Hot isostatic pressing of nanostructured γ-TiAI powders

A study of the hot isostatic pressing (HIP’ing) of γ-TiAl powders produced by mechanical alloying, has demonstrated that full density can be achieved 400°C or more below the temperature required for conventional powder; that is 725°C or below. Nanostructured grains (≤ 100 nm) are observed after HIP’ing up to 850°C.