Ti-30Mo is a one-phase, body centered cubic (bcc) alloy. Like titanium alloys, it is known to be degraded somewhat by hydrogen when charged under severe conditions distant from those characteristic of free immersion in brine. However, because Ti-30Mo does not form hydrides even when the hydrogen concentration reaches very large values,1 it is interesting to examine the corrosion behavior of this alloy in brine under γ radiation as a possible canister material for the storage of high-level nuclear wastes.
The amounts of hydrogen take-up by Ti-30Mo alloy were measured by hot vacuum extraction. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were applied to investigate the oxide layers and morphology of the surfaces after free immersion in the brine solution at 108 C, both with and without radiation. In situ measurements of the open circuit potential (OCP) and polarization behavior were conducted to study the corrosion properties of Ti-30Mo...
