Perturbed Angular Correlation (PAC) measurements were performed at room temperature on samples of Hf(7)Ni(10) and of Hf(7)Ni(10) combined with TiV(0.8)Cr(1.2), and at temperatures in the range from 17 K to 350 K in a concentrated hydride of the combined alloy. The PAC results show that the intergranular phase becomes amorphous in the combination process. The results for the hydride composite show in the Hf(7)Ni(10) phase the formation of a stable interstitial hydrogen state below 100 K and a smooth rearrangement of the hydrogen atoms position above 100 K,corresponding to a slow diffusion movemnet of a short-range nature. A second phase transition is observed at around 300 K, presumably to aphase precursor of the hydrogen desorption of the hydride.