase and dissociate further in the particles. At any stage of aging, dislocations cut through the particles and the Orowan bypassing process does not occur even in the over-aged stage of this alloy system. The work necessary to pull the dislocation away from the disordered particles into the ordered matrix should mainly contribute to increase the strength of the ${gamma}^{prime}$ phase containing fine dispersion of the disordered ${gamma}$ phase.