Abstract
Significant efforts are ongoing, nationally and internationally, to reduce the radioactivity of spent nuclear fuel (SNF) and high level waste (HLW) for their disposal in potential repository by a process known as Transmutation. Transmutation involves generation of neutrons by bombardment of accelerator-driven protons onto a target material. These neutrons are then impinged upon SNF/HLW, minimizing or isolating actinides and fission products, thus, substantially reducing their half-lives. This paper presents the results of stress corrosion cracking (SCC) and localized corrosion studies of a martensitic stainless steel, namely Alloy EP-823 in aqueous environments of different pH values at ambient and elevated temperatures. Further, the metallographic and fractographic evaluations of all broken specimens have been performed.