Effect of fission product interactions on the corrosion and mechanical properties of HTGR alloys. [HTGR]
Description: Preliminary experiments have been carried out to determine how fission product interactions may influence the mechanical integrity of reference HTGR structural metals. In this work Type 304 stainless steel, Incoloy 800 and Hastelloy X were heated to 550 to 650/sup 0/C in the presence of CsI. It was found that no corrosion of the alloys occurred unless air or oxygen was also present. A mechanism for the observed behavior is proposed. A description is also given of some long term exposures of HTGR materials to more prototypic, low concentrations of I/sub 2/, Te/sub 2/ and CsI in the presence of low partial pressures of O/sub 2/. These samples are scheduled for mechanical bend tests after exposure to determine the degree of embrittlement.
Date: January 1, 1978
Creator: Aronson, S.; Chow, J.G.Y.; Soo, P. & Friedlander, M.
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