Effect of annealing on the microstructure behavior of D⁺-irradiated W-2vol.%TiC composite prepared by wet-chemical method

W-2vol.%TiC composites were prepared through wet-chemical method combined with sintering and hot-rolling process. In this work, the evolution of damage micrograph in W-2vol.%TiC was studied by SEM in situ observation as functions of annealing temperature and implantation fluence. The results show that the surface morphology of the W matrix was slightly affected after D ions irradiation, while the dispersively distributed TiC particles were damaged severely. After annealing at 1173 K and 1573 K, the irradiation damage structure was repaired.